day06 - adaptation - Three Kinds of Adaptation Psychology...

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Psychology 2050 Perception 13 September 11 Day 06 Three Kinds of Adaptation deFnition: "Modify to suit new conditions" biology: Darwin -- change in the genome so that the phenome better Fts its ecological niche; better --> reproduction; change random with selection perception: 1. Responding to constant stimuli sensory neurons 2. Accommodating different ranges of stimulation sensory systems 3. Accommodating different patterns of stimulation cortex 1. Response to constant stimuli neuronal touch, olfaction, gustation, vision not audition, pain, or kinesthesis response decrement, spontaneous recovery cross-adaptation adaptation (d') vs. habituation ( β ) stabilized images; Purkinje's tree pursuit movements Fxational movements (microsaccades; eye tremors) sensory systems like change without change they “adapt” sensation begins to go away sometimes complete; sometimes not neural response declines sensory organs Fre less transient cells can be thought of as rapidly adapting sustained cells can be thought of as slowly adapting slowly adapting rapidly adapting for convenience look at rapidly adapting systems
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how to test? 1st test interval 2nd test interval 3rd test interval Result by connecting data points
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no cross- adaptation adapt with one stimulus test with a different stimulus some cross adaptation Firing Frequency Stimulus duration adaptation (d') change in the sensitivity d' decreases with increased neural
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This note was uploaded on 09/18/2011 for the course PSYCH 2050 at Cornell University (Engineering School).

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day06 - adaptation - Three Kinds of Adaptation Psychology...

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