CAS PS 222 Study Guide - Midterm Guide: Retina, Amacrine Cell, Mach Bands
10 Aug 2018
School
Department
Course
Professor
Document Summary
Transduction: energy from outside transform it into electrical impulse so that your brain can interpret and transmit: chemical and physiological components. Isomerization: when a photon of light hits the retinal and makes it separate from the opsin (retinal and opsin separate) When retinal and opsin come back together= regeneration. Dark adaptation is the time it takes for opsin and retinal to rejoin again. Depolarization: neuron is usually polarized(negative) -70 mv to +40 mv, becomes positive, excitatory transmitters: cause inside of the nsuron to become more positive. Hyperpolarization: when neuron becomes even more negative, inhibitory transmitters: cause the inside of the neuron to become more negative. Synapse of only one neuron to another. Peripheral vision, many rods, not many cones, very specific, and have much acuity, so any little thing in periph vision that moves, youll be able to notice it, peripheral vision is more sensitive.
