PSYC 2000 Chapter : Ch 3 Sensation And Perception Copy
Document Summary
Anatomy of the eye light enters the eye through the pupil: the cornea and the lens help to focus the light, the retina contains special cells that transform the light to nerve impulses called rods and cones. Rods: mostly in the periphery, more light sensitive, detect light and dark, take 20-30 minutes to fully adapt to darkness. Cones: mostly in the fovea (center area of the retina where you see most clearly, less light sensitive, detect colors, have best detail vision, adapt fully to darkness in 2-3 minutes. Afterimages: red and green are paired, blue and yellow are paired. Wavelengths in nanometers: https://www. youtube. com/watch?v=o9bqrsahbtc, how the sun sees you . Sound attributes: pitch: determined by frequency, loudness: determined by amplitude, timbre: complexity of the sound (number of component waves involved in it) Structure of the ear: eardrum moves in response to vibrations, 3 bones in the middle ear move, the basilar membrane vibrates, hairs in the basilar membrane trigger nerve impulses.
