Biomedical subjects

S Rachman

Publications and source records attributed to S Rachman.

At least 19 recordsLinked to original sources

PubMed1992

Fearful distortions.

Clinical observations suggesting that perceptual distortions can take place during episodes of fear are described, and two hypotheses are set out: (1) perceptual distortions occur during episodes of fear, and (2) such distortions decline after reduction of the pertinent fear. An experiment in which fearful subjects were asked to report their perceptions of a feared object during episodes of fear, and then again after fear-reduction, was carried out. Snake-phobic and spider-phobic subjects showed evidence of some distortions in the activity of the pertinent fear object, but no distortions of size. After the reduction of the relevant fear, the subjects reported significant declines in the activity of the pertinent animal. The two hypotheses received partial support.

Adult↗

PubMed1992

The reduction of claustrophobia--I.

The purpose of this study was to investigate the process of change during three interventions for claustrophobia, with particular reference to cognitive changes. Forty-eight participants, recruited from the community through the local media, were randomly assigned to one of four groups: pure exposure, exposure to the sensations of anxiety (interoceptive exposure), modification of negative cognitions, or a control group. All interventions were given over three sessions. The exposure group proved superior to the control on a wide range of measures. In the cognitive group, scores of reported fear and panic, declined significantly. The interoceptive group made some modest gains. An analysis of the timing of fear reduction and of treatment generalization, provides some indications of the mechanism of change.

Adult↗

PubMed1992

A search for contrast effects with fear evoking stimuli.

The occurrence of fear contrast effects was investigated in a laboratory study of fearful people. A total of 65 university students were exposed on separate occasions to two fearful stimuli (spiders and snakes). The first exposure session was manipulated so that experimental groups differed in the amount of fear evoked by the stimulus (high fear, moderate fear and low fear). Exposure to the second animal was designed to produce a moderate level of fear in all subjects. During exposure to the animals, measures of subjective fear and heart rate were taken. Compared to a control group of subjects who experienced moderate fear on two occasions, a prior high fear experience led to a decrease in fear of the second stimulus, and a prior low fear experience led to an increase in fear of the second stimulus. The increase in fear in the latter group was evident in both subjective and physiological indices of fear, but in the high fear group the contrast was evident only in subjective fear.

Adult↗

PubMed1990

Affect, pain, and autobiographical memory.

Twenty-five young female undergraduates were tested on two occasions: once when they were experiencing menstrual pain of at least moderate severity and once when they were pain free. On each occasion, Ss rated their current levels of pain and affect and retrieved real-life events from their personal past. At the end of the second occasion, Ss were reminded of all of the events they had retrieved on either occasion, and then rated the pleasantness of these events at the time of their original occurrence. Results revealed that the impact of pain on autobiographical memory was wholly mediated by its influence on mood. That is, pain impeded access to memories of pleasant personal experiences, whereas it promoted the retrieval of unpleasant events only if pain was accompanied by an increase in unpleasant affect. Discussion centers on the clinical and cognitive implications of the present results, and on prospects for future research.

Adaptation, Psychological↗

PubMed1979