PSYC 342 Lecture Notes - Lecture 22: Receptive Field, Sensory System
13 Jun 2020
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Receptor response can decline with maintained stimuli. The progressive loss of response to a maintained stimuli. Show a slow/nonexistent decline in the frequency of a. p. s. Show a rapid decline in the frequency of a. p. s. Successive levels of pathways process sensory information. Pathways leading from sensory receptors to the highest levels of the brain. Different levels of the pathway process the sensory information in different ways. Each sensory system has itis own distinctive pathway. The part of the environment that a receptor responds to. Ex. the receptive field of the auditory neuron = sounds of the pian. Ex. the somatosensory receptive field = skin. Neuron doesn"t respond to anything outside its receptive field. The center fo the receptive field (rf) is excitatory. When you touch the inhibitory part (surround) of the rf, it goes below the baseline. Neuron responds less change in activity. Researchers used to think that adult brains could not undergo significant changes.
