Context processing in older adults: evidence for a theory relating cognitive control to neurobiology in healthy aging.

A theory of cognitive aging is presented in which healthy older adults are hypothesized to suffer from disturbances in the processing of context that impair cognitive control function across multiple domains, including attention, inhibition, and working memory. These cognitive disturbances are postulated to be directly related to age-related decline in the function of the dopamine (DA) system in the prefrontal cortex (PFC). A connectionist computational model is described that implements specific mechanisms for the role of DA and PFC in context processing. The behavioral predictions of the model were tested in a large sample of older (N = 81) and young (N = 175) adults performing variants of a simple cognitive control task that placed differential demands on context processing. Older adults exhibited both performance decrements and, counterintuitively, performance improvements that are in close agreement with model predictions.     

Discrepancies among mother,child, and teacher reports: Examining the contributions of maternal depression and anxiety

The relationship between maternal affective symptomatology and discrepancies in maternal reports of child symptoms, relative to teacher and child reports, was evaluated in a community sample of 188 children ages 9–12 years. Mothers, teachers, and children were administered a structured interview about child psychopathology. In general, mothers reported more child behavior problems than children and teachers, regardless of maternal symptomatology. However, maternal affective symptoms were associated with discrepancies between mothers' and daughters' reports and between mothers' and teachers' reports of girls' externalizing symptoms. Furthermore, mothers who reported high levels of both anxiety and depressive symptomatology tended to report a large number of symptoms that were not confirmed by either their daughters or teachers. Findings are discussed as possible evidence of the role of maternal affective symptomatology in both actual increases in child symptomatology and maternal reporting distortions. Although maternal depressive and anxiety symptoms shared variance in reporting discrepancies, only anxiety explained unique variance. Consistent with previous studies, cross-informant agreement was modest to moderate (r= .16 to .50) and all informants reported more behavior problems in boys than in girls. This work was undertaken with the support of National Institute of Mental Health Grants MH43909 and MH46717.     

Womanist Identity and Mental Health

The authors explored the relationship between Helms's “womanist identity” attitudes and the mental health of Black and White women. Results showed that Black and White women have different patterns of responses to both womanist and mental health scales. For White women in the sample, Immersion-Emersion and, to a lesser extent, Encounter attitudes were related to 7 types of psychological symptomatology. For Black women, no such relationship between womanist attitudes and mental health was found.     

Evaluating the effectiveness of workshop interventions on contraceptive use among first-year college students

This study tested the effectiveness of 4 interventions designed to affect contraceptive knowledge, attitudes, and use among first-year Syracuse University students in New York State in the US. Pre- and post-tests obtained data on demographic characteristics, sexual behavior, contraceptive knowledge, sexual opinions, contraceptive attitudes, and contraceptive progress on a 5-step scale. Group 1 (79 students) received contraceptive information (CI) only. Group 2 (76) received CI and a cognitively oriented intervention. Group 3 (73) received CI and an experience-oriented intervention. Group 4 (77) received a combined cognitively and experience-oriented intervention with CI. The control group included 57 people. 78% on the pretest, and 84% on the post-test, had engaged in sexual intercourse for the first time in high school. 200 indicated previous intercourse in the past 3 months. Groups varied significantly in their knowledge, beliefs, and practices. All groups had greater contraceptive knowledge than control groups. Greater behavior beliefs about contraceptive use occurred in Groups 1 and 2. Groups 3 and 4 showed greater increases in positive attitudes toward use. All intervention students showed greater increases in positive attitudes toward a contraceptive process. Greater increases in the intention to use birth control occurred in Groups 3 and 4. Groups 2, 3, and 4 showed greater increases in reported use of birth control. Group 4 intervention was the most effective for males. Females were influenced by all interventions. Findings affirm the importance of including attitudinal components in sexuality and contraception workshops.     

Infanticide and the Right to Life

Michael Tooley defends infanticide by analysing ' A has a right to X' as roughly synonymous with 'If A desires X , then others are under a prima facie obligation to refrain from actions that would deprive him [or her] of it.' An infant who cannot conceive of himself or herself as a continuing subject of experiences cannot desire to continue existing. Hence, on Tooley's analysis, killing the infant is not impermissible, for it does not go against any of the infant's desires. However, Tooley's argument in support of his analysis seems to justify, instead, a slightly more subtle analysis—namely, ' A has a right to X ' is roughly extensionally equivalent with 'Unless A expresses his or her desire that not- X , then others are under a prima facie obligation to refrain from actions that would deprive him or her of X .' But given this analysis, the infant's purported lack of any capacity to conceive of himself or herself as a continuing subject of experiences implies that we cannot be released from any duty that we might have not to harm him or her. In short, Tooley's argument in support of his analysis actually implies that infanticide may well be impermissible.     

Environmental stress and blood glucose change in insulin-dependent diabetes mellitus

Blood glucose (BG) response to psychological stress in insulin-dependent diabetes mellitus (IDDM) patients has not been firmly established. We report a study designed to address the gaps and methodological difficulties reviewed. Subjects with IDDM were exposed to two sessions (12 weeks apart) of two 20-min standardized stressors (active and passive) and a control condition administered in counterbalanced order. To measure BG response, subjects were connected to a glucose/insulin infusion system providing continuous BG measurement. Mood checklist measures were obtained at prestressor, poststressor, and recovery periods. During the first session of testing, the active stressor was associated with significantly more absolute change in BG response than the passive stressor. Results also indicate that IDDM subjects' BG response to this active stressor was idiosyncratic but significantly reliable over time.