PSYC 221 Lecture Notes - Lecture 3: Occipital Lobe, Peripheral Vision, Retina
23 Jan 2019
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Document Summary
Involves taking the info that is sensed by the sense organs and interpreting it. Visual perception- interpreting visual info by the eye. Eye structure: cornea and lens are made up of see-through cells, no blood vessels, eye constantly in motion. Iris contract to let in more or less light: pupil is a hole that allows light in, fovea- highest acuity, blind spot- where the optic nerve is, no photoreceptors there, brain fills in the info. The eye like a camera: takes incoming light, lens that sharpens and focuses light, an upside-down version of the world projected on retina. How does light energy get to the brain: transduction- changing physical stimulus into neural energy. Image from left and right is seen by both eyes: one hemisphere gets image from each side- contralateral, left visual field to right hemisphere, damage to different spots leads to different blind spots.
