Biomedical subjects

David K Marcus

Publications and source records attributed to David K Marcus.

8 recordsLinked to original sources

PubMed2006

Cognitive and perceptual variables in hypochondriasis and health anxiety: a systematic review.

This review examined (a) whether hypochondriacal/health-anxious individuals hold distinct assumptions about health and illness, (b) if triggering these assumptions leads to increased hypochondriacal concerns, and (c) whether these individuals perceive their bodily sensations differently from others (i.e., experience greater somatosensory amplification). There was clear evidence that health anxiety is related dysfunctional health-related beliefs. Few studies have examined how hypochondriacal concerns are triggered, and inconsistent results emerged from those that have. Health anxiety is also associated with self-reported higher levels of somatosensory amplification. However, there was little evidence that individuals high in health anxiety are actually more accurate perceivers of the their own autonomic processes. Although the results generally supported the central tenets of the cognitive-behavioral model of hypochondriasis and health anxiety, further research will be necessary to determine whether these beliefs are specific to hypochondriasis and to identify any cognitive processes that may be unique to hypochondriasis.

Anxiety↗

PubMed2006

Is antisocial personality disorder continuous or categorical? A taxometric analysis.

BACKGROUND: Although the DSM-IV-TR is organized into discrete disorders, the question of whether a given disorder possesses a dimensional or a categorical latent structure is an empirical one that can be examined using taxometric methods. The objective of this study was to ascertain the latent structure of antisocial personality disorder (ASPD). METHOD: Participants were 1146 male offenders incarcerated in state prisons (n=569), or court-ordered to residential drug treatment (n=577). Participants were interviewed using the Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID-II) to assess ASPD symptoms; they also completed the Personality Diagnostic Questionnaire-4 (PDQ-4) ASPD scale. Taxometric analyses were performed to examine whether ASPD is underpinned by a discrete category or a dimensional construct. RESULTS: Multiple taxometric procedures using two different sets of indicators provided no evidence that ASPD has a taxonic latent structure. Instead, the results were far more consistent with the proposition that ASPD exists on a continuum, regardless of whether it is assessed using a structured interview or a self-report measure. CONCLUSIONS: Evidence that ASPD is dimensional suggests that it is best studied using continuous measures and that dichotomizing individuals into ASPD versus non-ASPD groups will typically result in decreased statistical power. The findings are also consistent with a multifactorial etiology for ASPD and with recent attempts to conceptualize ASPD within the framework of extant dimensional models of personality.

Adult↗

PubMed2006

Psychopathic, not psychopath: taxometric evidence for the dimensional structure of psychopathy.

Although psychopathy is frequently regarded as qualitatively distinct from other conditions, relatively little research has examined whether psychopaths represent a distinct class of individuals. Using a sample of 876 prison inmates and court-ordered substance abuse patients who were administered the Psychopathy Checklist-Revised (R. D. Hare, 2003), the authors examined the latent structure of psychopathy using several taxometric procedures developed by Meehl and colleagues (P. E. Meehl & L. J. Yonce, 1994; N. G. Waller & P. E. Meehl, 1998). The results across these procedures offer no compelling support for the contention that psychopathy is a taxonic construct and contradict previous reports that psychopathy is underpinned by a latent taxon. The authors discuss the theoretical, public policy, and practice-level implications of these findings.

Adult↗

PubMed2006

Interpersonal feedback: a social relations perspective.

The social relations model (SRM; Kenny, 1994) is a statistical model for studying interpersonal perception and behavior that can be meaningfully applied to the group therapy situation. It consists of four primary components that correspond to (a) the general emotional or attitudinal climate of the group, (b) the perspective of the perceiver providing the feedback, (c) the group's consensual view of the target who receives the feedback, and (d) the unique relationship between the perceiver and the target. Because of its rigor and specificity, the components of the SRM may serve as a heuristic for thinking about interpersonal feedback in group therapy. A case example is used to demonstrate how an SRM perspective could guide therapists' ways of conceptualizing feedback.

Adult↗

PubMed2006

Don't fear the social relations model: reply to Piper, Ogrodniczuk, Lamarche, and Joyce.

By studying actual therapy groups and using a sophisticated design to determine that clients who are held in higher esteem by their fellow group members show greater improvement over the course of therapy, Piper, Ogrodniczuk, Lamarche, and Joyce (this issue) have made a significant contribution to the group psychotherapy literature. Unfortunately, Piper et al. focused much of their discussion on the difficulties they faced using the social relations model (SRM) and the statistical program SOREMO. Although the SRM is not simple and it takes practice to run SOREMO, the analytic alternative proposed by Piper et al. has a number of serious limitations that prevents it from being a viable alternative. There is much to be gained from learning the SRM; for those group therapists and researchers who do not want to learn the SRM, they can always consult or collaborate with SRM researchers.

Fear↗

PubMed2004

A taxometric analysis of psychopathic personality.

Although a common assumption throughout much of the professional and popular literature is that psychopaths are qualitatively different from others, very few studies have examined the latent structure of psychopathy. Whether psychopathy is a discrete category or a continuous dimension may have implications for research on the assessment, etiology, and treatment of this disorder. This study examined the latent structure of psychopathy in a sample of 309 jail and prison inmates. Three taxometric procedures were used to analyze indicators drawn from the Psychopathic Personality Inventory (S. O. Lilienfeld & B. P. Andrews, 1996), a self-report instrument. Consistent with prior studies that used other measures of psychopathy, none of the analyses was consistent with a taxonic solution, suggesting that psychopathic personality may be best understood as existing on a continuum.

Adolescent↗

PubMed2003

Are dysfunctional beliefs about illness unique to hypochondriasis?

OBJECTIVE: There is evidence that individuals high in hypochondriasis overestimate the likelihood of ambiguous symptoms being indicative of serious illness. However, it is not known whether this tendency is unique to hypochondriasis or whether it can be attributed to high negative affectivity or other anxiety symptoms often found to be comorbid with hypochondriasis. METHOD: College students (N=133) completed measures of hypochondriasis, depression, anxiety, worry, avoidance and estimated the likelihood of various symptoms indicating catastrophic and minor illnesses. RESULTS: Even after entering the other self-report variables, hypochondriasis was the only variable to predict estimates of the likelihood of serious illness. Conversely, being female, high levels of negative affect, agoraphobic avoidance when accompanied by others and higher estimates about the likelihood of symptoms leading to catastrophic illnesses best predicted hypochondriasis scores. CONCLUSION: Dysfunctional beliefs about illness appear to be unique to hypochondriasis and to uniquely contribute to the prediction of hypochondriasis.

Adolescent↗

PubMed2003

Sex differences in judgments of physical attractiveness: a social relations analysis.

Men and women rated the physical attractiveness of other men and women who were sitting nearby and were rated by them in return. They also provided meta-perceptions of how they thought those others rated them. Attractiveness ratings were partly a function of both the target being rated and the perceiver providing the ratings regardless of the sex of the perceiver or target, but the highest levels of consensus occurred when men judged the attractiveness of women and the highest levels of idiosyncrasy occurred when men rated other men. Meta-perceptions were also idiosyncratic; some believed that they were consistently considered attractive, whereas others thought they were seen as unattractive. People were aware of what others thought of them and, in particular, women's meta-perceptions were highly related to men's judgments of them. People agree about others' attractiveness, and those who are attractive to others know they are pretty or handsome.

Analysis of Variance↗