PSYC 2390 Study Guide - Midterm Guide: Detection Theory, False Alarm, Absolute Threshold

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Stimuli (1 & 2: environmental stimulus (ex. reflection of light from a tree causes one to see the tree, principle of transformation: stimuli and responses created by stimuli are transformed, or changed, between the environmental stimulus and perception. Receptor processes/transduction (step 3: sensory receptors: cells specialized to respond to environmental energy, with each sensory system"s receptors specialized to respond to a specific type of energy. Light from object visual receptors environmental energy electrical energy. Visual receptors transform light energy into electrical energy because they contain a light-sensitive chemical called visual pigment, which reacts to light: transduction: the transformation of one from of energy into another. Changes occur because the receptors to brain are not in a straight line so some signals are reduced or prevented from getting through, while some are amplified when they arrive at the brain. Occipital lobe = vision, temporal lobe = hearing, parietal lobe = skin senses (touch, temp. , pain).