Abstract
Electrogastric waveforms of human Ss were examined in relation to conditions of response contingent avoidance of a noxious tone, altered feedback of successful and unsuccessful avoidance, non-response contingent aversive stimulation and somatization scores on the Mini-Mult Test. Significant differences were observed in electrogastric waveform frequency measures between baseline and tone periods. There was a significant difference for amplitude measures between trials based on presence and absence of tone, and in the interaction between presence and absence of tones and the personality characteristic of somatization. A trend was observed for amplitude in an interaction effect of successful vs unsuccessful avoidance and high vs low somatization.
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