Relationship between SCR, heart rate and information processing

Swart, J.H. De; Das-Smaal, E.A.

doi:10.1016/0301-0511(76)90029-6

Cited by 11 publications

(15 citation statements)

References 6 publications

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“…GSR varied among different types of feedback; GSR was highest at disconfirmation and lowest at blanks. This finding is consistent with the earlier findings of De Swart and Das-Smaal (1976, 1979a (in preparation) found this relationship for an EEG response, the P3, at a perceptual decision task and in a CI task, respectively.…”

Section: Discussionsupporting

confidence: 93%

“…However, in the 100% feedback condition of the former experiment a positive relationship was found between number of preceding confirmations and GSR at disconfirming feedback. Another study by De Swart and Das-Smaal (1976), in which 100% feedback was also given, yielded the same result. As an explanation of the difference between the 100% and 67% feedback conditions, De Swart and Das-Smaal (1979a) suggested an inclination to lapse into a passive state after a blank, as was done by Falmagne (1970) and Aiken et al (1972).…”

Section: Discussionsupporting

confidence: 59%

“…In a CI task De Swart and Das-Smaal (1976, 1979a found a positive relationship between GSR and the informational value of the feedback; GSR appeared to be lowest at blanks (which provided no information), higher at confirming feedback, and highest at disconfirming feedback. Furthermore, GSR at disconfirming feedback increased with an increasing number of confirmations directly preceding disconfirmations.…”

Section: Introductionmentioning

confidence: 97%

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Typicality, physiological activity and concept identification

Das-Smaal

Swart

1981

Acta Psychologica

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The extent to which instances are good or poor examples of their categories (typicality) was varied in a concept identification (CI) task. Typicality was first established for the kind of artificial material traditionally used in CI tasks (experiment 1). This material was employed in a CI task (experiment 2) with a variety of dependent variables, including the galvanic skin response (GSR). To test the generality of the results, more realistic stimuli were employed (experiments 3 and 4). The results showed that typicality influenced performance on the CI task, that the GSR is primarily related to uncertainty reduction, that the findings with arbitrary materials are replicated with more meaningful materials, and that the multi-hypothesis sampling theory of Levine is supported by the findings.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 97%

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Typicality, physiological activity and concept identification

Das-Smaal

Swart

1981

Acta Psychologica

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“…In case probabilities of the modeis. De Swart and Dasof correct classifications (confirmations) the subject Smaal (1976Smaal ( , 1979aSmaal ( , 1979b argued that Sokoiov's stays with his hypothesis. Many studies have shown model is a neural analogue of the cognitive process that subjects perform according to this strategy 'reof hypothesis testing.…”

mentioning

confidence: 90%

“…InfluentialtheoriesofConcept-Identificationbe- (Trabasso & Bower, 1968;Falmagne, 1970; De haviour state that subjects are testing hypotheses to Swart & Das-Smaal, 1976, 1979a, 1979b. leam concepts (e.g.…”

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confidence: 99%

P300 and Uncertainty Reduction in a Concept‐Identification Task

Swart¹,

Kok²,

Das-Smaal³

1981

Psychophysiology

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The relationship between the amplitude of P300, the mean amplitude of the Slow Wave, and uncertainty reduction after (dis)confirmation of hypotheses was studied in a Concept-Identification task. The subjects had to categorize stimuli according to a conceptual mIe (joint denial or exclusion) and to rate the confidence that their classification was correct. Three types of feedback were distinguished: confirming (subject's categorization was correct), disconfirming (subject's categorization was incorrect), and non-informative feedback. The EEG was averaged separately according to the three types of feedback and the two confidence ratings (low, high).The data showed the predicted interaction between type of feedback and confidence level. A larger P300 amplitude tumed up after confirming feedback when the subject was less confident, than when he was more confident. The reverse was found after disconfirming feedback. The P300 amplitude after non-informative feedback was not influenced by confidence. The mean amplitude of the Slow Wave showed approximately the same interaction pattem.The results were interpreted in terms of changes in the probability of hypotheses which subjects use to categorize stimuli in a Concept-Identification task.

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The early identification of anxiety-laden material with the aid of skin conductance measurements

Lukens¹

1979

J. Clin. Psychol.

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Measured electrodermal responses (EDR), in the form of changes in skin conductivity, during administration of a calibration questionnaire (CQ) and a personal history questionnaire (PHQ) to each of 25 Ss. "Strong" changes were defined statistically for each S from the amplitudes of EDR evoked by the CQ. The free-floating anxiety of each S also was measured. As predicted on the grounds that questions of the PHQ were more likely than the non-personal questions of the CQ to intersect unresolved, anxiety-laden material, it was found that strong EDR evoked by the PHQ were significantly more likely to perseverate than those evoked by the CQ. Hence, the technique has potential clinical use in identifying anxiety-laden material. Free-floating anxiety did not correlate significantly with EDR data.

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Relationship between SCR, heart rate and information processing

Cited by 11 publications

References 6 publications

Typicality, physiological activity and concept identification

Typicality, physiological activity and concept identification

P300 and Uncertainty Reduction in a Concept‐Identification Task

The early identification of anxiety-laden material with the aid of skin conductance measurements

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