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Haptic (Kinesthesia (muscle spindle receptor (density is not associated…
Haptic
Kinesthesia
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muscle spindle receptor
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density is not associated with high kinesthetic capability, instead it's more related to size of muscle
whose signals are often ambiguous as a result of non one-to-one connection of joint and spindle and the multiple muscle that control specific joint
hands
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finger movement is coupled both by the tissue linkage between them and the tendons connected to multiple muscle which control finger movement
tactile sensory
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mechanoreceptor
categorization
rate of adapting
slow adapting (SA)
respond both to initiated and sustained skin indentation, involving in perceiving shape, coarse textures, direction of motion
fast adapting (FA)
not respond when skin is sustainedly indented, sensing small movement
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temperature
thermoreceptor
categorization
cold and warn
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nociceptive signal will be transmitted to central nervous system if skin temperature is above 43 celcius or below 15 celcius
back of hands and the base of thumbs is more sensitive to thermal signal than finger tips (and this behavioral influence on human)
there are specialized receptor that react to both hot and capsaicin(substance found in pepper) and so does cool and menthol (substance in mint)
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the strechs of both glabrous and hairless skin
, and signal is sensed by SA mechanoreceptor ( which is similar to that of muscle spindle receptors)
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perception of heaviness (annotated by myself, not author)
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