senses_2_24bb - Edge detection Properties Adaptation Tonic...

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Review What is signal transduction? Convert stimulus energy to neural activity How is a generator potential similar to an EPSP? Both are graded and proportional to the stimulus What is receptor fractionation? Receptors with varying levels of thresholds How is stimulus intensity coded? Frequency of AP What is recruitment? Increased stimulus increases the number of receptors responding
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Coding Location, Location, Location Homunculus Receptive Field Region of space that responds to stimulus
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Unformatted text preview: Edge detection Properties Adaptation Tonic Phasic CHANGE Sensory Processing Somatosensory pathways Dermatomes Spinal nerves Large myelinated axons Dorsal Column system 1 st synapse in medulla Cross Thalamus S1 Curiosities: Tickle and caressing Tactile agnosia Tickle Hard to tickle oneself Even rats like to be tickled Emotional touching That “spark” Small unmyelinated Emotional, affiliative...
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This note was uploaded on 02/24/2011 for the course PSYC 460 taught by Professor Lawrence during the Spring '10 term at South Carolina.

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senses_2_24bb - Edge detection Properties Adaptation Tonic...

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