PSYC 271 Lecture Notes - Lecture 8: Visual Cortex, Receptive Field, Visual Processing

• School: Queen's University
• Department: Psychology
• Course: PSYC 271
• Professor: Amanda Maracle

Document Summary

Basic visual processing occurs along the retinal-geniculate-striate pathway: neurons in the retina along the retinal-thalamic pathway, and in the primary visual cortex all contribute to the below processes. In the primary visual cortex: neurons with circular fields are rare, simple neurons basic computation, complex neurons, how do we go from circular to rectangular receptive fields, overlapping fields summed together. Complex cells receive their information from multiple simple cells which is how it can sense motion: doesn"t matter where it is stimulated, only that it is the correct orientation. Visual processing is plastic not hardwired fine tuned by context and experience: can change orientation preferences and that of those around them. Opponent processing theory: everything else beyond the receptor, three classes of cells after the receptors that are differentially activated by wavelengths, r vs g, b vs y, light vs dark.