Effects of overt and covert task instructions and stimulus modality on orienting response recorded by electrodermal indices.

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概要

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• Two experiments were conducted to examine the occurrences of "selective" orienting response (OR) and "alertive" OR by electrodermal response (EDR) in connection with task instructions and stimulus modalities. Two groups of 36 female university students received two visual and/or auditory stimuli during both habituation and test sessions either unimodally (Exp. I) or bimodally (Exp. II). The subjects in both experiments were assigned to one of three subgroups: PR (pedal-responding), SC (stimulation-counting), and NI (neutral-instruction). The PR was instructed to pedal to the test stimulus; the SC to count the number of the test stimulus presentations; the NI to do nothing. Results are as follows: (1) In Exp. I, a significant increase of the EDR to the test stimulus (selective OR) was observed by both the PR and the SC. (2) In Exp. II, only the PR alone showed significant augmental changes in the EDR magnitude to the non-test stimuli (alertive OR) as well as to the test stimuli. It was suggested, therefore, that the covert task had a little possibility for eliciting the alertive OR.

• 公益社団法人 日本心理学会の論文

著者

• 今井 章

  名古屋大学

関連論文

• Effects of overt and covert task instructions and stimulus modality on orienting response recorded by electrodermal indices.

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