cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.21829355
title: Early intervention for preventing posttraumatic stress disorder: an Internet-based virtual reality treatment

description: Posttraumatic stress disorder (PTSD) develops in approximately 20% of people exposed to a traumatic event, and studies have shown that cognitive-behavioral therapy (CBT) is effective as a treatment for chronic PTSD. It has also been shown to prevent PTSD when delivered early after a traumatic event. However, studies have shown that uptake of early treatment is generally low, and therefore, the need to provide interventions through other mediums has been identified. The use of technology may overcome barriers to treatment. This paper describes a randomized controlled trial that will examine an early CBT intervention for PTSD. The treatment incorporates virtual reality (VR) as a method for delivering exposure-based elements of the treatment. The intervention is Internet based, such that the therapist and patient will “meet” in a secure online site. This site will also include multi-media components of the treatment (such as videos, audios, VR) that can be accessed by the patient between sessions. Two hundred patients arriving to a Level 1 emergency department following a motor vehicle accident will be randomly assigned to either treatment or control groups. Inclusion criteria are age 18–65, PTSD symptoms 2 weeks posttrauma related to current trauma, no suicidality, no psychosis. Patients will be assessed by telephone by a team blind to the study group, on four occasions: before and after treatment, and 6 and 12 months posttreatment. The primary outcome is PTSD symptoms at follow up. Secondary outcomes include depression and cost effectiveness. Analyses will be on an intention-to-treat basis. The results will provide more insight into the effects of preventive interventions, in general, and Internet-based early interventions, in particular, on PTSD, in an injured population, during the acute phase after trauma. We will discuss possible strengths and limitations.
DOI: 10.6084/m9.figshare.21829355.v1
title: Early intervention for preventing posttraumatic stress disorder: an Internet-based virtual reality treatment

description: Posttraumatic stress disorder (PTSD) develops in approximately 20% of people exposed to a traumatic event, and studies have shown that cognitive-behavioral therapy (CBT) is effective as a treatment for chronic PTSD. It has also been shown to prevent PTSD when delivered early after a traumatic event. However, studies have shown that uptake of early treatment is generally low, and therefore, the need to provide interventions through other mediums has been identified. The use of technology may overcome barriers to treatment. This paper describes a randomized controlled trial that will examine an early CBT intervention for PTSD. The treatment incorporates virtual reality (VR) as a method for delivering exposure-based elements of the treatment. The intervention is Internet based, such that the therapist and patient will “meet” in a secure online site. This site will also include multi-media components of the treatment (such as videos, audios, VR) that can be accessed by the patient between sessions. Two hundred patients arriving to a Level 1 emergency department following a motor vehicle accident will be randomly assigned to either treatment or control groups. Inclusion criteria are age 18–65, PTSD symptoms 2 weeks posttrauma related to current trauma, no suicidality, no psychosis. Patients will be assessed by telephone by a team blind to the study group, on four occasions: before and after treatment, and 6 and 12 months posttreatment. The primary outcome is PTSD symptoms at follow up. Secondary outcomes include depression and cost effectiveness. Analyses will be on an intention-to-treat basis. The results will provide more insight into the effects of preventive interventions, in general, and Internet-based early interventions, in particular, on PTSD, in an injured population, during the acute phase after trauma. We will discuss possible strengths and limitations.
DOI: 10.6084/m9.figshare.21829358
title: Therapist and client perspectives on the alliance in the treatment of traumatized adolescents

description: Client ratings of the therapeutic alliance are an important predictor of outcome in the treatment of traumatized adolescents and adults, but less is known about the therapists’ perspective. The aim of this study was to investigate how therapists’ ratings relate to the adolescents’ perspective, how individual therapist and adolescent ratings relate to change in symptoms and treatment satisfaction, and whether discrepant alliance perspectives impact treatment outcome. The sample consisted of 156 youth (mean age 15.1, range 10–18), randomized to trauma-focused cognitive behavioral therapy or treatment as usual, and alliance ratings from 62 therapists. Alliance was measured midtreatment with the Therapeutic Alliance Scale for Children, and the factor structure of the two scales was analyzed with exploratory factor analyses. A change in posttraumatic symptoms was assessed with the Child PTSD Symptom Scale (CPSS) and the Clinicial-Administered PTSD Scale for Children and Adolescents (CAPS-CA). Therapist and client perspectives on the alliance were significantly, but moderately, associated (intraclass correlations [ICC]=0.54, <i>p&lt;</i>0.001). Both scales predicted adolescent treatment satisfaction but only the client scale was significantly related to change in symptoms. Factor analyses revealed differences in factor structure with therapist ratings organized around bond and task dimensions and adolescent ratings organized by item valence. Higher therapist ratings compared to adolescent ratings predicted higher residual PTS symptoms. Although adolescent and therapist alliance ratings are moderately associated, results suggest that the ratings are differentially associated with outcomes. These findings, along with results indicating important differences in factor structure, imply that adolescent and therapist ratings are not interchangeable. Future studies should investigate how therapists can improve their judgments of adolescents’ perceptions of the alliance as an overestimation of the quality of the relationship seems to be negatively related to outcome.
DOI: 10.6084/m9.figshare.21829358.v1
title: Therapist and client perspectives on the alliance in the treatment of traumatized adolescents

description: Client ratings of the therapeutic alliance are an important predictor of outcome in the treatment of traumatized adolescents and adults, but less is known about the therapists’ perspective. The aim of this study was to investigate how therapists’ ratings relate to the adolescents’ perspective, how individual therapist and adolescent ratings relate to change in symptoms and treatment satisfaction, and whether discrepant alliance perspectives impact treatment outcome. The sample consisted of 156 youth (mean age 15.1, range 10–18), randomized to trauma-focused cognitive behavioral therapy or treatment as usual, and alliance ratings from 62 therapists. Alliance was measured midtreatment with the Therapeutic Alliance Scale for Children, and the factor structure of the two scales was analyzed with exploratory factor analyses. A change in posttraumatic symptoms was assessed with the Child PTSD Symptom Scale (CPSS) and the Clinicial-Administered PTSD Scale for Children and Adolescents (CAPS-CA). Therapist and client perspectives on the alliance were significantly, but moderately, associated (intraclass correlations [ICC]=0.54, <i>p&lt;</i>0.001). Both scales predicted adolescent treatment satisfaction but only the client scale was significantly related to change in symptoms. Factor analyses revealed differences in factor structure with therapist ratings organized around bond and task dimensions and adolescent ratings organized by item valence. Higher therapist ratings compared to adolescent ratings predicted higher residual PTS symptoms. Although adolescent and therapist alliance ratings are moderately associated, results suggest that the ratings are differentially associated with outcomes. These findings, along with results indicating important differences in factor structure, imply that adolescent and therapist ratings are not interchangeable. Future studies should investigate how therapists can improve their judgments of adolescents’ perceptions of the alliance as an overestimation of the quality of the relationship seems to be negatively related to outcome.
DOI: 10.6084/m9.figshare.21829361
title: The underlying dimensionality of PTSD in the diagnostic and statistical manual of mental disorders: where are we going?

description: There has been a substantial body of literature devoted to answering one question: Which latent model of posttraumatic stress disorder (PTSD) best represents PTSD's underlying dimensionality? This research summary will, therefore, focus on the literature pertaining to PTSD's latent structure as represented in the fourth (DSM-IV, 1994) to the fifth (DSM-5, 2013) edition of the DSM. This article will begin by providing a clear rationale as to why this is a pertinent research area, then the body of literature pertaining to the DSM-IV and DSM-IV-TR will be summarised, and this will be followed by a summary of the literature pertaining to the recently published DSM-5. To conclude, there will be a discussion with recommendations for future research directions, namely that researchers must investigate the applicability of the new DSM-5 criteria and the newly created DSM-5 symptom sets to trauma survivors. In addition, researchers must continue to endeavour to identify the “correct” constellations of symptoms within symptom sets to ensure that diagnostic algorithms are appropriate and aid in the development of targeted treatment approaches and interventions. In particular, the newly proposed DSM-5 anhedonia model, externalising behaviours model, and hybrid models must be further investigated. It is also important that researchers follow up on the idea that a more parsimonious latent structure of PTSD may exist.
DOI: 10.6084/m9.figshare.21829361.v1
title: The underlying dimensionality of PTSD in the diagnostic and statistical manual of mental disorders: where are we going?

description: There has been a substantial body of literature devoted to answering one question: Which latent model of posttraumatic stress disorder (PTSD) best represents PTSD's underlying dimensionality? This research summary will, therefore, focus on the literature pertaining to PTSD's latent structure as represented in the fourth (DSM-IV, 1994) to the fifth (DSM-5, 2013) edition of the DSM. This article will begin by providing a clear rationale as to why this is a pertinent research area, then the body of literature pertaining to the DSM-IV and DSM-IV-TR will be summarised, and this will be followed by a summary of the literature pertaining to the recently published DSM-5. To conclude, there will be a discussion with recommendations for future research directions, namely that researchers must investigate the applicability of the new DSM-5 criteria and the newly created DSM-5 symptom sets to trauma survivors. In addition, researchers must continue to endeavour to identify the “correct” constellations of symptoms within symptom sets to ensure that diagnostic algorithms are appropriate and aid in the development of targeted treatment approaches and interventions. In particular, the newly proposed DSM-5 anhedonia model, externalising behaviours model, and hybrid models must be further investigated. It is also important that researchers follow up on the idea that a more parsimonious latent structure of PTSD may exist.
DOI: 10.6084/m9.figshare.21829364
title: A plea for symptom-based research in psychiatry

description: The significant proportion of patients suffering from subthreshold diagnoses such as partial posttraumatic stress disorder (PTSD) shows that today's diagnostic entities do not fully meet the reality and needs of clinical practice. Moreover, as stated also in the recently announced concept of research domain criteria (RDoC), the use of today's traditional diagnostic systems in psychiatric research does not sufficiently promote an integrative understanding of mental disorders across multiple units of analysis from behavior to neurobiology. Besides RDoC, core symptom-based research concepts have been proposed to bridge the translational gap in psychiatry, but, unfortunately, have not yet become the rule. First, this article briefly reviews literature on subthreshold PTSD (as an example for subthreshold diagnoses) and, second, pleas for and proposes a modified symptom-based research concept in psychiatry. Subthreshold PTSD has, like other subthreshold psychiatric diagnoses, not yet been clearly defined. Diagnostic entities such as subthreshold PTSD are subject to a certain arbitrariness as they are mainly the result of empiricism. This fact stresses the urgent need for neurobiologically-informed psychiatric diagnoses and motivated the here-presented proposal of a symptom-based research concept. As proposed here, and before by other researchers, symptom-based research in psychiatry should refrain from studying patient cohorts compiled according to diagnoses but, instead, should focus on assessing cohorts grouped according to chief complaints or predominant psychopathological symptoms. The linkage of the RDoC concept and symptom-based psychiatric research might probably speed up the definition of biologically or symptom-based psychiatric diagnoses, which might replace the auxiliary constructs of “traditional” diagnoses such as full and subthreshold PTSD, and promote the development of novel psychological and pharmacological treatments.
DOI: 10.6084/m9.figshare.21829364.v1
title: A plea for symptom-based research in psychiatry

description: The significant proportion of patients suffering from subthreshold diagnoses such as partial posttraumatic stress disorder (PTSD) shows that today's diagnostic entities do not fully meet the reality and needs of clinical practice. Moreover, as stated also in the recently announced concept of research domain criteria (RDoC), the use of today's traditional diagnostic systems in psychiatric research does not sufficiently promote an integrative understanding of mental disorders across multiple units of analysis from behavior to neurobiology. Besides RDoC, core symptom-based research concepts have been proposed to bridge the translational gap in psychiatry, but, unfortunately, have not yet become the rule. First, this article briefly reviews literature on subthreshold PTSD (as an example for subthreshold diagnoses) and, second, pleas for and proposes a modified symptom-based research concept in psychiatry. Subthreshold PTSD has, like other subthreshold psychiatric diagnoses, not yet been clearly defined. Diagnostic entities such as subthreshold PTSD are subject to a certain arbitrariness as they are mainly the result of empiricism. This fact stresses the urgent need for neurobiologically-informed psychiatric diagnoses and motivated the here-presented proposal of a symptom-based research concept. As proposed here, and before by other researchers, symptom-based research in psychiatry should refrain from studying patient cohorts compiled according to diagnoses but, instead, should focus on assessing cohorts grouped according to chief complaints or predominant psychopathological symptoms. The linkage of the RDoC concept and symptom-based psychiatric research might probably speed up the definition of biologically or symptom-based psychiatric diagnoses, which might replace the auxiliary constructs of “traditional” diagnoses such as full and subthreshold PTSD, and promote the development of novel psychological and pharmacological treatments.
DOI: 10.6084/m9.figshare.21829373
title: The influence of shame on posttrauma disorders: have we failed to see the obvious?

description: While fear is known to be the dominant affect associated with posttraumatic stress disorder (PTSD), the presence and possible influence of other emotions is less well explored. Recent changes to diagnostic criteria have added anger, guilt and shame alongside fear as significant emotional states associated with the disorder. This article suggests that shame is a frequent, often poorly recognised sequel to trauma, occurring as a result of the meaning the individual places on the traumatic experience and on subsequent interpersonal and environmental events. The article reviews the literature on the socio-interpersonal aspects of the posttraumatic experience with particular emphasis on the emotion of shame as both primary and secondary emotion, in its intrapersonal and interpersonal contexts, and in adaptive and maladaptive forms. The review suggests that posttrauma shame, and maladaptive shame regulation strategies, often manifesting as anger, substance abuse, social withdrawal or depression, may play an important role in the maintenance or exacerbation of the symptoms of PTSD and the development of co-morbidities. The recognition of shame and maladaptive shame regulation strategies in PTSD treatment and management is critical. However, because shame is frequently considered a painful and discomforting emotion, it may fail to be addressed in the therapeutic setting by both client and therapist. Examination of potential shame-related changes in self-concept, close interpersonal relationships and social inclusion are recommended for individuals who have experienced a range of traumas to identify and address any underlying unacknowledged shame.
DOI: 10.6084/m9.figshare.21829373.v1
title: The influence of shame on posttrauma disorders: have we failed to see the obvious?

description: While fear is known to be the dominant affect associated with posttraumatic stress disorder (PTSD), the presence and possible influence of other emotions is less well explored. Recent changes to diagnostic criteria have added anger, guilt and shame alongside fear as significant emotional states associated with the disorder. This article suggests that shame is a frequent, often poorly recognised sequel to trauma, occurring as a result of the meaning the individual places on the traumatic experience and on subsequent interpersonal and environmental events. The article reviews the literature on the socio-interpersonal aspects of the posttraumatic experience with particular emphasis on the emotion of shame as both primary and secondary emotion, in its intrapersonal and interpersonal contexts, and in adaptive and maladaptive forms. The review suggests that posttrauma shame, and maladaptive shame regulation strategies, often manifesting as anger, substance abuse, social withdrawal or depression, may play an important role in the maintenance or exacerbation of the symptoms of PTSD and the development of co-morbidities. The recognition of shame and maladaptive shame regulation strategies in PTSD treatment and management is critical. However, because shame is frequently considered a painful and discomforting emotion, it may fail to be addressed in the therapeutic setting by both client and therapist. Examination of potential shame-related changes in self-concept, close interpersonal relationships and social inclusion are recommended for individuals who have experienced a range of traumas to identify and address any underlying unacknowledged shame.
DOI: 10.6084/m9.figshare.21829376
title: Less is more? Assessing the validity of the ICD-11 model of PTSD across multiple trauma samples

description: In the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), the symptom profile of posttraumatic stress disorder (PTSD) was expanded to include 20 symptoms. An alternative model of PTSD is outlined in the proposed 11th edition of the International Classification of Diseases (ICD-11) that includes just six symptoms. The objectives of the current study are: 1) to independently investigate the fit of the ICD-11 model of PTSD, and three DSM-5-based models of PTSD, across seven different trauma samples (<i>N</i>=3,746) using confirmatory factor analysis; 2) to assess the concurrent validity of the ICD-11 model of PTSD; and 3) to determine if there are significant differences in diagnostic rates between the ICD-11 guidelines and the DSM-5 criteria. The ICD-11 model of PTSD was found to provide excellent model fit in six of the seven trauma samples, and tests of factorial invariance showed that the model performs equally well for males and females. DSM-5 models provided poor fit of the data. Concurrent validity was established as the ICD-11 PTSD factors were all moderately to strongly correlated with scores of depression, anxiety, dissociation, and aggression. Levels of association were similar for ICD-11 and DSM-5 suggesting that explanatory power is not affected due to the limited number of items included in the ICD-11 model. Diagnostic rates were significantly lower according to ICD-11 guidelines compared to the DSM-5 criteria. The proposed factor structure of the ICD-11 model of PTSD appears valid across multiple trauma types, possesses good concurrent validity, and is more stringent in terms of diagnosis compared to the DSM-5 criteria.
DOI: 10.6084/m9.figshare.21829376.v1
title: Less is more? Assessing the validity of the ICD-11 model of PTSD across multiple trauma samples

description: In the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), the symptom profile of posttraumatic stress disorder (PTSD) was expanded to include 20 symptoms. An alternative model of PTSD is outlined in the proposed 11th edition of the International Classification of Diseases (ICD-11) that includes just six symptoms. The objectives of the current study are: 1) to independently investigate the fit of the ICD-11 model of PTSD, and three DSM-5-based models of PTSD, across seven different trauma samples (<i>N</i>=3,746) using confirmatory factor analysis; 2) to assess the concurrent validity of the ICD-11 model of PTSD; and 3) to determine if there are significant differences in diagnostic rates between the ICD-11 guidelines and the DSM-5 criteria. The ICD-11 model of PTSD was found to provide excellent model fit in six of the seven trauma samples, and tests of factorial invariance showed that the model performs equally well for males and females. DSM-5 models provided poor fit of the data. Concurrent validity was established as the ICD-11 PTSD factors were all moderately to strongly correlated with scores of depression, anxiety, dissociation, and aggression. Levels of association were similar for ICD-11 and DSM-5 suggesting that explanatory power is not affected due to the limited number of items included in the ICD-11 model. Diagnostic rates were significantly lower according to ICD-11 guidelines compared to the DSM-5 criteria. The proposed factor structure of the ICD-11 model of PTSD appears valid across multiple trauma types, possesses good concurrent validity, and is more stringent in terms of diagnosis compared to the DSM-5 criteria.
DOI: 10.5281/zenodo.3274392
title: Binary black-hole simulation SXS:BBH:2159

description: Simulation of a black-hole binary system evolved by the SpEC code.
DOI: 10.5281/zenodo.3274393
title: Binary black-hole simulation SXS:BBH:2090

description: Simulation of a black-hole binary system evolved by the SpEC code.
DOI: 10.5281/zenodo.3274394
title: Binary black-hole simulation SXS:BBH:2148

description: Simulation of a black-hole binary system evolved by the SpEC code.
DOI: 10.5281/zenodo.3275306
title: Binary black-hole simulation SXS:BBH:0948

description: Simulation of a black-hole binary system evolved by the SpEC code.
DOI: 10.5281/zenodo.3275314
title: Binary black-hole simulation SXS:BBH:0873

description: Simulation of a black-hole binary system evolved by the SpEC code.
DOI: 10.5281/zenodo.3275315
title: Binary black-hole simulation SXS:BBH:0668

description: Simulation of a black-hole binary system evolved by the SpEC code.
DOI: 10.5281/zenodo.3275316
title: Binary black-hole simulation SXS:BBH:0861

description: Simulation of a black-hole binary system evolved by the SpEC code.