bluuebunny/crossref_metadata_2025 huggingface dataset:
Varieties of capitalism in Eastern Europe (with special emphasis on Estonia and Slovenia)
Authors: Adam Frane , Kristan Primož , Tomsšič Matevž
Published: February 2009

The authors proceed from the assumption that the institutional and economic efficiency of a particular country (or society) depends on its historic legacy or ‘path-dependence’, strategic interactions of the elite and the impact of the international environment. Estonia and Slovenia are both — not only economically, but also institutionally — perceived as relatively successful and prominent post-communist countries and new members of the EU. Yet they have developed completely different — in some aspects even diametrically opposite — regulative settings and socio-political arrangements. The main emphasis is on the connection between the dynamics and ideological preferences of political actors and the pace of reforms as well as institutional regulations. One can argue that the political elite in Estonia encouraged the shaping of the state in a direction close to the liberal-market model, whereas Slovenia is closer to the corporatist social welfare-state model. In both cases, some dysfunctional effects are evident that represent a new challenge to the elites and, at the same time, a test of their credibility and competence.
ON SOME WEIGHTED AVERAGE VALUES OF L-FUNCTIONS
Authors: SHPARLINSKI IGOR E.
Published: February 2009

Let q≥2 and N≥1 be integers. W. Zhang recently proved that for any fixed ε>0 and qε≤N≤q1/2−ε, where the sum is taken over all nonprincipal characters χ modulo q, L(1,χ) denotes the L-functions corresponding to χ, and αq=qo(1) is some explicit function of q. Here we improve this result and show that the same asymptotic formula holds in the essentially full range qε≤N≤q1−ε.
FINITE LOOPS WITH NILPOTENT INNER MAPPING GROUPS ARE CENTRALLY NILPOTENT
Authors: NIEMENMAA MARKKU
Published: February 2009

In this article we show that finite loops with nilpotent inner mapping groups are centrally nilpotent.
Effects of crop rotation and fallow residue management on maize growth, yield and soil carbon in a savannah-forest transition zone of Ghana
Authors: ADIKU S. G. K. , JONES J. W. , KUMAGA F. K. , TONYIGAH A.
Published: February 2009

The purpose of the present study was to investigate the effects of seven maize (Zea mays)–fallow rotation and fallow residue management treatments on growth, maize yield and soil carbon within a savannah-forest farming zone of Ghana. Over a 4-year period, maize rotated with bare fallow (control) produced an average maize biomass and yield of 4·0 and 1·0 t/ha/yr, respectively. Maize rotated with elephant grass (Pennisetum purpureum) with the fallow grass residue burning produced an average maize biomass and yield of 8·0 and 2·0 t/ha/yr, respectively. The removal of the fallow grass biomass (9·0 t/ha/yr) by burning resulted in a low total residue (maize stover+fallow residue) returned to the soil (7·0 t/ha/yr). The total residue returned to the soil was 14·0 t/ha/yr. Despite the larger total residue returned to the soil by the incorporation treatment, the performance of the maize was not significantly different from that of the fallow residue burning treatment. Maize rotated with cowpea (Vigna unguiculata), mucuna (Mucuna pruriens) or pigeon pea (Cajanus cajan) produced similar maize biomass of 8·0 t/ha/yr and yields of 2·0 t/ha/yr, but with higher variability for the maize–cowpea rotation. Biomass produced by fallow cowpea, mucuna or pigeon pea were 4·0, 5·0 and 8·0 t/ha/yr, respectively, and total residues added to the soil were 13·0, 13·0 and 15·0 t/ha/yr, respectively. Maize–grass rotation with fertilizer application to the maize resulted in biomass and yield production of 11·0 and 3·0 t/ha/yr, respectively, and fallow grass production of 12·0 t/ha/yr. The total residue returned to the soil was 18·0 t/ha/yr. Soil organic carbon (SOC) declined under all treatments over time, with the control losing about 55% of the initial SOC by the end of the trial. The decline in SOC was 19% for the fertilized maize–grass rotation, but all other treatments lost between 33 and 44% SOC. Overall, the fertilized maize–grass and maize–pigeon pea rotations were identified as those that sustained relatively high maize yields, returned large residue amounts to the soil and minimized soil carbon loss.
Impaired fixation suppression is a risk factor for vertigo after cochlear implantation
Authors: Krause E , Wechtenbruch J , Rader T , Berghaus A , Gürkov R
Published: February 2009

Objectives:

To analyse the correlation between visual fixation suppression test results and the occurrence of post-operative vertigo in patients receiving a cochlear implant, and to compare this with other possible risk factors.

Methods:

In a prospective study setting, caloric vestibular responses, visual fixation suppression and subjective vertigo symptoms were assessed in 59 adult patients undergoing cochlear implantation. These parameters were compared in patients with post-operative vertigo versus vertigo-free patients.

Results:

Vertigo symptoms were reported by 49 per cent of patients. Thirty-nine per cent of the patients had a decrease in caloric response on the implanted side. There was no statistically significant difference between the two patient groups regarding canal paresis, age, sex, implanted electrode type, implant side, surgeon, cause of deafness, petrous bone computed tomography findings and incidence of pre-operative vertigo. Patients with post-operative vertigo had a significantly greater prevalence of insufficient visual fixation suppression. All patients who suffered long-term post-operative vertigo had insufficient visual fixation suppression.

Conclusions:

Pre-operative impaired visual fixation suppression is a major risk factor for the occurrence of vertigo after cochlear implantation.
‘Asceticising’ Monastic Families: Ascetic Genealogies, Property Feuds and Anglo-Hindu Law in Late Colonial India
Authors: KASTURI MALAVIKA
Published: February 2009

This paper examines a fundamental premise of Anglo-Hindu law on succession between 1860 and 1940, that kinship was emblematic of secular modes of living, to analyse its implications for the assertion of masculinity within ascetic orders in northern India. Legal discourses engaged with rights to succession within ascetic orders, by functioning on the assumption that the renunciatory life of ascetics was antithetical to sexuality and domesticity. This institutionalization of law, that defined asceticism and fixed ascetic masculinities within a legal frame, occurred with the consent of ascetic orders concerned with the ownership and distribution of property, even though sexuality and gender played a central role in shaping relationships within sacred spaces. Myriad ties embracing the language of kinship shaped ascetic orders. Bonds of sentiment and sexual attachment over-lapped with, sustained, and produced the bonds tying spiritual preceptors to their disciples. Relationships within ascetic families, consisting of men, their female companions, children and relatives, along with their attendant obligations were validated through rights of ownership and inheritance to property. Taking advantage of Anglo-Hindu law by the early twentieth century, ascetic orders sought to ‘purify’ their genealogies through the medium of property disputes fought in colonial courts. By manipulating the legal meanings ascribed to asceticism, masculinity and renunciation, these orders effaced unwanted members from their orders with varying degrees of success, especially women and children.
Session 5: Nutrition communication The challenge of effective food risk communication
Authors: McGloin Aileen , Delaney Liam , Hudson Eibhlin , Wall Pat
Published: February 2009

A chronology of food scares combined with a rapid, unchecked, rise in lifestyle-related diseases such as obesity highlights the need for a focus on effective food risk communication. However, food risk communication is highly complex. Many factors will affect its success, including the demeanour and conduct of the source, its transparency, interaction with the public, acknowledgement of risks and timely disclosure. How the message is developed is also important in terms of language, style and pretesting with target audiences, as is the choice of appropriate channels for reaching target audiences. Finally, there are many personal factors that may affect risk perception such as previous experience, knowledge, attitudes and beliefs, personality, psychological factors and socio-demographic factors, many of which remain unexplored. While there is evidence that campaigns that communicate health risk have been associated with behaviour change in relation to major public health and safety issues in the past, it is unknown at this stage whether targeting risk information based on risk-perception segmentation can increase the effectiveness of the messages.
The history of a “primary source”: The making of Tûghî's chronicle on the regicide of Osman II
Authors: Tezcan Baki
Published: February 2009

A short chronicle by a former janissary called Tûghî on the regicide of the Ottoman Sultan Osman II in 1622 had a definitive impact on seventeenth-century Ottoman historiography in terms of the way in which this regicide was recounted. This study examines the formation of Tûghî's chronicle and shows how within the course of the year following the regicide, Tûghî's initial attitude, which recognized the collective responsibility of the military caste (kul) in the murder of Osman, evolved into a claim of their innocence. The chronicle of Tûghî is extant in successive editions of his own. A careful examination of these editions makes it possible to follow the evolution of Tûghî's narrative on the regicide in response to the historical developments in its immediate aftermath and thus witness both the evolution of a “primary source” and the gradual political sophistication of a janissary.
“Well-made worlds”
Authors: Smith John D.
Published: February 2009

A re-examination of a textual quirk in the Mahābhārata.
Not the Lun yu: The Chu script bamboo slip manuscript, Zigao, and the nature of early Confucianism
Authors: Allan Sarah
Published: February 2009

This article includes a line-by-line translation and textual analysis of the Warring States period Chu script bamboo slip manuscript, Zigao 子羔. It argues that the manuscript differs from the transmitted Confucian tradition, but would have been considered a ru 儒 (“Confucian”) text. Unusual features include: (1) The disciple is Zigao, who is described negatively in the Lun yu. (2) The term tian zi 天子, “son-of-sky/heaven” is used literally, to refer to the divinely conceived progenitors of the three royal lineages. (3) The term san wang, “three kings”, refers to these progenitors rather than the founding rulers. (4) Confucius advocates abdication. (5) The progenitors of the dynastic lineages, rather than the founding rulers, are juxtaposed to Shun 舜, who received the rule from Yao because of his merit. A Chinese edition, with direct transcriptions and alternative readings of the Chu script graphs, is appended.
A characterization ofω-limit sets in shift spaces
Authors: BARWELL ANDREW , GOOD CHRIS , KNIGHT ROBIN , RAINES BRIAN E.
Published: February 2009

A set Λ isinternally chain transitiveif for anyx,y∈Λ and ϵ>0 there is an ϵ-pseudo-orbit in Λ betweenxandy. In this paper we characterize allω-limit sets in shifts of finite type by showing that, if Λ is a closed, strongly shift-invariant subset of a shift of finite type,X, then there is a pointz∈Xwithω(z)=Λ if and only if Λ is internally chain transitive. It follows immediately that any closed, strongly shift-invariant, internally chain transitive subset of a shift space over some alphabet ℬ is theω-limit set of some point in the full shift space over ℬ. We use similar techniques to prove that, for a tent mapf, a closed, stronglyf-invariant, internally chain transitive subset of the interval is theω-limit set of a point provided it does not contain the image of the critical point. We give an example of a sofic shift spaceZ𝒢(a factor of a shift space of finite type) that is not of finite type that has an internally chain transitive subset that is not theω-limit set of any point inZ𝒢.
Prospective evaluation of latent tuberculosis with interferon-γ release assays in drug and alcohol abusers
Authors: RIVAS I. , LATORRE I. , SANVISENS A. , DOMÍNGUEZ J. , TOR J. , PRAT C. , REY-JOLY C. , MUGA R.
Published: February 2009

In vitro tests have been developed for the diagnosis of tuberculosis (TB) infection. The objective was to analyse latent TB infection in drug and alcohol abusers through two interferon-γ techniques. One hundred and thirty-nine patients were admitted between February 2006 and May 2007. Mean age was 39·8 years [31% HIV positive]. The enzyme immunoassay (EIA) and enzyme-linked immunospot (ELISPOT) interferon-γ assays were positive in 34% of patients with an agreement of 83% (κ=0·63). Tuberculin skin test (TST) was positive in 29% of patients and the agreement of TST with EIA and ELISPOT interferon-γ assays was 85% (κ=0·62) and 83% (κ=0·57), respectively. Almost 50% of patients with history of TB had a positive in vitro test. In conclusion, we observed a high prevalence of latent TB and good agreement between the new in vitro tests that otherwise may continue to be positive long after developing TB disease.
The naming impairment of living and nonliving items in Alzheimer's disease
Authors: Montanes Patricia , Goldblum Marie Claire , Boller Francois
Published: February 2009

Several studies of semantic abilities in Dementia of the Alzheimer Type (DAT) suggest that their semantic disorders may affect specific categories of knowledge. In particular, the existence of a category-specific semantic impairment affecting, selectively, living things has frequently been reported in association with DAT. We report here results from two naming tasks of 25 DAT patients and two subgroups within this population. The first naming task used 48 black and white line drawings from Snodgrass and Vanderwart (1980) which controlled the visual complexity of stimuli from living and nonliving categories. The second task used 44 colored pictures (to assess the influence of word frequency in living vs. nonliving categories). Within the set of black and white pictures, both DAT patients and controls obtained significantly lower scores on high visual complexity stimuli than on stimuli of low visual complexity. A clear effect of semantic category emerged for DAT patients and controls, with a lower performance on the living category. Within the colored set, pictures corresponding to high frequency words gave rise to significantly higher scores than pictures corresponding to low frequency words. No significant difference emerged between living versus nonliving categories, either in DAT patients or in controls. In the two tasks, the two subgroups of DAT patients presented a different profile of performance and error type. As color constitutes the main difference between the two sets of pictures, our results point to the relevance of this cue in the processing of semantic information, with visual complexity and frequency also being very relevant. (JINS, 1995, I, 39–48.)
Simple reaction time as a measure of global attention in Alzheimer's disease
Authors: Sano Mary , Rosen Wilma , Stern Yaakov , Rosen Jeffrey , Mayeux Richard
Published: February 2009

Alzheimer's disease (AD) is characterized by progressive decline in memory, language and other cognitive functions. Deficits in attentional processes have also been suggested. A simple reaction time (RT) task was used to assess global attention in AD. The length and consistency of a warning signal given prior to the response stimulus were manipulated to determine if patients with AD and age-matched controls benefit from predictability in RT tasks. Overall reaction time was slower in the AD group than in the and control group. Both groups demonstrated significant improvement in RT with long warning signals compared to short warning signals, but only the control group benefited from the consistency of the warning. (JINS, 1995, I, 56–61.)
One year psychosocial outcome in head injury
Authors: Dikmen Sureyya S. , Ross Barbara L. , Machamer Joan E. , Temkin Nancy R.
Published: February 2009

Psychosocial outcome at one year post-injury was examined prospectively in 466 hospitalized head-injured subjects, 124 trauma controls, and 88 friend controls. The results indicate that head injury is associated with persistent psychosocial limitations. However, the presence and extent of limitations are related to the demographics of the population injured, to other system injuries sustained in the same accident, and particularly to the severity of the head injury. More severe head injuries are associated with limitations implying greater dependence on others including poorer Glasgow Outcome Scale (GOS) ratings, dependent living, unemployment, low income, and reliance on family and social subsidy systems. Head injury severity is more closely related to more objective indices of psychosocial outcome (e.g., employment) than to self-perceived psychosocial limitations, such as measured by the Sickness Impact Profile (SIP). (JINS, 1995, I, 67–77.)
Verbal learning and memory following pediatric closed-head injury
Authors: Yeates Keith Owen , Blumenstein Elliot , Patterson Carolyn M. , Delis Dean C.
Published: February 2009

In this study, verbal learning and memory following pediatric closed-head injuries (CHI) using the children's version of the California Verbal Learning Test (CVLT). Participants included 47 children, ages 5–16 yr, with a history of CHI, and 47 matched, noninjured controls. Children with CHI performed more poorly than controls on the CVLT, although their deficits varied qualitatively as a function of injury severity. Those with mild/moderate injuries performed as well as controls on learning trials, but they recalled proportionally fewer words after a delay (although their recognition was intact). Severely injured children demonstrated deficits in learning, delayed recall, and recognition, compared to controls. The groups did not differ in learning characteristics, but children with severe CHI exhibited more intrusions than controls. Pediatric CHI are associated with specific disturbances in verbal learning and memory similar to those of adults with CHI but different from those of children with other developmental and neurological disorders.JINS, 1995,I, 78–87.)
The biasing effect of verbal labels on memory for ambiguous figures in patients with progressive dementia
Authors: Ostergaard Arne L. , Heindel William C. , Paulsen Jane S.
Published: February 2009

This experiment investigated the effects of verbal labels on recognition memory for ambiguous visual figures in patients with Alzheimer's disease (AD), patients with Huntington's disease (HD), and matched normal control subjects. The study employed ambiguous figures that could be interpreted in two different ways. During the study phase each figure was presented together with a verbal label that corresponded to one interpretation of the figure. After a 30-min retention interval a recognition memory test was given during which the study figures and distractor figures were presented one at a time without verbal labels. For each study figure two distractor figures were employed, each corresponding to a different interpretation of the study figure. The patients' overall recognition memory performance was severely impaired compared to control subjects. However, all subject groups tended to produce responses and response latencies to distractor items that were consistent with the verbal labels presented during the study phase. This bias effect occurred in the AD patients despite the fact that their recognition memory performance was at chance level. Indeed, there was no significant difference in the bias evidenced by the AD and HD patients and their respective matched control subjects. The bias effects were obtained in an explicit memory task, and the findings are discussed in terms of unconscious influences on explicit memory processes. (JINS, 1995, I, 271–280.)
Sensory- and memory-mediated olfactory dysfunction in Huntington's disease
Authors: Nordin Steven , Paulsen Jane S. , Murphy Claire
Published: February 2009

Neuropathology in Huntington's disease (HD) known to project to areas that process olfactory information raises the questions of which olfactory function, if any, is most affected in HD, and how to explain such dysfunction in terms of olfactory sensitivity and cognition. These questions were studied by comparing HD patients and controls (matched for age, gender, and education) on absolute detection, intensity discrimination, quality discrimination, short-term recognition memory, and lexical- and picture-based identification for odor. Taste or vision were used as comparison modalities. The results suggest that whereas odor-recognition memory is not affected in patients with HD, these patients have impaired olfactory functioning with respect to absolute detection, intensity discrimination, quality discrimination, and identification. The three latter impairments were significantly explained by poor detection sensitivity. Odor identification was the function most affected. (JINS, 1995, I, 281–290.)
Normal perceptual priming of orthographically illegal nonwords in amnesia
Authors: Keane Margaret M. , Gabrieli John D.E. , Noland Julia S. , McNealy Susan Ingemanson
Published: February 2009

This study examined priming in perceptual identification of orthographically illegal nonwords in control subjects and patients with global amnesia. Subjects studied a list of orthographically illegal nonwords and then performed a perceptual identification task in which half of the stimuli were from the prior study list and half were new (unstudied) stimuli. Priming was reflected in enhanced identification accuracy of studied compared to unstudied nonwords. Amnesic patients showed significant and normal priming despite impaired recognition memory performance. Because the experimental stimuli were dissimilar to real words in terms of orthography and phonology, it is unlikely that this priming effect was mediated by activation of pre-existing representations of orthographically or phonologically similar words, morphemes, or syllables. These results demonstrate that intact perceptual priming in amnesia is not limited to stimuli that are premorbidly represented in long-term knowledge, nor to novel stimuli that conform to the rules that characterize familiar items. Further, because the experimental stimuli comprised novel letter assemblies, the results suggest that amnesic patients can show normal priming for new perceptual associations. These findings demonstrate that processes spared in amnesia can support the creation and subsequent retrieval of novel stimulus representations. (JINS, 1995,I, 425–433.)
Memory for novel and familiar spatial and linguistic temporal distance information in hypoxic subjects
Authors: Hopkins Ramona O. , Kesner Raymond P. , Goldstein Michael
Published: February 2009

Hypoxia is known to cause damage to the hippocampus as well as memory impairments in humans. Subjects who have experienced a hypoxic episode and age-, gender-, and education-matched control subjects were tested for memory for spatial and linguistic temporal distance information using sentences and spatial locations. Each test contained a familiar component based on information that is meaningful and is thought to be stored as part of the knowledge system (prior knowledge) as well as a novel component based on new information. Subjects were presented a list of eight-word sentences or eight spatial locations (Xs) on a grid on a Macintosh computer and tested for memory for temporal distances. Temporal distance is defined as the number of items that occur between the two test items, in the study phase. Compared to control subjects, hypoxic subjects were impaired across all temporal distances on the novel spatial and linguistic tasks. As the temporal distance increased, hypoxic subjects showed some improvement in memory performance. In addition, memory of familiar temporal distance information was also assessed. Hypoxic subjects were impaired, compared to control subjects, for familiar temporal distance information. For hypoxic subjects there was a proportionally greater impairment for novel compared to familiar spatial and linguistic temporal distance information. There was a significant difference in their performance on the familiar temporal distance tasks compared to their performance on the novel tasks. Prior knowledge appears to attenuate the deficits seen in the familiar temporal distance tasks. It appears that hypoxia may cause more selective damage to the hippocampus and this damage is sufficient to produce profound memory impairments for primarily novel and less severe memory impairments for familiar spatial and linguistic temporal distance information. (JINS, 1995, I, 454–468.)
Aging, encoding specificity, and memory change in the Double Memory Test
Authors: Buschke Herman , Sliwinski Martin , Kuslansky Gail , Lipton Richard B.
Published: February 2009

Aged and young adults were tested by category cued recall after learning with category cues (CCR) or with item cues (ICR). CCR was about twice ICR for both aged and young adults. The aged recalled less than the young and did not benefit as much from greater encoding specificity and deeper processing in CCR. ICR and CCR were correlated, so that expected CCR can be predicted from ICR. The regression of CCR on ICR was linear for young adults, but was piecewise linear for the aged, showing that the relationship between ICR and CCR was not uniform for the aged adults. Lower than expected CCR by a subset of aged without clinical dementia may be a sign of preclinical dementia. (JINS, 1995, I, 483–493.)
Comparative study of visual and verbal short-term memory in English and Spanish speakers: Testing a linguistic hypothesis
Authors: Olazaran Javier , Jacobs Diane M. , Stern Yaakov
Published: February 2009

It has been proposed that differences in digit span performance between English and Spanish speakers are due to the greater number of syllables per digit in the Spanish language. To test this hypothesis, we studied the performance of 30 English- and 30 Spanish-speaking elders on the Wcchsler Adult Intelligence Scale-Revised (WAIS-R) Digit Span Subtest, a modified digit span test that was linguistically comparable for both languages, and the Corsi Block Test. Consistent with previous reports, we found that English speakers scored significantly higher than Spanish speakers on WAIS-R Digit Span Forward. Group differences were reduced on the modified Digit Span Forward, but remained significant. English and Spanish speakers scored comparably on Digit Span Backward (WAIS-R and modified) and Visual Span. We suggest that although differences in the number of syllables per digit string are in part responsible for the lower performance of Spanish speakers on Digit Span Forward, cultural and educational issues also contribute to the observed differences between English and Spanish speakers. (J1NS, 1996, 2, 105–110.)
Neuropsychological Deficits In HIV-1 seropositive and seronegative intravenous drug users (IVDUs): A follow-up study
Authors: Hestad Knut , Aukrust Pȧl , Ellertsen Bjørn , Kløve Hallgrim
Published: February 2009

Human immunodeficiency virus type 1 (HIV-1) seropositive AIDS free and HIV-1 seronegative intravenous drug users were tested twice with a comprehensive neuropsychological test battery. Only minor group differences were found. Memory difficulties were the most pronounced difference with lower scores in the HIV-1 seropositive group. The memory difficulties were to some degree associated with emotional difficulties, that is, anxiety. The HIV-1 seropositive subjects were tested a third time and there was no further decline in any test with memory content at this testing. The only test that showed a significant decline in the HIV-1 seropositive group was the Trail Making Test. (JINS, 1996, 2, 126–133.)
Interference effects in chronic alcoholism
Authors: Blusewicz Matthew J. , Kramer Joel H. , Delmonico Richard L.
Published: February 2009

This study investigated underlying mechanisms of the verbal memory disorder associated with chronic alcoholism. Previous investigations have suggested that alcoholics are more vulnerable to interference effects on verbal learning and memory tasks, both with respect to retroactive interference (RI) and proactive interference (PI); this was the hypothesis of the current study. Measures of RI and build-up and release from PI were administered to 31 abstinent male chronic alcoholics and 24 healthy male nonalcoholic control subjects. Alcoholics demonstrated more sensitivity to RI than controls. Additionally, alcoholics displayed a more rapid build-up of PI, although they showed normal release. An increased interference effect was found to be a component of chronic alcoholics’ verbal memory impairment and may differentiate chronic alcoholism from other disorders affecting verbal learning and memory. (JINS, 1996, 2, 141–145.)
Dissociation of implicit and explicit knowledge in a case of psychogenic retrograde amnesia
Authors: Campodonico Jeffrey R. , Rediess Sharilyn
Published: February 2009

There have been few studies of psychogenic amnesia based on a cognitive or neuropsychological framework. In the present study, a patient with acute onset of profound psychogenic retrograde amnesia was examined. Although her performance on neuropsychological tasks revealed intact anterograde memory, language functioning, visuospatial and constructional skills, and mental speed and flexibility, she displayed severe impairments on a variety of retrograde memory tasks. Furthermore, initial observations revealed inconsistencies between the patient’s recall of semantic knowledge on direct questioning and her ability to demonstrate the use of this knowledge on indirect tasks. To test this formally, we devised an indirect remote knowledge task to examine a possible dissociation between explicit and implicit memory. Two healthy subjects matched for age, gender, education, occupation, and estimated IQ were also tested. As predicted, the findings demonstrate implicit knowledge despite impaired explicit recall for the same material. (JINS, 1996, 2, 146–158.)
Effect of asymptomatic carotid artery disease on cognitive outcome after cardiopulmonary bypass
Authors: Vingerhoets Guy , van Nooten Guido , Jannes Constantin
Published: February 2009

This prospective study reinvestigates the effect of asymptomatic carotid artery disease on the cognitive outcome after cardiopulmonary bypass (CPB) (Harrison et al., 1989). Patients (N = 104) scheduled for cardiac surgery using CPB were classified in one of two groups based on the results of a preoperative duplex B mode Dopplcr scan of the internal carotid arteries. All patients received a neuropsychological examination before surgery, 8 days after surgery, and 6 months after surgery (n = 79). When group data are considered, patients showed evidence of selective cognitive dysfunction early after surgery. These dysfunctions were resolved by the sixth postoperative month. We found no indications that the presence of asymptomatic carotid artery disease increased the incidence of cognitive disturbances after CPB or differentially affected the postoperative performance. We conclude that mild to moderate asymptomatic carotid artery disease does not appear to play a major role in the genesis of postoperative neuropsychological sequelae. (JINS, 1996,2, 236–239.)
Near drowning in frigid water: A case study of a 31-year-old woman
Authors: Huckabee Helena C. G. , Craig Paul L. , Williams J. Michael
Published: February 2009

A 31-yr-old woman demonstrated intact neuropsychological functioning after being submerged for at least 30 minutes in icy cold water. Following submersion, the patient received CPR for approximately 1 hr. Eight hours after submersion, the patient's temperature was 31°C (87°F). She remained nonresponsive for 2 days after the accident. Extensive neuropsychological testing was completed 3 mo after the accident with no objective or subjective deficits evidenced. This case of hypothermically mediated neuroprotection from anoxia in an adult supports the need for further research on the putative neurophysiological mechanisms invoked and the potential for application of clinically induced hypothermia in the acute management of other types of cerebral insults. (JINS, 1996, 2, 256–260.)
More glasnost on Bekhterev perestroika
Authors: LeFever F. Frank
Published: February 2009

My thanks to Antonio Puente (1995) for his letter calling attention to Bekhterev Institute and a neglected aspect of Russian neuropsychology. He says, “The question of why this psychometric approach is not known outside the former Soviet Union is an interesting one,” and I agree. Like the Purloined Letter, this secret has been right under the noses of INS members since 1989!
The longitudinal stability of the WRAT-R Reading subtest: Is it an appropriate estimate of premorbid intelligence?
Authors: Johnstone Brick , Wilhelm Karen L.
Published: February 2009

Reading tests are assumed to be accurate estimates of premorbid intelligence, based on the belief that reading remains relatively stable following cerebral injury/disease. However, this assumption has been primarily inferred only from studies comparing differences in reading/intelligence measures between neurologically impaired and normal groups. The current study, using within-subject comparisons, compared the longitudinal stability of reading (WRAT-R/3) and intelligence (WAIS-R FIQ) scores for 39 individuals with cognitive dysfunction referred for repeat neuropsychological evaluation. Wilcoxon signed-ranks tests indicated that reading scores: (1) did not statistically change for those demonstrating intellectual decline (>0 point decline in FIQ), or for those who remained relatively stable (FIQ increase between 0 and 6 points) over retest, but (2) did significantly improve for those demonstrating intellectual improvement greater than 6 points. These results suggest that reading scores may be appropriately considered as “hold” tests for individuals who intellectually decline/remain stable over time, but not for those demonstrating significant intellectual improvement. Additionally, significant variability in reading score decline/improvement suggests that caution must be used when estimating premorbid intelligence based on WRAT-R/3 Reading scores. (JINS, 1996, 2, 282–285.)
Concurrent validity of Spanish-language versions of the Mini-Mental State Examination, Mental Status Questionnaire, Information-Memory-Concentration Test, and Orientation-Memory-Concentration Test: Alzheimer's disease patients and nondemented elderly comparison subjects
Authors: Taussig I. Maribel , Mack Wendy J. , Henderson Victor W.
Published: February 2009

One-hundred fifty-eight elderly Spanish-speaking U.S. residents (81 patients diagnosed with Alzheimer's disease and 77 subjects without dementia) were tested with Spanish-language versions of four brief cognitive assessment instruments: the Mini-Mental State Examination (S-MMSE), the Mental Status Questionnaire (S-MSQ), the Information-Memory-Concentration test (S-IMC), and the Orientation-Memory-Conccntration test (S-OMC). Within-group performances were highly correlated for all four instruments. All tests distinguished between the demented and nondemented groups, but best discrimination was achieved with the S-IMC, which correctly classified 98% of subjects. This version was also the best predictor of functional disability, as measured by impairments in instrumental activities of daily living. Within the normal comparison group, neither gender nor a subject's monolingual/bilingual status affected test performance. These four Spanish-language cognitive screening tasks may aid in the evaluation of dementia among Spanish-speaking patients. (J1NS, 1996, 2, 286–298.)
Neuropsychological functioning and determinants of morning alertness in patients with obstructive sleep apnea syndrome
Authors: Verstraeten Edwin , Cluydts Raymond , Verbraecken Johan , Roeck Jacques De
Published: February 2009

Neuropsychological functioning is reported to be impaired in patients suffering from obstructive sleep apnea syndrome (OSAS). This syndrome is characterized by nocturnal respiratory disturbances, blood oxygen desaturations, sleep fragmentation, and excessive daytime sleepiness. Opinions arc divided concerning the exact relationship between the observed cognitive deficits, nocturnal hypoxia, sleep disruption, and impaired daytime alertness. In the present study, morning neuropsychological function of 26 moderate to severe middle-aged sleep apneics is compared to that of 22 primary insomniacs. There were no performance differences on a range of neuropsychological tests among the two patient groups. In addition, the data suggest that morning alertness impairment, which is closely associated with a lack of slow wave sleep (SWS) and rapid eye movement (REM) sleep, is of major importance in inducing poorer cognitive performance in patients with moderate to severe sleep apnea. (JINS, 1996, 2,306–314.)
Measures of deficit unawareness for predicted performance experiments
Authors: Trosset Michael W. , Kaszniak Alfred W.
Published: February 2009

Predicted performance experiments attempt to quantify an impaired individual's awareness of his or her deficit. These experiments measure perceived ability by the individual's prediction of his or her performance on a specific cognitive task and actual ability by his or her subsequent performance on that task. To date, the most comprehensive predicted performance experiment is the one proposed and implemented by McGlynn and Kaszniak (1991b). This experiment is potentially capable of removing a number of influences that may be confounded with deficit unawareness; however, it is not obvious what method of quantitative analysis best exploits this capability. In the present report, several possibilities are discussed. The limitations of McGlynn and Kaszniak's method are identified, and a more satisfying measure of deficit unawareness is proposed. (JINS, 1996,2, 315–322.)
Huntington's disease and eyeblink classical conditioning: Normal learning but abnormal timing
Authors: Woodruff-Pak Diana S. , Papka Michelle
Published: February 2009

On the basis of what is known about the neural circuitry essential or normally involved in eyeblink classical conditioning (EBCC), the pattern of neurodegeneration in Huntington's disease (HD) would not appear to interfere with this type of learning. HD causes severe atrophy of the basal ganglia and thinning and shrinkage of the cerebral cortex. However, the hippocampus and hippocampal cholinergic system remain relatively intact, as does the cerebellum. Because the brain circuitry engaged in EBCC is neither lesioned nor disrupted in HD, it was predicted that HD patients would perform like normal control subjects in the 400-ms delay EBCC paradigm. Performance of seven patients with HD was compared to age-matched normals, with two control subjects matched to each HD patient. There were no differences in production of conditioned responses (CRs) between HD patients and normal control subjects, but the timing of the CR was abnormal in HD. Comparisons of HD patients to patients with other neurodegenerative diseases (probable Alzheimer's disease (PAD) and Down syndrome (DS) over the age of 35 with presumed Alzheimer-like neuropathology) and to patients with cerebellar lesions demonstrated significantly better EBCC performance in HD. Results suggest that the ability to acquire CRs is normal in HD, but the striatum may have some role in optimizing the timing of the CR. (JINS, 1996, 2, 323–334.)
Reading lexically without semantics: Evidence from patients with probable Alzheimer's disease
Authors: Raymer Anastasia M. , Berndt Rita Sloan
Published: February 2009

Recent modifications of the lexical model of oral reading make the prediction that under conditions where sublexical reading processes alone cannot achieve the target pronunciation (i.e., when words have exceptional spellings or when sublexical processes are impaired), patients with severe semantic impairment should have more difficulty reading aloud semantically impaired words than semantically retained words. In a battery of lexical-semantic and reading tasks, two neurologically normal control subjects and two subjects with probable Alzheimer's disease (AD) and only moderate semantic impairment read aloud all words accurately. One AD subject with severe semantic impairment was impaired in word reading but demonstrated no difference in reading words with regular and exceptional spellings. Another AD subject with severe semantic impairment read aloud without error virtually all regular and exception words. Neither severely impaired AD subject demonstrated any relationship between oral reading accuracy and semantic knowledge of exception words. These findings support a model of word reading incorporating lexical, nonsemantic processes by which lexical orthographic input representations directly activate lexical phonological output representations without the necessity of semantic mediation. (JINS, 1996, 2, 340–349.)
A preliminary neuropsychological study of Persian Gulf veterans
Authors: Goldstein Gerald , Beers Sue R. , Morrow Lisa A. , Shemansky Wendy Jo , Steinhauer Stuart R.
Published: February 2009

A neuropsychological investigation of 21 Persian Gulf veterans and 38 demographically matched controls was conducted in order to make a preliminary determination concerning presence of neuropsychological deficits associated with the Persian Gulf War experience. The neuropsychological test battery consisted of measures of complex attention, memory, and motor skills previously shown to be sensitive to exposure to environmental toxins. It was found that the Persian Gulf veteran group did not demonstrate substantial impairment, but an impairment index derived from 14 test variables was statistically significantly different from controls in the direction of poorer performance. (JINS, 1996, 2, 368–371.)
Hemispheric antagonism in visuo-spatial neglect: A case study
Authors: Marshall John C. , Halligan Peter W.
Published: February 2009

We report a case of severe visuo-spatial neglect consequent upon right-hemisphere stroke. At the time of testing, the patient had no visual field cut and no significant hemiparesis. Conventional testing on cancellation tasks with the right hand revealed reliable left neglect, but performance was significantly improved when the left hand was used. Investigations of (manual) line bisection showed normal performance with the right hand but right neglect when the left hand was used. Right neglect was also observed on a purely perceptual version of the line bisection task. We argue that the attentional vectors of the cerebral hemispheres can be modulated by (perceptual) task-demands and by (motorie) response demands. (JINS, 1996, 2, 412–418.)
Perceptual and premotor components of unilateral auditory neglect
Authors: Sterzi Roberto , Piacentini Sylvie , Polimeni Mario , Liverani Francesco , Bisiach Edoardo
Published: February 2009

Recent investigations have distinguished between ophthalmokinetic and melokinetic factors of unilateral neglect. The aim of our study was to investigate the possible dissociation between melokinetic (premotor) and perceptual factors, avoiding any overt oculokinctic components. We asked four blindfolded left neglect patients to set a dichotic sound in central position, by moving a handle controlling the difference of intensity between the sounds delivered to the left and to the right cars. Two conflicting conditions were used. In the congruent condition, the sound moved in the same direction as the hand movement; in the noncongruent condition, it moved in the opposite direction. One patient performed as if suffering from melokinetic neglect, and another as if suffering from perceptual neglect. The behavior of the other two subjects did not lend itself to a clearcut interpretation. (JINS, 1996, 2, 419–425.)
Modulation of neglect hemianesthesia by transcutaneous electrical stimulation
Authors: Vallar Giuseppe , Rusconi Maria Luisa , Bernardini Bruno
Published: February 2009

The effects of transcutaneous electrical stimulation on deficits of tactile perception contralateral to a hemispheric lesion were investigated in 10 right brain-damaged patients and in four left brain-damaged patients. The somatosensory deficit recovered, transiently and in part, after stimulation of the side of the neck contralateral to the side of the lesion, in all 10 patients with lesions in the right hemisphere, both with (six cases) and without (four cases) left visuo-spatial hemineglect, and in one left brain-damaged patient with right hemineglect. In three left brain-damaged patients without hemineglect, the treatment had no detectable effects. In one right brain-damaged patient, the stimulation of the side of the neck ipsilateral to the side of the lesion temporarily worsened the somatosensory deficit. These effects of transcutaneous electrical stimulation are similar to those of vestibular stimulation. The suggestion is made that these treatments modulate, through afferent sensory pathways, higher-order spatial representations of the body, which are pathologically distorted toward the side of the lesion. The modulatory effect is direction-specific: the defective internal representation of the contralesional side may be either partly restored, improving the disorder of tactile perception, or further impoverished, worsening the deficit. The possible neural basis of this modulation is discussed. (JINS, 1996, 2, 452–459.)
Motor dysfunction profiles in traumatic brain injury and postconcussion syndrome
Authors: Greiffenstein Manfred F. , Baker W. John , Gola Thomas
Published: February 2009

Motor measures are sensitive to central lesions, but they are also affected by peripheral injury and motivation. The motor skills profiles of proven brain injury clients were compared with the profiles of healthy postconcussion patients. The chief result was a double dissociation: The traumatic brain injury (TBI) group produced a motor dysfunction gradient consistent with upper motor neuron disease, while the compensation-seeking postconcussion group produced a nonphysiologic pattern. Objective measures of behavioral pain and emotional distress did not correlate with the findings. Motor skill deficiencies in postconcussion syndrome (PCS) are probably functional in nature. (JINS, 1996,2, 477–485.)
Comparison of neuropsychological functioning in Alzheimer's disease and frontotemporal dementia
Authors: Pachana Nancy Ann , Boone Kyle Brauer , Miller Bruce L. , Cummings Jeffrey L. , Berman Nancy
Published: February 2009

Neuropsychological changes distinguishing mild Alzheimer's disease (AD) from frontotemporal dementia (FTD) have been described, but empirical verification of differential cognitive characteristics is lacking. Archival neuropsychological data on 15 FTD patients, 16 AD patients, and 16 controls were compared. Controls outperformed both patient groups on measures of verbal and nonverbal memory, executive ability, and constructional skill, with AD patients showing more widespread memory decline. No differences were found between the 3 groups in confrontation naming, recognition memory, or basic attention. Patient groups differed only in nonverbal memory, with FTD patients performing significantly better than AD patients. However, patient groups also differed in pattern of performance across executive and memory domains. Specifically, AD patients exhibited significantly greater impairment on memory than executive tasks, whereas the opposite pattern characterized ther FTD group. These findings suggest that examination of relative rankings of scores across cognitive domains, in addition to interpretation of individual neuropsychological scores, may be useful in differential diagnosis of FTD versus AD. (JINS, 1996, 2, 505–510.)