A decisional analysis of the effects of inferotemporal lesions in the rhesus monkey.
Modified signal detection procedures were used to analyze the effects of inferotemporal cortical resections. The results demonstrated (a) a severe difficulty in responding to differences in luminance; (b) a severe difficulty in responding to differences in luminance; (b) a small but consistent change in sensitivity (d'), which is attributed to an increased sensitivity to noise or a deficiency in the suppression of irrelevant aspects of the environment; and (c) an enhanced bias to respond to a nonrewarded stimulus (a lowering of criterion). This altered bias contrasts with the results obtained from limbic resections in a previous experiment which produced a marked increase in bias to a rewarded contingency without influencing discrimination or detection.
D000818:Animals; D001288:Attention / Q000502:physiology; D003118:Color Perception / Q000502:physiology; D004193:Discrimination Learning / Q000502:physiology*; D008253:Macaca mulatta; D010364:Pattern Recognition, Visual / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D013702:Temporal Lobe / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*