PSY BEH 11A Chapter Notes - Chapter 5: Outer Ear, Auditory Cortex, Neural Adaptation
22 Mar 2018
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Sensation : detection of physical stimuli and transmission of that info to the brain. No interpretation of what we are experiencing. Perception : brain"s further processing, organization, interpretation of sensory info. Bottom-up processing : based on physical features of the stimulus. Each sensory aspect of a stimulus is processed, the aspects build up into perception of that stimulus. Top-down processing : how knowledge, expectations, past experiences shape the interpretation of sensory info. Context affects perception: what we see influences what we perceive. Sensory coding : different features of physical environment are coded by activity in different neurons. Transduction : process by which sensory stimuli are converted to signa ls the brain can interpret. Process involves specialized cells in sense organs: sensory receptors. Receive physical/ chemical stimulation and pass resulting impulses to brain in form of neural impulses. Thalamus send info to cerebral cortex interpreted. Function properly: brain needs qualitative & quantitative info. Quantitative: consists of degree/ magnitude of those qualities.
