PSY_3_1_28_2010-1 - Psych3 The Biological Basis of...

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Psych3 – The Biological Basis of Psychology--Somatosensory Systems Objectives Distinguish between the 3 different types of somatosenosry information. Distinguish between the 3 different types of exteroceptive systems and describe their pathways from the periphery to the somatosensory cortex. Describe the functional difference between free nerve endings and Pacinian corpuscles. Explain how fast adapting skin receptors (e.g., Pacinian corpuscles) differ from slow adapting skin receptors in terms of someone poking you versus leaning on you. Explain why destruction of a single dorsal root in the spinal cord does not usually result in sensory loss. Explain why damage to the somatosensory cortex or thalamus can result in a loss of touch and proprioception from the opposite side of the body whereas damage to the spinal cord can result in a loss of touch and proprioception from the same side of the body. Compare and contrast the anatomy and function of the 2 major ascending
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This note was uploaded on 03/05/2010 for the course PSYCH PSYCH 3 taught by Professor Cohen during the Winter '10 term at California State University , Monterey Bay.

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