Linas A. Bieliauskas

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The cognitive assessment protocol of the Alzheimer's Disease Cooperative Study (ADCS) was designed to evaluate the reliability and validity of cognitive assessment measures that might be valuable additions to the Alzheimer's Disease Assessment Scale (ADAS) or other concise batteries used in antidementia drug trials. As part of an overall ADCS protocol to(More)
Frontal, limbic and temporal regions of the brain important in emotion perception and executive functioning also have been implicated in the etiology and maintenance of depression; yet, the relationships among these topics remain poorly understood. The present study evaluated emotion perception and executive functioning among 21 depressed women and 20(More)
This article addresses key topics in cognitive aging, intending to provide the reader with a brief overview of the current state of research in this growing, multidisciplinary field. A summary of the physiological changes in the aging brain is provided as well as a review of variables that influence cognitive abilities in older age. Normal aging(More)
Mild traumatic brain injury (mTBI) is not uncommon among Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) veterans, and many individuals within this group report lingering cognitive difficulties following their injury. For Department of Veterans Affairs clinicians, an accurate assessment of cognitive symptoms is important in providing(More)
At present, there is poor accuracy in assessing cognitive and vegetative symptoms in depression using clinician or self-rated measures, suggesting the need for development of standardized tasks to assess these functions. The current study assessed the psychometric properties and diagnostic specificity of a brief neuropsychological screening battery designed(More)
BACKGROUND Several small studies have found a high automobile crash rate for drivers with Alzheimer disease (AD) compared with unaffected elderly drivers, prompting the suggestion that the diagnosis of AD mandate cessation of driving. OBJECTIVES To compare automobile crash and violation rates of a large number of patients with AD with appropriately(More)
BACKGROUND/AIMS Prior studies have demonstrated neuropsychological abnormalities in chronic hepatitis C (CHC) patients even with mild fibrosis. The aim of this study was to determine the frequency, type, and severity of cognitive impairment in a large group of CHC patients with advanced fibrosis. METHODS Ten validated neuropsychological tests were(More)
This study examined sex differences in categorization of facial emotions and activation of brain regions supportive of those classifications. In Experiment 1, performance on the Facial Emotion Perception Test (FEPT) was examined among 75 healthy females and 63 healthy males. Females were more accurate in the categorization of fearful expressions relative to(More)
The possible relation of two stressor types (life events and illness experience) to three sets of attitudes (personal life satisfaction, self-assessed coping, and satisfaction with treatment personnel/facilities) was examined within a sample of 97 outpatients having multiple sclerosis. In addition, potential moderators of hypothesized relationships were(More)
Although many extant normative data sets for standardized neuropsychometric instruments feature adjustments for subject variables, there are reasons to believe that improvements in interpretive accuracy that result from such adjustments are less than optimal. In particular, several theoretical considerations suggest that years of formal education may be(More)