PSYC314 Study Guide - Midterm Guide: Lateral Geniculate Nucleus, Membrane Potential, Ganglion Cell
10 Oct 2018
School
Department
Course
Professor
Document Summary
General principles: transduction (conversion) o you need a detector (receptor cell/protein, usually a small number of subtypes, the brain constructs a version of the outside world (perception) o. It is not always accurate (our senses are not passive measuring devices) i. e. temperature of the ocean o different individuals live in different sensory worlds (i. e. cilantro) Genetic differences in receptors: optical illusions: o why does the moon appear bigger on the horizon. Important for humans: our eyes are close together (binocular vision, highly developed color vision. Stimulus: narrow band on the spectrum of electromagnetic radiation, hue, saturation and brightness, frequency of oscillation of the wave changes the wavelength: determines hue. Layers of the retina: photoreceptors o 2 types (in the retina): Rods: highest sensitivity in low light (scotopic) conditions, low acuity, main receptor in the peripheral area: can not see color well. Protanopia: suggests red cones are filled with green cone opsins.
