PSYCH 1XX3 Chapter Notes - Chapter 10: Visual Cortex, Extrastriate Cortex, Two-Streams Hypothesis
Document Summary
Magno and parvo cells in the retina transduce the light stimulus into a neural pulse. Magno cells are found mainly in the periphery of the retina and are used for detecting changes in brightness as well as motion and depth. Parvo cells are found throughout the retina and are important for detecting color, pattern and form. Ganglion cells and their small receptive fields are crucial to object recognition. From the retina, the axons of these cells exit the eye via the optic nerve, travel to the lgn and end up in the occipital lobe. Cells are particular about what makes them fire, called feature detectors. In 1952, hodgkin and huxley recorded the electrical activity in an individual neuron of the squid, and this paved the way for other researchers to use this technology to see how individual neurons respond to specific stimuli.
