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Biomedical subjects

N H Frijda

Publications and source records attributed to N H Frijda.

8 recordsLinked to original sources
PubMed1994

Activating effects of androgens on cognitive performance: causal evidence in a group of female-to-male transsexuals.

It is still unclear whether sex differences in cognitive functioning are mainly due to perinatal organizing effects of sex hormones on the brain, or to activating effects in adulthood. In a group of 22 female-to-male transsexuals a battery of visuospatial and verbal ability tests was administered twice: shortly before and 3 months after the start of androgen treatment. The administering of androgens was clearly associated with an increase in spatial ability performance. In contrast, it had a deteriorating effect on verbal fluency tasks. This study offers preliminary evidence that androgens directly and quickly affect cognitive performance in females.

Adolescent↗
PubMed1994

Emotions and respiratory patterns: review and critical analysis.

The literature on emotions and respiration is reviewed. After the early years of experimental psychology, attention to their relationship has been sparse, presumably due to difficulties in adequate measurement of respiration. The available data suggest nevertheless that respiration patterns reflect the general dimensions of emotional response that are linked to response requirements of the emotional situations. It is suggested that the major dimensions are those of calm-excitement, relaxation-tenseness, and active versus passive coping. Research on the emotion-respiration relationships has been largely restricted to the correlates of respiration rate, amplitude, and volume. Finer distinctions than those indicated may well be possible if a wider range of parameters, such as the form of the respiratory cycle, is included in the investigation.

Animals↗
PubMed1994

Modulation of the acoustic startle response by film-induced fear and sexual arousal.

The response matching model of Lang, Bradley, and Cuthbert (1992) predicts startle reflex facilitation during negative relative to positive emotional states. Using slide and imagery paradigms, larger eyeblink responses to startle probes for unpleasant than for pleasant conditions have consistently been reported. The present study extended the previously observed relationship between valence and startle to more complex stimuli, namely 1-min film fragments. Thirty-three subjects viewed a sequence of 27 film fragments with neutral, negative (fearful), and positive (sexual) contents, presented in one of three mixed orders. Blink magnitude to brief bursts of white noise was larger during fearful fragments than during sexual fragments. Blink magnitudes habituated across successive film fragments, but the positive-negative difference remained stable within film fragments and during the entire length of the videotape (approximately 40 min).

Acoustic Stimulation↗
PubMed1992

Cultural variations in emotions: a review.

The psychological and anthropological literature on cultural variations in emotions is reviewed. The literature has been interpreted within the framework of a cognitive-process model of emotions. Both cross-cultural differences and similarities were identified in each phase of the emotion process; similarities in 1 phase do not necessarily imply similarities in other phases. Whether cross-cultural differences or similarities are found depends to an important degree on the level of description of the emotional phenomena. Cultural differences in emotions appear to be due to differences in event types or schemas, in culture-specific appraisal propensities, in behavior repertoires, or in regulation processes. Differences in taxonomies of emotion words sometimes reflect true emotion differences like those just mentioned, but they may also just result from differences in which emotion-process phase serves as the basis for categorization.

Cognition↗
PubMed1988

The laws of emotion.

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Adaptation, Psychological↗