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8 Cards in this Set
- Front
- Back
Reticular activating system (RAS)
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a poorly defined network that extends from the hypothalamus to the medulla, mediates arousal. Brainstem
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the 2 types of sensory experiences
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I. the external sesation- visual, auditory, olfactory, gustatory, tactile
II. Internal- Kinesthetic and Visceral |
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define Kinesthetic
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refers to the awarness of positioning of body parts and body movement
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define viseral sensory
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pertains to the awarness of the inner organs
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what 4 conditions are necesary for a sensory experience?
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1. a stimulus-an agent act or other influence capable of initiating a response by the nervous system
2.Receptor or sense organ to recieve the stimulus 3.Impulse to the brain; intact nervous pathway 4. sensation created by the brain to translate the experience. |
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define:
sensory deficit |
Impaired or absent functioning on one or more senses. Ex. impaired sight or hearing
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define:
sensory deprivation |
insufficient or momotonous stimuli. the RAS is no longer able to project normal levels of activation to the brain.
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define:
sensory overload |
excessive stimuli; feels out of control, brain can't process
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