Chapter 3

Chapter 3 - Chapter 3 Sensation & Perception...

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Chapter 3 Sensation & Perception
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Independent Reading Unusual Perceptual Experiences Page 105 in 3 rd edition
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Sensation Senses pick up sensory stimuli (visual, auditorial, and other info and transmit it to the brain. Topics to be covered: Touch Pain
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Touch Tactile: Pertaining to the sense of touch More densely packed = more sensitive
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Pain Gate control theory: Area in spinal chord can act like a gateway. Gate can block or transmit pain messages to the brain. Only feel pain when messages are carried by small conductive fibers can pass through the gate. Large, fast conducting fibers carry other messages to the body and effectively tie up traffic at the gate and keep pain messages from going through, like putting pressure on a bleeding cut. Same if pain from brain to the body, like athletes that don’t feel body pain until the game is over. How does pain affect decisions? Chronic pain impairs the ability to make emotional relation decisions, because the brain
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Chapter 3 - Chapter 3 Sensation & Perception...

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