Hemispheric lateralization of the EEG during wakefulness and REM sleep in young healthy adults

EEG recordings confirm hemispheric lateralization of brain activity during cognitive tasks. The aim of the present study was to investigate spontaneous EEG lateralization under two conditions, waking and REM sleep. Bilateral monopolar EEG was recorded in eight participants using a 12-electrode montage, before the night (5 min eyes closed) and during REM sleep. Spectral analysis (0.75-19.75 Hz) revealed left prefrontal lateralization on total spectrum amplitude power and right occipital lateralization in Delta activity during waking. In contrast, during REM sleep, right frontal lateralization in Theta and Beta activities and right lateralization in occipital Delta activity was observed. These results suggest that spontaneous EEG activities generated during waking and REM sleep are supported in part by a common thalamo-cortical neural network (right occipital Delta dominance) while additional, possibly neuro-cognitive factors modulate waking left prefrontal dominance and REM sleep right frontal dominance.     

Decision making and interference in the domestic cat (Felis catus)

Domestic cats (Felis catus) received a task in which an obstacle was introduced at the time they were ready to reach for 1 among 2 or 3 baited targets. The results revealed that when the initially chosen direction (i.e., before the introduction of the obstacle) and the new one were orthogonal, the cats reassessed distance, angular deviation, and visibility once they had turned around the obstacle (Experiments 1, 2, and 3). Then the cats chose a different target than the one that would have been chosen had there been no obstacle. When both the initially chosen and the new direction matched (Experiment 4), the cats kept intact their initial decision. The discussion focuses on the nature of the representational system of the cat. The discussion also emphasizes comparisons with dogs (i.e., cooperative hunters).     

Body-esteem, body mass index, and risk for disordered eating among adolescents in synchronized swimming

The aim of this study was to examine dimensions of body-esteem, Body Mass Index, and their relations with eating disorder symptoms among 42 elite adolescent athletes engaged in competitive synchronized swimming (M = 15.4 yr., SD = 1.2) and to compare them with 40 athletes in sports with no emphasis on leanness (M = 16.5 yr., SD = .93), and 50 nonathlete college female students (M = 16.3 yr., SD = 1.1). They completed the Body-esteem Scale and the Eating Attitudes Test, and the Body Mass Index was computed. Analysis showed synchronized swimmers reported greater negative feelings about their appearance than the two other groups and low perceptions of how others evaluate their physical appearance. Participants did not differ on the EAT-26. Regression analyses showed that Body Mass Index and Body-esteem Appearance accounted for 38% of the variance in log-transformed Dieting scores of synchronized swimmers. Results are discussed in relation to the literature.     

Relations between female students' personality traits and reported handicaps to rhythmic gymnastics performance

The present study evaluated the relative contributions of Self-esteem, Trait anxiety, and Public Self-consciousness to self-handicapping on a sex-typed task, within a specific academic sport context. Prior to the competitive examination used to recruit French Physical Education Teachers, female sport students (N = 74) were asked to list and rate on a 7-point scale handicaps which could be disruptive to their Rhythmic Gymnastics performance. Self-esteem did not account for significant variance in any category of handicaps. Trait Anxiety was negatively related to handicaps related to Rhythmic Gymnastics and to Social and Work Commitments. Public Self-consciousness was significantly related to endorsement of Friends and Family Commitments handicaps. These results were discussed in relation to the literature.     

Visual representations of dynamic actions from static pictures

We investigated how subjects used their knowledge of biomechanical constraints when judging whether different items were in balance or in the process of falling, as a function of their angle of slant. In the first experiment, the stimuli were pictures of postures of a human body, of a wooden mannequin, and of a skeleton. The results show that for these 3 items, fall responses appeared for a smaller slant angle for a backward slant than for a forward one. This difference may reflect the influence of biomechanical constraints. To verify whether the asymmetry of the responses to the mannequin and the skeleton was genuine or due to some semantic context effect, a second experiment was run with only pictures of a wooden mannequin. The same asymmetry was observed. In a third experiment, falling judgments were obtained for pictures of a human body and of a structurally comparable artifactual object. The asymmetry of the fall responses appeared only for the human body.     

The moderating role of autonomous motivation in the job demands-strain relation: A two sample study

Although job demands are known to be detrimental to employees’ psychological health, research suggests that certain individual characteristics moderate this relationship to some extent. This two-sample study investigated whether autonomous motivation moderates the relationship between specific job demands (role overload, role ambiguity, and role conflict) and psychological distress. Hierarchical multiple regression analyses showed clear moderating effects, indicating that highly autonomously motivated employees experience less psychological distress in the presence of job demands than their less autonomously motivated counterparts. Theoretical and practical implications are discussed in light of the job demands–strain perspective and self-determination theory.     

Mapping Response Repertoires

In his triangular model, Moscovici (1970, 1984) maintained that subjects do not have direct relations with the Object; rather, they have repertoires consisting of others’ responses, and these responses mediate the subject's relation with the Object. The present study examines response repertoires. We asked 114 participants to cite significant others and describe these others’ opinions about electromagnetic radiation, to indicate their own response on this issue, and to situate this response vis-à-vis the responses of the significant others described. Our results show that, even if some participants had restricted repertoires consisting of similar and rare responses, more than three-quarters of the participants had extended repertoires consisting of varied, shared, and consistent responses.     

An Accumulation of Negative Life Events and the Construction of Alexithymia: A Longitudinal and Clinical Approach

We began the study with a theoretical comparison of the concepts of alexithymia and operative thought in terms of etiology as well as with a specific approach to comparing the concepts using the Rorschach Inkblot Method (Rorschach, 1921 Rorschach, H. 1921. Psychodiagnostic, Paris, , France: Presses Universitaires de France.  [Google Scholar]) with both Exner's (1986) Comprehensive System and the Parisian School (Chabert, 1983 Chabert, C. 1983. Le Rorschach en clinique adulte: Interprétation psychanalytique [The Rorschach in adult clinical settings: Psychoanalytic interpretation], Paris, , France: Dunod.  [Google Scholar], 1987 Chabert, C. 1987. La Psychopathologie à travers le Rorschach [Psychopathology throughout the Rorschach], Paris, , France: Dunod.  [Google Scholar]; Rausch de Traubenburg, 2000) methods of coding and interpretation. We then present a longitudinal clinical study of a woman suffering perinatal depression starting at 8 months gestation until 34 months postpartum. The case shows how an accumulation of stressful and traumatic life events in the early perinatal period generates a reactive, structured alexithymia. This psychic process transforms an initial acceptance of therapy into a refusal to engage in a therapeutic alliance along with persistent depressive symptoms, impaired quality of life, and maladaptive coping strategies.     

Linking job demands and resources to burnout and work engagement: Does passion underlie these differential relationships?

This study examined the role of passion for work in the health impairment and motivational processes proposed by the job demands-resources model. Based on the dualistic model of passion, we proposed that harmonious and obsessive passion intervene simultaneously in the relationship between (1) job demands and burnout/engagement, and (2) job resources and burnout/engagement. This model was tested in two occupational samples: nurses (n = 1,179) and teachers (n = 745). Results from structural equation modeling support the proposed model in both samples. That is, both types of passion partially mediated the relationship between job demands and burnout, while harmonious passion partially mediated the relationship between job demands and engagement. Moreover, harmonious passion partially mediated the relationship between job resources and burnout/work engagement. Implications for burnout research and management practices are discussed.