PSY100H1 Chapter Notes -Detection Theory, Auditory Cortex, Sensory Neuron
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PSY100H1 Full Course Notes
Verified Note
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Document Summary
Sensation: the sense organs" responses to external stimuli and the transmission of these responses to the brain. Perception: the processing, organization, and interpretation of sensory signals; it results in an internal representation of the stimulus. The essence of sensation is detection, the essence of perception is construction of useful and meaningful information about a particular environment. Perception is often based on our prior experiences, which shape our expectations about new sensory experiences. What we sense (see, hear, taste, touch or smell) is the result of brain processes that actively construct perceptual experiences and as a result, allow us to adapt to our environments" details. Stimuli must be coded to be understood by the brain. Sensory coding: our sensory organs" translations of stimuli"s physical properties into neural impulses. The brain cannot process raw stimuli, so the stimuli must be translated into chemical and electrical signals the brain can interpret.
