PSYCO275 Midterm: psych 275 midterm 2

• School: University of Alberta
• Department: Psychology
• Course: PSYCO275
• Professor: Clayton Dickson

Document Summary

Each sensory system"s receptors are specialized to filter a different form of energy. Receptive fields receptive field: sensory region that stimulates a receptor cell or neuron. Each photoreceptor cell has a unique receptive field. Implant electrode near a single neuron: immobilize eye with curare. Neurons monocular: receptive field to one eye only. Neurons responding to fovea have smaller: receptive fields than periphery. Receptor density and sensitivity the visual system uses different sets of receptors to respond to light and color: colour photoreceptors are small and densely packed to make sensitive colour discriminations in bright. Our sensory system use different receptor to enhance sensitivity under different conditions. Ex: light: receptors for black-white vision are larger and more scattered, but their sensitivity to light. Differences in density of sensory receptors determine many animals" special abilities. The visual and somatosensory systems have three relays and auditory system has four.