PSY372H5 Lecture Notes - Lecture 33: Sense Of Balance, Optical Illusion, Nociception
Document Summary
Sensation conversion of physical properties of the world into a neural code: process that takes place in the sensory organs, vision, audition, tactile, olfaction and gustation. Perception the processing of sensory info into something that can meaningfully guide behaviour. 4. 2. 2 perception as inference: guessing the properties of the world that caused the sensory stimulation, stimulus is inherently ambiguous. 4. 3 the visual system: between 1/3 and of the cortex is involved in visual processing. 4. 3. 2 the visual brain: lateral geniculate nucleus where 90% of the processed visual info from the retina heads to, part of the thalamus that performs higher level processing while connecting sensory inputs and the cortex. Image segmentation while the retinal image is a continuous array of measurements, brain wants to know how to divide up the image into different objects and regions: ex. Counting the number of objects in a scene: depth perception while the image is 2d, brain wants to know where those objects are in.
