PSYC 100 Chapter 9: PSYCH 100 week 9 online lesson

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Katherine Fretz

Document Summary

Psych week 9, unit 3: sensation and perception. Topic 1: the visual system: describe how the structure of our visual system affects the way we interpret the world around us. Identify which physical characteristics of light correspond to which psychological characteristics: two physical characteristics. Wavelength: distance from crest of one wave to crest of next, related to the psychological property of colour. We see light with wavelengths 400-700 nm"s: 400 nm = violet, 700 nm = red. Amplitude & intensity: amplitude is the height of each wave, intensity depends directly on amplitude (height from centre to top, intensity corresponds to psychological property of brightness. Higher amplitude waves are perceived as brighter. Describe the visual system from eye to cortex: major structures are the cornea, pupil, lens, and retina. !2: the axons of the ganglion cells form the optic nerve, conveying visual information to the brain. Differentiate between rods and cones (function, location, convergence)