Please select the eligibility criteria that correspond to the clinical trial below.
Title: The Effects of Mental Activity and Exercise on Cognitive Function in Older Adults Who Self-Report a Recent Decline in Memory or Thinking
Brief Summary: The primary objective of this study is to conduct a randomized, controlled trial to determine whether engaging in mental activity or exercise, either alone or in combination, improves cognitive function in non-demented, inactive older adults who self-report a recent decline in memory or thinking. In addition, we, the researchers at the University of California, San Francisco, plan to seek funding to follow subjects over time to determine whether these interventions are associated with changes in rate of cognitive decline or risk of dementia after the intervention period has ended.


Options:
A: Inclusion Criteria:

* community-dwelling volunteers aged 60 years or older
* without dementia
* MMSE=26 or above

Exclusion Criteria:

* if they had known dementia or significant cognitive impairment accompanied by dysfunction of daily living activities;
* had 6 years of education or under;
* were illiterate
* were unavailable during the testing and intervention periods of the study;
* had severe losses in vision or hearing; had major neurological or psychiatric illness history including any history of stroke, transient ischemic attack or traumatic brain injury;
* had a medication history which might affect on cognitive function such as acetylcholinesterase inhibitor or memantine
* had medical problems such as thyroid, liver and renal disease;
* had a significan structural abnormalities on their baseline brain MRI.
B: Inclusion Criteria:

* Age 65 or older
* Mini-Mental State Examination (MMSE) score 23 or greater
* Vision scored greater than 20/50
* Minimal dependence in hygiene, bathing, and dressing

Exclusion Criteria:

* Significant decline in cognitive skills, physical abilities, or functional independence
* Inability to complete study activities as evidenced by MMSE and vision scores lower than Inclusion Criteria requirement
* Diagnosis of Alzheimer's disease
* Stroke in previous 12 months
* Cancer with limited life expectance
* Current chemotherapy or radiation treatment
* Communication problems
* Planned move from study area
* Scheduling conflicts that would preclude participation in study activities
* Prior involvement in similar cognitive training studies
C: Inclusion Criteria:

* diagnosis of chronic insomnia
* able to use a home personal computer
* have healthy dominant hand functioning
* Hebrew speakers

Exclusion Criteria:

* have any significant visual or hearing impairment
* have any significant medical, neurological or psychiatric illness that might bring about cognitive change
* have sleep disorders other than insomnia
* have any significant medical disease (including cancer, diabetes, liver, kidney, heart or lung disease)
* alcoholism or other drug abuse
* taking any medication known to affect central nervous system functioning other than sleeping pills
* historical evidence suggesting significant psychiatric conditions such as depression, psychosis or neurologic disease
D: Inclusion Criteria:

* Age \> 64
* Self-report of recent decline in memory or thinking
* Low/no physical activity (\<2 days/week for \<30 minutes/session of moderate intensity activity over past 3 months)
* Low/no computer mental activity (\<2 days/week for \<30 minutes/session over past 3 months)
* Fluent in English
* Willingness to perform study activities

Exclusion Criteria:

* Evidence of dementia (based on self-report, physician diagnosis or score \< 19 on Telephone Interview for Cognitive Status)
* Significant central nervous system disorder (Parkinson's disease, multiple sclerosis, ALS \[Lou Gerig's disease\])
* Major, current psychiatric disorder (major depressive disorder, schizophrenia, bipolar disorder, post-traumatic stress disorder, obsessive-compulsive disorder, psychiatric hospitalization in past 20 years)
* Major central nervous system event (stroke, transient ischemic attack/mini-stroke, seizure, or traumatic brain injury that has left a residual deficit)
* Significant heart disease (severe congestive heart failure, severe aortic stenosis, cardiac arrest, uncontrolled angina)
* Significant lung disease (requiring supplemental oxygen or oral or injected steroids)
* Other condition that would make participation potentially dangerous (cancer requiring treatment in past 3 years, severe arthritis, history of cardiac defibrillation, dialysis)
* Lack of physician approval
* Severe hearing or visual impairment
* History of learning disability
* Starting prescription medication to enhance cognitive function (e.g., memantine, aricept)
* Dependent in any basic activity of daily living (eating, dressing, bathing, toileting, getting out of bed/chair)
* History of alcohol abuse/heavy alcohol use
* History of drug abuse/heavy drug use
* Currently enrolled in another research study
* Fibromyalgia or tremor severe enough to prevent use of a computer mouse
* Planning to travel \> 4 exercise class days during study period
* Behaviors during screening or baseline visit that, in the judgement of research staff, are likely to present significant problems (e.g., uncooperative, anger, inappropriate physical contact)
* Unable to perform neuropsychological evaluations
* Unable to complete consent process

Answer: D