PSYC 211 Study Guide - Midterm Guide: Retinal Ganglion Cell, Visual Cortex, Extrastriate Cortex

• School: McGill University
• Department: Psychology
• Course: PSYC 211
• Professor: Jonathan Britt

Document Summary

Certain dimensions that we talk about in terms of color: Hue: the dominant wavelength (the color that you are referring to) The light that you end up seeing is the wavelengths that are not absorbed by the object. Light goes into the cornea (which is continuous with the sclera, which is opaque) Goes through the pupil (a hole inside the muscle called the iris, which can expand and retract) Goes through the lens and gets reflected onto the retina. This is a subset of sensory receptors (which is any neuron that has the ability to detect sensory stimuli) Photoreceptors are neurons that detect light (cones/rods) using opsins. Opsins are stimulated by light and cause the membrane potential to change. We get a sensory potential which is a result of the sensory stimuli. 3 types of cones (defined by their opsin that they carry) Blue cones have blue opsi(cid:374)s, a(cid:374)d so o(cid:374) .