title: Response bias and physiological reactivity.
abstract: Sixteen Ss were selected from a group of 30 adult males for low and high levels of physiological reactivity, as defined by several measures of electrodermal activity (EDA). They were subsequently tested on two occasions on a tone discrimination task in which confidence ratings were required. High EDA Ss discriminated a significantly greater number of tones, but this apparent superiority was not due to their superior sensitivity, but to a greater bias towards responding positively to signals. The results were discussed in relation to possible mechanisms mediating individual differences in response bias and physiological reactivity.
mesh_terms: D001143:Arousal; D005712:Galvanic Skin Response; D006801:Humans; D008297:Male; D010551:Personality; D010897:Pitch Discrimination / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology