Differential effects of aging on processes underlying task switching

In this study, we used event-related brain potentials (ERPs) to examine the effects of aging on processes underlying task switching. The response time data revealed an age-related increase in mixing costs before controlling for general slowing and no effect of aging on switching costs. In the cue-locked epoch, the ERP data revealed little effect of age on the parietal P3 related to cue encoding, an age-related decrease in parietal activity related to cue retrieval, and an age-related increase in the amplitude of the parietal and frontal activity related to task set configuration and rule mapping. In the target-locked epoch, there was differential neural recruitment in younger and older adults in response to task mixing. These data are consistent with the idea that older adults may not fully implement task set before onset of the target stimulus.     

Semantic involvement in reading aloud: evidence from a nonword training study

The current research uses a novel methodology to examine the role of semantics in reading aloud. Participants were trained to read aloud 2 sets of novel words (i.e., nonwords such as bink): some with meanings (semantic) and some without (nonsemantic). A comparison of reading aloud performance between these 2 sets of novel words was used to provide an indicator of the importance of semantic information in reading aloud. In Experiment 1, in contrast to expectations, reading aloud performance was not better for novel words in the semantic condition. In Experiment 2, the training of novel words was modified to reflect more realistic steps of lexical acquisition: Reading aloud performance became faster and more accurate for novel words in the semantic condition, but only for novel words with inconsistent pronunciations. This semantic advantage for inconsistent novel words was again observed when a subset of participants from Experiment 2 was retested 6-12 months later (in Experiment 3). These findings provide support for a limited but significant role for semantics in the reading aloud process.     

STRUCTURES OF EVIL ENCOUNTERED IN PASTORAL COUNSELING

This essay explores some relationships between social structures or systems and the internal psychological structures or systems of individuals. After defining evil, pastoral counseling, and structures or systems, I present examples of persons affected by social systems of power who have sought counseling. I present a form of counseling known as Internal Family System Therapy (IFS) and show with an extended example how I have worked with clients using this approach. In this process the client is guided to use “Self‐leadership” in healing and transforming inner conflict between various subpersonalities or “parts.” I then compare the IFS approach to one used by mediators in community conflict transformation and peacebuilding.     

Self‐efficacy as a moderator of negative and positive self‐fulfilling prophecy effects: mothers' beliefs and children's alcohol use

This research examined two issues relevant to self‐fulfilling prophecies. First, it examined whether children's risk for alcohol use, as indicated by their self‐efficacy to refuse alcohol from peers, moderated their susceptibility to negative and positive self‐fulfilling prophecy effects created by their mothers. Second, it explored behavioral mediators that could be involved in the self‐fulfilling process between mothers and children. Longitudinal data from 540 mother–child dyads indicated that (1) low self‐efficacy children were more susceptible to their mothers' positive than negative self‐fulfilling effects, whereas high self‐efficacy children's susceptibility did not vary, (2) mothers' global parenting and children's perception of their friends' alcohol use partially mediated mothers' self‐fulfilling effects, and (3) these mediators contributed to low self‐efficacy children's greater susceptibility to positive self‐fulfilling prophecy effects. The power of self‐fulfilling prophecies, their link to social problems, and the potential for mothers' favorable beliefs to have a protective influence on adolescent alcohol use are discussed. Copyright © 2007 John Wiley & Sons, Ltd.     

Unattended emotional intonations modulate linguistic prosody processing

Prosody or speech melody subserves linguistic (e.g., question intonation) and emotional functions in speech communication. Findings from lesion studies and imaging experiments suggest that, depending on function or acoustic stimulus structure, prosodic speech components are differentially processed in the right and left hemispheres. This direct current (DC) potential study investigated the linguistic processing of digitally manipulated pitch contours of sentences that carried an emotional or neutral intonation. Discrimination of linguistic prosody was better for neutral stimuli as compared to happily as well as fearfully spoken sentences. Brain activation was increased during the processing of happy sentences as compared to neutral utterances. Neither neutral nor emotional stimuli evoked lateralized processing in the left or right hemisphere, indicating bilateral mechanisms of linguistic processing for pitch direction. Acoustic stimulus analysis suggested that prosodic components related to emotional intonation, such as pitch variability, interfered with linguistic processing of pitch course direction.     

Comparative validity of the Shedler and Westen Assessment Procedure-200

A predominant dimensional model of general personality structure is the five-factor model (FFM). Quite a number of alternative instruments have been developed to assess the domains of the FFM. The current study compares the validity of 2 alternative versions of the Shedler and Westen Assessment Procedure (SWAP-200) FFM scales, 1 that was developed on the basis of items identified by J. Shedler and D. Westen (2004) and 1 that used items identified by R. R. McCrae, C. E. Lokenhoff, and P. T. Costa (2005). The comparative validity of both measures was examined in a sample of persons who evidenced personality-related problems in living (N = 94). The McCrae et al. Neuroticism, Agreeableness, and Openness scales were superior to their respective Shedler and Westen scales. Both research teams developed comparably valid Extraversion and Conscientiousness scales. Implications of the results for future SWAP-200 research are discussed.     

The Strengths and Difficulties Questionnaire: the self-report version in American urban and suburban youth

This study examined the factor structure of the Strengths and Difficulties Questionnaire (SDQ) in urban inner-city and suburban general population samples of American youth. The SDQ was administered to 4,661 predominantly minority urban youth (mean age = 13.0 years, SD = 2.02) and 937 predominantly Caucasian suburban youth (mean age = 14.0 years, SD = 1.56). The authors examined SDQ factor structure using structural equation modeling techniques. The fit for the 5-factor models in both samples was very good (comparative fit index = .96-.97). However, the factor loadings and, correspondingly, the scale reliabilities for most of the SDQ scales (except for Emotional Problems) were low, which suggests poor specificity of the items. Subsequent exploratory and confirmatory factor analyses suggested that a 3-factor structure had a comparable model fit and better internal consistency of the scales. The study concluded that, although the SDQ scales do conform reasonably well to a 5-factor model, the scales are unsatisfactory in other respects and that, in its present form, the instrument has inadequate psychometric characteristics. Future research is needed for further scale development.     

How to justify enforcing a Ulysses contract when Ulysses is competent to refuse

Sometimes the mentally ill have sufficient mental capacity to refuse treatment competently, and others have a moral duty to respect their refusal. However, those with episodic mental disorders may wish to precommit themselves to treatment, using Ulysses contracts known as "mental health advance directives." How can health care providers justify enforcing such contracts over an agent's current, competent refusal? I argue that providers respect an agent's autonomy not retrospectively--by reference to his or her past wishes-and not merely synchronically--so that the agent gets what he or she wants right now-but diachronically and prospectively, acting so that the agent can shape his or her circumstances as the agent wishes over time, for the agent will experience the consequences of providers' actions over time. Mental health directives accomplish this, so they are a way of respecting the agent's autonomy even when providers override the agent's current competent refusal.     

Temporal associative processes revealed by intrusions in paired-associate recall

Although much is known about the factors that influence the acquisition and retention of individual paired associates, the existence of temporally defined associations spanning multiple pairs has not been demonstrated. We report two experiments in which subjects studied randomly paired nouns for a subsequent cued recall test. When subjects recalled nontarget items, their intrusions tended to come from nearby pairs. This across-pair contiguity effect was graded, spanning noncontiguously studied word pairs. The existence of such long-range temporally defined associations lends further support to contextual-retrieval models of episodic association.     

Sexual attitudes and behavior at four universities: do region, race, and/or religion matter?

This study sought to ascertain any differences in sexual attitudes, levels of premarital sexual involvement, and risk-taking sexual practices of college students at four distinctly different universities: a historic Black public university; a predominately white, Southern private university with a religious heritage; a Southwestern public university; and a Midwestern public university. An anonymous questionnaire was administered to a volunteer sample of 1,915 never-married women and 1,111 never-married men in select upper and lower division classes. Numerous significant differences among campuses were found regarding sexual history, first sexual intercourse, and sexual risk-taking. Religion, family background, and campus milieu were strong mediating variables, but race appeared as the single most influential factor differentiating the sexual attitudes and behavior of these college students. Implications are suggested for professionals in fields of research, education, and therapy.