PSY 202 Lecture Notes - Lecture 5: Psychophysics, Psy, Visual Cortex
Document Summary
O study of how we perceive sensory stimuli based on their physical characteristics. O weber"s law: the stronger the stimulus, the. O ask participants to indicate if they perceived a stimulus (e. g. , heard a tone) O humans respond to a narrow spectrum of light, which we can see. Iris: the coloured portion and controls how much light enters the eye: pupil is the hole where light enters the eye, cornea: transparent cells that focuses light on the back of the eye, lens: changes curvature (accommodation) to retract light onto back of eye, retina: thin membrane at the back of the eye, fovea is in its center is responsible for acuity, cones: for colour and detail, rods: function best in low illumination. O human visual system adapted for both high & low light conditions. O progressive improvement in brightness sensitivity in low illumination. Rely on rods for vision in low light conditions. The experience of colour depends on: brightness, hue:
