Lecture5SensationStudent

Lecture5SensationStudent - Chapter 4: Sensation &...

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1 General Psychology January 19, 2010 Chapter 4: Announcements s Test 1 b Next Tuesday b 50 multiple choice questions s From lecture and book s Bring blue UCD Scantron and #2 pencil b Practice Questions s From the book s Book publisher’s website s Smartsite b Actual questions from the test! s BE ON TIME!!!! Sensation and Perception s Sensation b Bringing information from the outside world into the body and to the brain s Perception b Processing this information and making sense of it
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2 Sensation vs. Perception Sensation s Links to Nervous System s What senses do we have? s Transduction s Sensory Adaptation s Vision Example Links to the Nervous System s Thalamus b Sensory relay station/gateway to cortex b Except smell s Contralateral connections b Right side of body b Left side of body b Exception: Taste
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3 Sensory Cortex Smell Taste What senses do we have? s Chemical senses b Olfaction (smell) b Gustation (taste) s Somatic senses b Touch b Temperature b Kinesthetic (body position and movement) b Pain s Audition (hearing) s Vestibular Sense (balance) s Vision How does a stimulus get into a sensory neuron? s Transduction Physical energy signals (stimulus) Electrical energy signals (action potentials) s Receptors specific to each sense b Vision: photoreceptors
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4 Transduction: Vision Light Waves (stimulus) Electrical energy (neural impulse) Review Transduction Transduction s Sensation b Stimulation of a sense organ by physical energy
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Lecture5SensationStudent - Chapter 4: Sensation &...

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