PSY 302 Lecture Notes - Lecture 5: Edge Detection, Spatial Frequency, Receptive Field

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 302
• Professor: Jean- Marc Fellous

Document Summary

At least three types of cells: simple, complex, and hypercomplex: feature selectivity. Visual cortex has 6 parallel layers of neurons running along the brain surface. Line-end detectors visual angle, spatial frequency most cells in v1 are also sensitive to spatial frequencies : the amount of details in their used for the perception of textures retinal disparity: perception of depth. The ventral pathway processes shape information in the 2 hemisphere. The dorsal pathway processes location information in the 2 hemispheres. The further the information goes along the ventral pathway (temporal lobes), the more selective. Loss of color vision with no loss of acuity. Some patients can recognize colors, but not shapes. In humans, face cells are located in the fusiform face area . Respond to complex 3d objects, colors, and forms the cells for specific objects or visual features. Can see perfectly, but can"t recognize faces and put names to faces.