CT scan and neuropsychological correlates of Alzheimer's disease and Huntington's disease

"Cortical" and "subcortical" dementia syndromes differ in areas of primary neuropathology and clinical characteristics. Conventional CT scan interpretation, visual inspection of pictures, has not been useful in studying dementia. Recent studies of the digitally stored CT attenuation values have found systematic variations with normal aging and aphasia subtypes. In this study of numerical CT scan information in four Alzheimer's Disease and two Huntington's Disease patients, a double dissociation of frontal and temporal lobe density values was found, and a significant correlation was found between left temporal lobe density and verbal ability measures in the Alzheimer's Disease patients.     

Developmental differences in the allocation of processing capacity

Recently psychologists have formulated a comprehensive view of attention involving allocation of processing capacity. Although developmental changes in processing capacity have been proposed as one source of age differences in certain cognitive skills, there has been little systematic investigation of this hypothesis. In the present study, second and sixth graders and adults (8, 12, and 20 years of age, respectively) performed a letter-matching task (primary task) concurrently with an auditory detection task (secondary task). Changes in reaction time in the secondary task as a function of manipulations of the primary task were used to estimate capacity allocation to the primary task. Primary task variables included stage of processing (alerting, encoding, rehearsing, responding) and matching condition (physical-identity vs name-identity matching). Age differences in secondary task performance were found to be related to stage of processing but not to matching condition. Earlier stages of the letter match task (alerting, encoding) required somewhat more capacity allocation in younger subjects. Later stages (rehearsing, responding) made substantially higher demands on capacity in children. Capacity allocation may be an important cognitive variable mediating developmental differences in basic information processing skills, and may underlie age trends found in performance of certain complex cognitive tasks.     

Effects of altering outcome expectancies on pigeons' delayed conditional discrimination performance

An outcome-expectancy mediation theory of learning was tested in a series of transfer experiments with pigeons. The principal technique employed was a delayed two-choice conditional discrimination in which the subject's correct choice yielded a food reward on one kind of trial and a feedback tone on the other. According to the theory, this task engenders two-link mediational chains in that each conditional cue controls a particular outcome expectancy (S-E link) and the expectancy, in turn, cues a specific choice response (E-R link). Relative to the hypothetical mediators established by preceding training, transfer problems required either the same mediational chains, the alteration of one link in each chain, or the alteration of both links in both chains for optimal performance. The results of four separate transfer experiments confirmed detailed theoretical predictions, including that of an unusual nonmonotonic transfer effect. The relation of the present theory to earlier mediation theories is discussed.     

Mental health counselling in the Black American Church: reflections and recommendations from counsellors serving in a counselling ministry

The goal of this study was to examine the relationship between “The Black Church”, the mental health needs of its members, and addressing those needs from the perspective of counsellors within the church. Four in-depth interviews were conducted with members of the mental health counselling team at one large, African American-serving church in the Midwest to explore their thoughts about their church pastor’s desire to expand their current ministry to a fully operating counselling centre. The findings suggest that “the Black Church” not only has a role and responsibility in addressing the mental health needs of African Americans within and outside of the church but can also use religiosity as a facilitator rather than a barrier to mental health service use among African Americans.     

Weight and health status of inner city African American children: Perceptions of children and their parents

Poor socioeconomic status and African American (AA) ethnicity contribute to an increased risk of obesity for many inner city children. One hundred and forty six AA children and 108 AA parents attending an inner city health fair completed surveys regarding perceptions of their own (or their child's) weight and the impact of weight on health. The children were measured and their body mass indexes were calculated. Thirty-seven percent of the child respondents (n = 52) were at risk of overweight or overweight; of these, 67% perceived themselves as normal weight, and 77% thought their weight was healthy. Weighing more was felt to be healthy by 17% of children and 29% of parents. Of 39 parents whose children were at risk of overweight or overweight, 68% felt their child's weight was normal and 80% thought it was healthy. These results suggest that inner city AA children and their parents often do not recognize being overweight or the health implications of being overweight.     

Psychological Trauma,Christ’s Passion,and the African American Faith Tradition

This article argues that Christ’s passion/crucifixion functioned within the African American psyche as a religious narrative and symbol that uniquely addressed the severe trauma they underwent during the Middle Passage and slavery by enabling them to experience the presence of God in the depths of extreme suffering. Christ’s passion/crucifixion mirrored their experience of racial oppression and, thereby, provided a critique of the system and actors that perpetuated it. The Spiritual “Were You There?” is interpreted in this light. This correspondence between the African American’s historical experience and the narrative symbol of Christ’s passion/crucifixion helps explain their conversion to Christianity.     

Factor Structure of the Parenting Scale in a Low-Income African American Sample

We evaluated the relative goodness-of-fit of two factor structures of the Parenting Scale (Arnold, O'Leary, Wolf, {&} Acker, 1993) among two samples of low-income African American families. Participants included 271 mother-child dyads from urban and rural areas in the southern and southeastern US, who completed the Parenting Scale along with other measures of parenting style and dyadic relationship. Confirmatory Factor Analyses (CFA) indicated that a two-factor solution, comprising Laxness and Overreactivity dimensions, was the better fit to the data. Some direct evidence for convergent validity was provided by a correlation between the Laxness factor of the Parenting Scale and the Firm/Lax Control subscale of the Children's Report of Parenting Behavior Inventory (CRPBI). Results are discussed in term of Brody and Flor's (1998) “no nonsense” parenting style.     

Exploring Risk in Early Adolescent African American Youth

Two studies were conducted to explore the degree to which single- and multiple-risk profiles were evident in samples of African American early adolescents in low-income inner-city, rural, and suburban schools. Study 1 examined early adolescent risk status (i.e., single, multiple) in relation to later adjustment in a representative sample (70% European American, 30% African American). Youth who experienced a single risk in early adolescence had moderately increased levels of school dropout and criminal arrests, whereas youth with multiple risks (i.e., combination of 2 or more risks) had significantly increased levels of school dropout, criminal arrests, and teen parenthood. Study 2 examined the extent to which single- and multiple-risk profiles were evident in cross-sectional samples of African American youth from low-income inner-city and rural areas. About one fourth of both the inner-city and rural samples of African American youth were composed of youth in the single-risk category. A significantly greater proportion of boys in the inner-city sample (20%) than boys in the rural sample (13%) experienced multiple risks. Girls across the rural and inner-city samples did not differ in terms of risk. Overall, more than 60% of African American youth in these two low-income samples did not evidence risk for later adjustment problems. Implications for research and intervention are discussed.     

Authoritarianism and PoliticalSocialization in the Context of the Arab-Israeli Conflict

This study explored the hypothesis that authoritarianism is negatively associated with peace supportiveness. A sample of 197 Jewish/Israeli university students responded to a questionnaire that included items on attitudes toward the Middle East peace process as well as a personality measure. The results confirmed the hypothesis: Individuals who were less supportive of the peace process were more authoritarian conformists than were supporters of the process. A significant association between religiosity and attitudes toward the peace process was also found; the split between peace supporters and non-supporters corresponded roughly, though not exactly, to the split between religious and non-religious. The pro-peace individual is generally non-religious, less authoritarian conformist, and less aggressive. Hence, the social cognitions studied—beliefs about the peace process—may be group beliefs. Certain characteristics of the groups in question, such as socialization practices and social structure, may account for the personality features that covaried with the beliefs. The data showing that peace attitudes, religiosity, and certain personality traits form one entity might thus be marshalled in discussing the identity issue and applied to other scenes in contemporary conflicts.     

Women and the Art of Peacemaking: Data from Israeli-Palestinian Interactive Problem-Solving Workshops

Are women “natural” peacemakers? If so, is this because of natural inclinations to avoid conflict or to engage in tough discussions? Are there particular skills in which women excel that make them more likely than their male counterparts to be able to build relational bridges, to facilitate negotiations, and to reduce tensions? After a review of the literature on gender differences in such skills, a systematic comparison of interaction quality is made between two Israeli-Palestinian interactive problem-solving workshops that differed only in gender composition. A third Israeli-Palestinian workshop that involved female political elites is also examined for subsequent changes in the conflict relationship or for changes in political activity. The implications of different repertoires of skills for altering political processes are discussed.