week_10_touch_3 - How Do We Feel Our Body? The...

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HD 220 Fall 2006 1 Temple, 2006 1 How Do We Feel Our Body? The Somatosensory System Week 9, Lecture 2 Temple, 2006 2 • Somatosensory system – Types of sensation – Receptors of sensation – Sensation travels through the spinal cord to the brain – Sensation in the brain • Somatosensory cortex • Relationship between touch and movement • Chemical senses –O l fac t ion –Gus ta t ion Temple, 2006 3 Sensation - Touch • Somatosensation – Fine touch –V ib ra t ion – Crude touch –Pa in
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HD 220 Fall 2006 2 Temple, 2006 4 Somatosensory Receptors Temple, 2006 5 Somatosensory Receptors Temple, 2006 6 Sensitivity • Sensitivity – Density of receptors – Receptive field varies – High density = greater sensitivity = smaller receptive field – 2-point sensitivity
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HD 220 Fall 2006 3 Temple, 2006 7 • Somatosensory system – Types of sensation – Receptors of sensation – Sensation travels through the spinal cord to the brain – Sensation in the brain • Somatosensory cortex • Relationship between touch and movement • Chemical senses –O l fac t ion –Gus ta t ion Temple, 2006
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HD 220 Fall 2006 4 Temple, 2006 10 Damage to Spinal Cord • Touch crosses
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This note was uploaded on 09/28/2008 for the course HD 220 taught by Professor Anon during the Fall '06 term at Cornell University (Engineering School).

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week_10_touch_3 - How Do We Feel Our Body? The...

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