PSYA01H3 Chapter 4 (p.1): Psychology Textbook Notes Chapter 4 (P.1)
Document Summary
Sensation and perception (4. 1) sensation and perception at a glance. Sensation: the process of detecting external events by sense organs and turning those stimuli into neural signals noise and sight are raw info relayed to brain where perception occurs. Perception: involves attending to, organizing, interpreting stimuli that we sense recognizing sounds and understanding colours, shapes etc. Transductions: when specialized receptors transform physical energy of the outside world into neural impulses travel to brain and influence activity of brain structures, give rise to our internal representation of the world. Diff. for diff. sense (eg. light = receptors at back of eye, sound = cochlea) all sense use action potential. Visual info gets sent to occipital lobes which generates our exp. Of vision, auditory = temporal lobes diff. sense in diff. parts of brain was first introduced by johannes muller, doctrine of specific nerve energies.
