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<jats:p> There has been limited research on the prevalence of personality disorders in the aged. No studies have documented the extent of personality disorders in community-dwelling elderly with the use of a structured scale specifically designed to detect personality disorders and anchored to DSM-III-R criteria. One hundred male and 100 female community-living elderly (mean age, 72.1 years) were administered the Structured Interview for Disorders of Personality-Revised to compare prevalence rates for specific personality disorders with those of young adults (mean age, 41.7 years) and to identify demographic variables associated with personality disorders in the elderly. Results indicate a tendency toward fewer personality disorders in older than young adults, no differences in the frequency of personality disorders between male and female elderly, and significantly more prior mental health consultations in elderly with personality disorders than in elderly without these disorders. Aging processes and methodologic issues that could accountfor differences in personality disorder distribution between young and older adults are discussed. Recommendations for future research are outlined. </jats:p>

<jats:p> Although confabulations and delusions are observed in Alzheimer’s disease, the relationship between the 2 has not been fully investigated. This study involved 50 patients with Alzheimer’s disease and 10 healthy participants. After the patients were divided into delusional and nondelusional groups, confabulations and cognitive function were assessed. No confabulations appeared in the healthy participants, and only patients with Alzheimer’s disease showed confabulations. The delusional group produced more confabulations on episodic subjects than on semantic subjects. There was a correlation between cognitive impairment and confabulations in semantic memory. These findings suggest that different mechanisms are involved in confabulations between semantic and episodic memories. </jats:p>

<jats:p> Patients with mild cognitive impairment (MCI) frequently experience significant depressive symptomatology and report cognitive disturbances. To date, no studies have examined the relationship between MCI patients' neuropsychologic functioning, self-reported depressive symptoms, and self-reported cognitive difficulties. In this study, 82 MCI patients completed a comprehensive neuropsychological evaluation that included the Beck Depression Inventory (BDI). A subset of 41 patients and informants also completed a measure of cognitive difficulties. Poorer memory functioning was associated with fewer self-reported depressive symptoms and fewer cognitive complaints. </jats:p>

<jats:p> Previous findings that older drivers engage in strategic self-regulatory behaviors to minimize perceived safety risks are primarily based on survey reports rather than actual behavior. This study analyzed in-car video recording of naturalistic driving of 18 patients with Alzheimer disease (AD) and 20 age-matched controls in order to (1) characterize self-regulatory behaviors engaged by older drivers and (2) assess how behaviors change with cognitive impairment. Only participants who were rated “safe” on a prior standardized road test were selected for this study. Both groups drove primarily in environments that minimized the demands on driving skill and that incurred the least risk for involvement in major crashes. Patients with AD displayed further restrictions of driving behavior beyond those of healthy elderly individuals, suggesting additional regulation on the basis of cognitive status. These data provide critical empirical support for findings from previous survey studies indicating an overall reduction in driving mobility among older drivers with cognitive impairment. </jats:p>