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Sensory information is interpreted on the basis of frequency of arriving:
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Action Potentials
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Conscious awareness of a sensation is called a:
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Perception
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Sensory receptors represent the interface between the:
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Nervous System & External/Internal Environment
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A sensory receptor detects:
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An arriving stimulus and translates it into an action potential that can be conducted to the CNS
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Sensory information that arrives at the CNS is routed according to:
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The Localization and nature of the stimulus
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Along sensory pathways, a series of neurons relays information from one point to another, what are the two points?
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The receptor to another neuron at a specific site in the cerebral cortex
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Adaptation:
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Is a reduction in sensitivity in the presence of a constant stimulus. You "adapt" to stimuli that are painless and constant
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Peripheral adaptation occurs when?
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The level of receptor activity changes. The receptor responds strongly at first, but thereafter its activity gradually declines
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What is central adaptation?
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Example: After being exposed to a new smell, conscious awareness of the stimulus disappears, though sensory neurons are still active
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Therefore, central adaptation at the subconscious level.....
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Further restricts the amount of detail that arrives at the cerebral cortex
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Peripheral adaptation does what?
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Reduces the amount of information that reaches the CNS
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3 Classifications of General Senses:
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Exteroceptors, Proprioceptors, Interoceptors
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Exteroceptors:
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Provide information about the external environment
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Proprioceptors:
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Report the positions of skeletal muscles and joints
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Interoceptors:
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Monitor visceral organs and functions
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