StudentsFall08_Psy1.1_Notes_Sensation

StudentsFall08_Psy1.1_Notes_Sensation - Psychology1.1...

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Psychology 1.1 Psychology 1.1 Joanna Serafin jserafin@gc.cuny.edu Fall 2008 Sensory systems evolved not to provide full, objective accounts of the world’s  physical properties but, rather, to provide the specific kinds of information that  the animal needs to survive and reproduce -Peter Gray Outline 0. Overview of Sensory Processes 1. Smell 2. Taste 3. Hearing 4. Vision Sensation and Perception 0. Sensation : basic processes by which sensory organs and the nervous system respond to stimuli in the environments and to the elementary psychological experiences that result from those processes. 1. Perception : refers to the complex organizing of sensory information within the brain and to the meaningful interpretations extracted from it. 0. Physical stimulus is the matter or energy of the physical world that impinges on sense organs Physical Stimulus Physiological response Sensory Experience
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1. Physiological response is the pattern of chemical and electrical activity that occurs in sense organs, nerves and the brain as a result of the stimuli 2. Sensory experience is the subjective, psychological sensation or perception (taste, sound, sight) General working of sensation 0. Sensory receptors are specialized structures that respond to physical stimuli by producing electrical changes that can initiate neural impulses in sensory neurons. 1. Sensory neurons are specialized neurons that carry information form sensory receptors into the central nervous system.
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Transduction 2. TRANSDUCTION : Physical Situation changed into an Electrical Response of a receptor cell. 3. Transduction along two lines is essential for the senses to work.
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This note was uploaded on 10/15/2010 for the course PSYCH PSYCH1 taught by Professor Johnson during the Fall '09 term at CUNY Brooklyn.

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StudentsFall08_Psy1.1_Notes_Sensation - Psychology1.1...

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