PSYB65H3 Chapter Notes - Chapter 8: Eardrum, Cochlea, Ganglion

• School: UTSC
• Department: Psychology
• Course: PSYB65H3
• Professor: Zachariah Campbell

Document Summary

Specialized cells that transduce, convert, sensory energy into neural activity. Receptors are energy filters: sensory receptors designed to respond only to a narrow band of energy w/in each modality"s energy spectrum, differences of sensory range for each species & individual. Receptors transduce energy: vision: light energy chemical energy. Chemical energy action potentials: auditory: air-pressure waves # of forms of mechanical energy. Mechanical energy activates auditory receptors action potentials: somatosensory system: mechanical energy activates mechanoreceptors (cells sensitive to touch/pain) Receptive fields locate sensory events: receptive fields: specific part of world to which it responds. Every receptor organ & cell has: locate sensory events in space receptive fields of adjacent sensory receptors may overlap relatively different responses to events help in localizing sensations. Receptors identify change & constancy: sensory receptors differ in sensitivity, adapt slowly/rapidly or react to only specific type of energy, rapidly adapting receptors: detect whether something is there.