PSY 2104 Chapter Notes - Chapter 2: Visual Acuity, Amacrine Cell, Visual Cortex
1 Oct 2017
School
Department
Course
Professor
Document Summary
Light is focused by the eye cornea: transparent covering of the front of the lens. Xed; cannot adjust focus lens: transparent focusing element of the eye through which light passes after passing through the cornea and the aqueous humor. Loss of accommodation with increasing age presbyopia: condition where the distance of near point increases as a person ages near point for most 20 y/o is 10cm, increases to 14cm by 30 y/o, 22cm by 40 y/o, and 100cm by 60 y/o ciliary muscles weaken with age and lens harden solutions: holding object farther reading glasses. Lasik hyperopia (farsightedness): can see distant objects clearly but has trouble with near objects focus point is behind the retina. 1 visual pigment molecule triggers the release of millions of charged molecules->leads to receptor activation. Measuring cone adaptation measured by observer looking directly at the light. Recording electrical signals in neurons method for recording signals in a single neuron.
