Towards a psychosocial mediator model of hostility and CHD

Abstract

How might hostility contribute to the development of CHD? One possible explanation, labelled “psychosocial vulnerability”, is that hostile individuals inhabit a more taxing interpersonal world, and that increased stress, in turn, causes CHD. However, previous research testing this proposition has suffered from a measurement confound by employing self-reports of stress, social support, and hostility. One hundred and twelve subjects participated in the current study and completed the Cook-Medley Hostility scale. Then, each subject's closest friend was asked to estimate for the past year: (1) how many stressors had been encountered by the subject; (2) how easily the subject was upset by a stressor; (3) how many emotional reactions the subject disclosed after a stressor; and (4) how much social support was available to the subject. Results suggested that hostile men and women may both be phychosocially vulnerable, but they are so at different stages of the stressor-distress process. There was no relation between hostility and observed stressor frequency for either men or women, however, hostility in men was found to be related to increased distress in reaction to stressors and in women was related to decreased disclosure about these stressful events. Importantly, hostility in both men and women was related to decreased levels of observed social support, as compared to their non-hostile peers.     

Using Dichotic Listening to Study Bottom-up and Top-down Processing in Children and Adults

The study examined top-down attention modulation of bottom-up processing in children and adults under conditions of varying bottom-up stimulus demands. Voiced and unvoiced consonant-vowel syllables were used in a dichotic-listening situation to manipulate the strength of the bottom-up stimulus-driven right ear advantage when subjects were instructed to focus attention on, and report, either the left or right ear stimulus. We predicted that children would differ from adults in their ability to use attention to modulate a lateralized ear advantage, and particularly when there was a conflict between the direction of the bottom-up ear advantage and the direction of the top-down attention instruction. Thirty children and 30 adults were presented with dichotic presentations of consonant-vowel syllables. The results showed that the voicing manipulation affected the strength of the ear advantage, and that the children performed significantly below the adults when the voicing parameter caused a strong conflict between bottom-up and top-down processing. Thus, children seem to lack the cognitive flexibility necessary to modulate a stimulus-driven bottom-up ear advantage, particularly in situations where right ear advantage (REA) is enhanced by the acoustic properties of the stimuli and attentional demands require a left ear shift. It is suggested that varying the stimulus demands in a dichotic-listening situation may be a novel way to study cognitive development.     

Interpersonal Moderators of the Effects of Upward Comparisons on Ability Judgments

In everyday life, the meaning—and thus the consequences—of social comparisons are shaped by the interpersonal relationship with the comparison target. In two studies, undergraduates described 1,863 naturally occurring upward social comparisons. Participants ascribed higher ability levels to themselves when they had an ongoing competition or close (but not extremely close) relationship with the upward comparison target. Participants ascribed lower ability levels to distant and disliked targets (especially when their standing relative to a disliked target was personally important). Thus, perceived differences between the abilities of the self and the target were minimized when the target was disliked, moderately close, or a rival. These findings extend and qualify findings from laboratory studies of how upward comparisons affect ability judgments.     

Reminiscence,forgetting, and hypermnesia using face–name learning: Isolating the effects using recall and recognition memory measures

A face–name learning paradigm was used to study phenomena involved in reminiscence, forgetting, and hypermnesia. Individuals introduced themselves on videotape while participants tried to learn their names. The presence of cues during testing increased overall performance but decreased hypermnesia in Experiment 1. Significant recognition memory effects were found for reminiscence and hypermnesia in Experiments 2 and 3. Experiment 3 also showed no interference from activities between testing sessions, but did show facilitating effects from exposure to photographs of target faces and to exposure of target names. The results were interpreted as showing support for reminiscence effects being primarily caused by imagery redintegration and effects consistent with stimulus sampling theories.     

Religion and anxiety treatments in primary care patients

Earlier data suggested that religious physicians are less likely to refer to a psychiatrist or psychologist. This follow-up study measures how religious beliefs affect anxiety treatments in primary care. We surveyed US primary care physicians and psychiatrists using a vignette of a patient with anxiety symptoms. Physicians were asked how likely they were to recommend antianxiety medication, see the patient for counseling, refer to a psychiatrist, refer to a psychologist or licensed counselor, encourage meaningful relationships and activities, and encourage involvement in religious community. We experimentally varied symptom severity, whether the patient was Christian or Jewish, and whether she attended religious services. Physician attendance at religious services was assessed in the survey. The response rate was 896 out of 1427 primary care physicians and 312 out of 487 psychiatrists. Religious physicians were more likely to promote religious resources. There was no statistically significant difference between physicians' recommendations for religious and nonreligious patients. There was no statistically significant difference in religious and nonreligious physicians' referrals to a psychologist, licensed counselor, or psychiatrist. Ultimately, we did not find a difference in religious and nonreligious physicians' support for mental health referrals, however, religious physicians were more likely to encourage using religious resources.     

Hierarchical elaboration in the conceptual structures of vietnam combat veterans

Abstract

Sixty male Vietnam combat veterans, 30 hospitalized for post-traumatic stress disorder (PTSD) and 30 with no PTSD or other psychiatric disorder, sorted and labeled their life events into numeric matrices (repertory grids). Through hierarchical-classes analysis of a subject's matrix, we could compare the hierarchical level (elaboration) of the subject's constructs of a negative combat event with the hierarchical levels of other subjects' constructs of negative combat events and with the subject's precombat life event construction. As predicted, the level of construct elaboration was virtually identical for the two groups for precombat non-trauma-related events but was reduced in the PTSD group for the negative combat event. In addition, the Pythagorean distance scores of the PTSD group indicated less conceptual distance between the negative combat event and negative life events after Vietnam compared with the non-PTSD group's scores. Patients with PTSD rated negative life events more extremely (fewer “shades of gray” ratings) than did the non-PTSD group, especially life events that occurred after Vietnam.     

Comparison Blindness

Change blindness has been linked to comparisons over time when visual input is disturbed by a transient. This is most directly seen in “flicker” paradigms where change is invisible when introduced during a blank period between successive presentations of stimuli, and is implicit in paradigms where a stimulus is changed during a saccade. Difficulties in comparing two simultaneously present stimuli have been considered to be due to transaccadic memory limitations in tasks requiring saccades. We present here experiments that demonstrate the phenomenology of change blindness, but in tasks where two stimuli are present in the central visual field within a single fixation and where there are no transients present. These experiments are based on contrast discriminations of patterns composed of a few simple elements. We have found comparisons over space within a single fixation to be as difficult as comparisons over time. As in the more usual paradigms for change blindness, cueing makes changes easy to detect. These results suggest that a memory bottleneck is not essential to produce change blindness.     

Upon Reflection

I report on the fate of three methodological and metatheoretical ideas introduced by Brunswik roughly half a century ago. All were greeted with more than the usual hostility because they challenged the conventional beliefs of the time. All have survived in unexpected ways. I also address certain sins of commission and omission made during the neo-Brunswikian phase of the development of Social Judgement Theory. My hopes and fears for the future are mentioned     

Sharpening Ockham's Razor: The role of psychopathology and neuropsychopathology in the perpetration of domestic violence

Current major explanatory theoretical views of domestic violence perpetration can be summarized as feminist/socio-cultural, social learning theory-based intergenerational transmission, and psychological/psychosocial. Of those, psychological/psychosocial views offer the most parsimonious and thorough explanations, while feminist/socio-cultural theory relies on the metaphysical usage of the construct “patriarchy” and miniscule empirical support, and research guided by intergenerational transmission suffers from small effect sizes. This review summarizes these theoretical perspectives and evaluates them according to epistemological criteria of parsimony, elegance, and empirical utility. A more in-depth review examines empirical links between psychological and neuropsychological disorders and domestic violence perpetration. This effort at theory-building advances the premise that domestic violence perpetration is better and more accurately understood as maladaptive coping, symptomatic of a range of psychological and neuropsychological disorders than as either a culturally supported strategy for male domination of women or as only learned behavior.     

The COMT Val/Met polymorphism is associated with reading‐related skills and consistent patterns of functional neural activation

In both children and adults there is large variability in reading skill, with approximately 5–10% of individuals characterized as having reading disability; these individuals struggle to learn to read despite adequate intelligence and opportunity. Although it is well established that a substantial portion of this variability is attributed to the genetic differences between individuals, specifics of the connections between reading and the genome are not understood. This article presents data that suggest that variation in the COMT gene, which has previously been associated with variation in higher‐order cognition, is associated with reading and reading‐related skills, at the level of both brain and behavior. In particular, we found that the COMT Val/Met polymorphism at rs4680, which results in the substitution of the ancestral Valine (Val) by Methionine (Met), was associated with better performance on a number of critical reading measures and with patterns of functional neural activation that have been linked to better readers. We argue that this polymorphism, known for its broad effects on cognition, may modulate (likely through frontal lobe function) reading skill.