PSYA01H3 Study Guide - Harmonica, Fundamental Frequency, Hair Cell
Document Summary
Learning: detection by sensory organs nerves. Sensory organs and nerves: provide us w. useful info of external world. Differences b/w sources of info in evn = important consequences for the way the sensory system prcesses that info. Hearing (gradual changes as we move) the world. Sensation: detection of simple properties of stimuli (brightness, colour, warmth, sweetness) Before: psychologists belief: perception depended on learning, sensation inate physiological mechanism. Simple sensations no boundry established still complex perceptions. Transduction: process: sense organs convert energy from the environmental events neural activity. Receptor cells: release neurotransmitters that stimulate other neurons alter rate of firing of axons. Somatosenses (body senses): dendrites of neurons respond directly to physical stimuli (no receptor cells) Sensory coding (codes by which brain transmits info) Anatomical coding: (location, type of stimulus, activation of specific nerve fibre of other) Diff sensory organs send messages to dif places in the brain.
