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Biomedical subjects

H Berenbaum

Publications and source records attributed to H Berenbaum.

32 records · Page 2Linked to original sources
PubMed1993

The effect of stress on hedonic capacity.

Two experiments were conducted to examine the effect of stress on hedonic capacity. In Experiment 1, cadets in the U.S. Army Reserve Officer Training Corps reported experiencing less pleasure while watching amusing film clips after participating in a weekend of field training exercises than they did on a control day. In Experiment 2, college students reported experiencing less pleasure in their daily activities during final exam week than they did at the baseline assessment. Hedonic capacity was associated with positive affect but not with negative affect or reported stress levels. The deleterious effect of stress on hedonic capacity was particularly strong for subjects with family histories of depression.

Adolescent↗
PubMed1993

Alexithymia and movie preferences.

The goal of this study was to further our understanding of the relationship between the ability to identify one's emotions and the kinds of emotion arousing experiences that people prefer. One hundred and eighty-six undergraduate students completed the Toronto Alexithymia Scale, the Beck Depression Inventory, and a questionnaire inquiring about subjects' movie preferences. Individuals who reported having difficulty identifying their emotions were more likely than those without such difficulty to prefer negatively valenced movies relative to happy movies. Individuals who had both high levels of depression and alexithymia were more likely to prefer fear-arousing rather than anger-arousing movies.

Adolescent↗
PubMed1992

Posed facial expressions of emotion in schizophrenia and depression.

The goals of the present study were to explore: (1) whether schizophrenics, depressives, and normals differ in their likelihood of expressing different emotions; and (2) whether the types of expressions subjects exhibit are associated with their level of reported depressive symptomatology. Subjects were asked to imagine: seeing, smelling, or tasting something disgusting; and having something wonderful happen to them. Subjects were asked to show the experimenter what their face would look like if these things happened. The groups differed in how frequently they exhibited anger or contempt in the first condition and happiness in the second condition. The depressives were most likely to exhibit anger/contempt and least likely to exhibit happiness. Using Beck Depression Inventory scores as dependent variables, there were significant interactions between diagnostic group and the type of facial expressions exhibited. The associations between facial expressions and BDI scores were in the opposite directions for depressives and schizophrenics.

Adult↗
PubMed1992

Emotional experience and expression in schizophrenia and depression.

The emotional responses of schizophrenic, depressed, and normal subjects and whether differences in the emotional responding of these groups depended on how emotional responses were elicited or measured were examined. Twenty-three blunted and 20 nonblunted schizophrenics, 17 unipolar depressed subjects, and 20 normal subjects were exposed to a series of affect-eliciting stimuli. The stimuli varied in valence (positive vs. negative) and in level of cognitive demand. Subjects reported their subjective experiences, and their facial expressions were videotaped. Blunted schizophrenics were the least facially expressive, although their reported subjective experiences did not differ from those of the other groups. The nonblunted schizophrenics were more responsive than the depressed subjects to the positive stimuli, although the two groups did not differ in their clinical ratings of affective flatness.

Adult↗
PubMed1990

Hedonic capacity in schizophrenics and their twins.

Audio-taped interviews recorded in the Gottesman-Shields schizophrenic twin series (17 pairs of identical twins, 14 pairs of fraternal same-sex twins, and 12 unpaired twins) were rated for level of hedonic capacity. Schizophrenics who were not hospitalized at the time of their interview were rated significantly lower (more impaired) on hedonic capacity than their normal co-twins. A significant negative correlation was also found between hedonic capacity and severity of illness. Hedonic capacity was found to be genetically influenced, although it appeared to be less heritable than the global diagnosis of schizophrenia. These results are consistent with Meehl's suggestion that reduced hedonic capacity is a heritable personality trait which potentiates the development of schizophrenia among those who are genetically predisposed to the disorder. The results suggest that anhedonia is not a phenotypic vulnerability marker for schizophrenia.

Affective Symptoms↗
PubMed1987

Anhedonia and emotional responses to affect evoking stimuli.

The purpose of the present study was to determine whether individuals with unusually high scores on the Scale for Physical Anhedonia (Chapman et al. 1976) would differ from average scorers in their emotional responses to affect-evoking stimuli. Ten male and ten female anhedonics, as well as ten male and ten female control subjects, were each shown brief filmclips that were expected to elicit emotional responses. The subjects' facial expressions were videotaped while they watched the filmclips, and they also completed adjective checklists describing how they felt while watching them. The anhedonics and nonanhedonics did not differ in their self-reports of emotional experience, nor did they differ in their facial expressions of emotion while viewing the filmclips. Compared to men, women reported experiencing more emotion, and their facial expressions also indicated greater responsiveness.

Affective Symptoms↗
PubMed1985

Rating verbal communication impairment in schizophrenia and affective disorders.

Audio recordings of interviews with 42 psychiatric patients (10 schizophrenic, 11 manic, 11 schizoaffective, and 10 depressive patients) and 10 hospitalized orthopedic patients were rated for the presence of verbal communication impairment using the system developed by Andreasen. The definitions of some categories required additional qualifying statements before agreement could be reached on their meaning and applicability in specific circumstances. Nevertheless, the results indicate that the scales can be used reliably by carefully trained, nonprofessional raters. Significant differences were found between diagnostic groups with regard to the frequency and severity of some categories of communication impairment, but the general pattern of results supports previous suggestions that these problems are not pathognomonic of schizophrenia. Based on our experience, we suggest a few changes that might be helpful to other investigators, both in the procedures used for obtaining samples of speech and the definitions of subcategories of verbal communication impairment.

Child↗
PubMedDate not supplied

Correlates and retrospectively reported antecedents of alexithymia.

Two experiments were conducted in order to examine the relationship between alexithymia and: 1) family environment; 2) discomfort and ambivalence experiencing and expressing emotion; and 3) dissociation. Research participants in both experiments were college students. We examined the ability to identify and communicate emotion using the Toronto Alexithymia Scale. In Experiment 1, we found that alexithymia was significantly correlated with ambivalence concerning expression of emotion (measured using the Ambivalence over Emotional Expressiveness Questionnaire) and with discomfort concerning negative emotional states (measured using a new instrument called the Emotional Experience Discomfort Scale). Higher levels of alexithymia were associated with retrospective reports of diminished family expressiveness (measured using the Expressiveness subscale of the Family Environment Scale) and with feeling less emotionally safe during childhood (measured using a new instrument called the Childhood Experiences Questionnaire). In Experiment 2, we found that alexithymia was significantly correlated with dissociative experiences (measured using the Dissociative Experiences Scale). However, alexithymia and dissociation differed in the way they were associated with retrospective reports of different aspects of family expressiveness (measured using the Family Expressiveness Questionnaire). High levels of dissociation were associated with increased negative dominant family communication. In contrast, high levels of alexithymia were associated with low levels of positive family communication.

Adolescent↗
PubMedDate not supplied

Alexithymia and the interpretation of hostile-provoking situations.

BACKGROUND: To examine the relationship between alexithymia and the interpretation of hostility-provoking situations. METHODS: Sixty-two college students completed the TAS-20 and the Test for the Interpretation of Provoking Situations (TIPS). The TIPS measures how accurately participants can select the most likely explanation for the occurrence of a hypothetical, potentially provoking situation; it also measures how accurately participants judge whether explanations for events are innocent or noninnocent. RESULTS: Higher levels of alexithymia were associated with greater degrees of accuracy in interpreting the innocence of interpersonal information. The facets of alexithymia that were most strongly associated with interpretation accuracy varied by gender. CONCLUSIONS: Alexithymia is not associated with a general affect recognition deficit. The results are consistent with social factors playing a central role in alexithymia.

Adolescent↗
PubMedDate not supplied

A twin study of alexithymia.

BACKGROUND: Factors contributing to the development of alexithymia and the nature of alexithymia's relation with trait negative and positive affectivity are unclear. In this study, a twin approach was used to examine the degree of genetic and environmental contributions to the different facets of alexithymia, and the nature of their relations to trait negative and positive affectivity. METHOD: Forty-five monozygotic and 32 same-sex dizygotic twin pairs completed the Toronto Alexithymia Scale-20, the Eysenck Personality Inventory, and a zygosity questionnaire. RESULTS: Model fitting analyses indicated that familial influences contributed significantly to all three facets of alexithymia. Parameter estimates and intraclass correlations suggested, though could not confirm, that it was shared environmental factors that contributed to difficulty identifying and communicating emotions (ID and COM), but shared genetic factors that contributed to externally oriented thinking (EOT). Between-twin cross-trait twin analyses revealed strong correlations between ID and neuroticism, and between COM and extraversion, and suggested that it is shared familial influences which account for these associations. CONCLUSIONS: The results of this study indicate that: (a) the different facets of alexithymia are influenced by familial factors; (b) the previously noted associations between ID and COM and trait affectivity are not merely methodological artifacts; and (c) the associations between ID and COM and trait affectivity are influenced by familial factors. The results also suggest that ID and COM are largely influenced by shared environmental factors, but that EOT is influenced by genetic factors.

Adolescent↗