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Unformatted text preview: Part of Brain Responding to index finger Index finger D i s t a n c e f r o m t i p ( c m ) 1cm 2cm 3cm 4cm 5cm 6cm 5cm 3cm 5cm 5cm 3cm Where does RF come from? All connections from finger to neurons you are recording from Part of Brain Responding to index finger Index finger D i s t a n c e f r o m t i p ( c m ) 1cm 2cm 3cm 4cm 5cm 6cm 5cm Where does RF come from? All connections from finger to neurons you are recording from Spinal chord neuron Notice, that certain parts of the body have a larger cortical area devoted to them. Which ones? Face, Hands, Feet This ‘Magnification’ has perceptual consequences. Do you think we are better or worse at discriminating touch on our finger whichis magnified on the map or on This demonstrates that what we perceive depends on neuronal connections in our sensory systems. VII.A.6.c. Important stimuli are over-represented in maps our trunk which has less brain processing it. Finger, the more brain the better you can process information....
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This note was uploaded on 11/16/2011 for the course NPB NPB 100 taught by Professor Campbell during the Spring '10 term at UC Davis.
- Spring '10