PSYCH 2E03 Lecture 26: Properties of V1 Neurons

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Psych 2e03 lecture 26 properties of area v1 neurons. 4 new features of v1 neurons: binocularity, orientation sensitivity, directional motion selectivity, colour contrast detection, binocularity & ocular dominance. Inputs from the 2 eyes start to intermingle in neurons above and below layer 4c. Neuron(s) that respond to light stimulation in both eyes binocular. Neurons in v1 can be classified according to their responses to one or both eyes. Ocular dominance: stimulation in the eye (or both) a neuron responds maximally to. Strictly monocular neurons are the minority in v1. What is the role of binocular neurons: perfectly suited to compare the retinal images of the 2 eyes, which show slightly different views of the world. Helps perceive relative depths of objects in the environment: orientation selectivity. Orientation selectivity : preference of an area v1 neuron for a visual stimulus of a particular orientation.

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