Aging effects on memory encoding in the frontal lobes

Functional magnetic resonance imaging (fMRI) was used to compare frontal-lobe activation in younger and older adults during encoding of words into memory. Participants made semantic or nonsemantic judgments about words. Younger adults exhibited greater activation for semantic relative to nonsemantic judgments in several regions, with the largest activation in the left inferior frontal gyrus. Older adults exhibited greater activation for semantic judgments in the same regions. but the extent of activation was reduced in left prefrontal regions. In older adults, there was a significant association between behavioral tests of declarative and working memory and extent of frontal activation. These results suggest that age-associated decreases in memory ability may be due to decreased frontal-lobe contributions to the initial encoding of experience.     

Effects of emotion on oxytocin,prolactin, and ACTH in women

Research on both non-human mammals and humans has raised interest in the role that oxytocin may play in human attachment and attachment-related emotions. This study examined changes in plasma oxytocin, prolactin, and ACTH concentrations in response to laboratory-induced positive and negative emotions related to close, interpersonal relationships. Participants were 32 female volunteers recruited from university communities. During positive emotion induction, oxytocin decreased over time (F(1,3) = 4.41, p < 0.007), prolactin increased (F(1,3) = 4.80, p < 0.004) and ACTH remained constant. During negative emotion induction, prolactin levels increased (F(1,3) = 2.81, p < 0.05), ACTH decreased only after the induction terminated (F(1,3) = 4.02, p < 0.01) and oxytocin remained constant. While oxytocin decreased during positive emotion, this finding contrasted previous research that showed decreases in response to negative emotion. In conclusion, plasma oxytocin levels were not reliably altered by positive or negative emotion induction. While prolactin and ACTH were expected to decrease over time due to diurnal variation, they instead either increased or remained level during emotion induction, or decreased only after the induction. Overall, the degree of change in circulating hormones in response to happy and sad emotions was very small and possibly not functionally significant.     

At the crossroads: managed mental health care,the ethics code,and ethnic minorities

Mental health clinicians are facing an increasing number of ethical problems related to the delivery of managed mental health care services to ethnic minorities. The authors argue that (a) economic pressures have led to the development of the managed health care movement; (b) the combination of such economic pressures and the development of that managed care movement have influenced the promulgated ethical standards of the American Psychological Association; and (c) those influences may have a negative impact on the mental health services available to ethnic minority individuals and communities. The authors review some of the specific potential threats to mental health services for minorities in the face of such health management policy and psychologists' professional standards.     

Psychometric Properties of the Social Phobia and Anxiety Inventory, the Social Anxiety Scale for Adolescents, the Fear of Negative Evaluation Scale, and the Social Avoidance and Distress Scale in an Adolescent Spanish-Speaking Sample

The relationship among several social anxiety measures and a semistructured interview in an adolescent Spanish-speaking sample is examined. Construct validity and test-retest reliability were tested. A principal axis factor analysis was also explored. Results revealed good construct validity and alpha coefficients for the assessment instruments such as the Social Phobia and Anxiety Inventory (SPAI), the Social Anxiety Scale for Adolescents (SAS-A), the Fear of Negative Evaluation Scale (FNES) and the Social Avoidance Distress Scale (SADS). Among these, data strongly support the validity of the Social Phobia and Difference measures of the SPAI and Total SAS-A score as assessment measures in the adolescent population even in non-American cultures and languages. Furthermore, results appear to support the presence of a single higher-order dimension, social anxiety, as measured by the instruments used in this study.     

Generalizing treatment effects of functional family therapy: Three replications

Abstract

Functional Family Therapy with status delinquents has undergone careful scrutiny in well designed studies that included random assignment, realistic comparison treatment programs, formally trained therapists, and reasonable follow-up periods. The current report describes three replications in which FFT has been extended to new populations, has utilized less formally trained therapists, and has been applied in new treatment contexts. Taken together the replications provide important support for the generalizability of FFT across client and therapist populations.     

The Bible,The Bottle And The Knife: Religion as a Mode of Resisting Colonialism for U Dhammaloka

While those who sought solidarity between Asians and Europeans in the colonial era often ended up replicating the colonial divisions they had hoped to overcome, the interstitial position of working class and beachcomber Buddhist monks allowed for more substantive modes of solidarity and critique. U Dhammaloka offered a sophisticated critique of British colonialism in its religious, cultural and material modes, but opted to focus his efforts on Buddhism as an avenue of resistance because it offered him a means of connection, like that which Leela Gandhi has identified as a ‘politics of friendship.’     

Number of events and reliability in fMRI

Relatively early in the history of fMRI, research focused on issues of power and reliability, with an important line concerning the establishment of optimal procedures for experimental design in order to maximize the various statistical properties of such designs. However, in recent years, tasks wherein events are defined only a posteriori, on the basis of behavior, have become increasingly common. Although these designs enable a much wider array of questions to be answered, they are not amenable to the tight control afforded by designs with events defined entirely a priori, and little work has assessed issues of power and reliability in such designs. We demonstrate how differences in numbers of events—as can occur with a posteriori event definition—affect reliability, both through simulation and in real data.     

Modality Effects and the Development of the Word Length Effect in Children

Two experiments investigated the development of the word length effect in children aged 4 to 10 years, comparing auditory and visual stimuli. The question addressed was whether word length effects emerged earlier with auditory presentation or visual presentation, or whether they emerged at the same age regardless of presentation modality. Results provided evidence that word length effects emerge earlier with visual than auditory presentation. The implication of our results is that with visual presentation, 4-year-olds engage in some form of verbalisation strategy that involves obtaining phonological representations of picture names and mapping them on to articulatory output plans. This strategy is clearly verbal in nature, but is not necessarily characterised as cumulative verbal rehearsal.