音に対する注意の有無と皮膚電位反応の出現態度

概要

論文の詳細を見る
The skin potential responses (SPR) in 15 normal subjects with orienting responses (OR) to loud tones, were examined to the same tones with signal value. After habituation training to 10 nonsignal 1000Hz loud tones, the subjects were instructed to press a button to the same 10 tones immediately when they heard it. All of the subjects changed their status when the stimulus was given signal value. These results excluded peripheral factors as a basis for dishabituation. When the subjects were instructed to perform voluntary button presses in 10 successive trials and approximately 30-50 seconds intervals in the absence of tone stimuli, they showed very poor responses under this condition. It was found that the signal value retarded habituation of SPRs and that it exerted heightened arousal on subjects, which were demonstrated by an appearance of large positive components of SPRs. These results were discussed in terms of autonomic arousal, stimulus significance, and attentional aspects involved in OR.
早稲田大学の論文
1991-03-25