PSYC 311 Chapter 18: PSYC 311 Reading 18 Tanaka

• School: McGill University
• Department: Psychology
• Course: PSYC 311
• Professor: Michalakis Petrides

Document Summary

Integration of form, texture, and colour information in the inferotemporal cortex of the macaque monkey. Because an ablation of the it cortex results in a specific deficit in visual-pattern discrimination, it has been thought to be center of pattern vision. In this experiment, single cell recordings were conducted in the it cortex of macaque monkeys. The simplest 2d pattern that fully activated the cell was assumed to be the stimulus feature, which the cell extracted from the images. Most cells in the posterior it had small receptive fields and were primary cells. These cells showed selectivity for orientation, color, and/or size of the stimulus. Most cells in the anterior it had large receptive fields and were classified as elaborate cells. Their activation required more complex features than oriented contours, colors, and simple textures. For some cells, the optimal stimulus for activiation was found to be a combination of a few groups of patterns.