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Physiologcl Psyc Honors

by: Tremayne Beer

Physiologcl Psyc Honors PSYC 3306

Marketplace > University of Memphis > Psychlogy > PSYC 3306 > Physiologcl Psyc Honors
Tremayne Beer
University of Memphis
GPA 3.84


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Class Notes
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This 2 page Class Notes was uploaded by Tremayne Beer on Friday October 23, 2015. The Class Notes belongs to PSYC 3306 at University of Memphis taught by Staff in Fall. Since its upload, it has received 8 views. For similar materials see /class/228451/psyc-3306-university-of-memphis in Psychlogy at University of Memphis.

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Date Created: 10/23/15
Physiological Psychology Charles J Long PhD NEURAL CODING This course outline is designed to provide you with a study guide Use the lecture book and other resources to expand on its contents OUTLINE TOPICS I Objectives I Kinds ofCoding I Anatomical Basis IReceptors I Concepts I LINKS I TERMS I UIZ I RETURN I Lesson Objectives There is no direct input of physical energy into the nervous system Rather receptors detect and tranduce this energy into neural impulses While neural impulses vary as a function of the length of the myelin segments they otherwise are identical The brain must function to decode these impulses much like a Moris code operator does 1 How do the receptor systems code information What are the primary features of the CNS decoding process Explain qualitative coding Explain quantitative coding Explain the similarities and differences between receptor generator and graded potentials Discuss lateral inhibition and describe its function IOMLWN Explain on off and on off fibers and discuss their function Basic Problem 0 Means of communication with the environment 0 Defining the stimulus o Coding of information by receptor involves physical energy being detected by the receptor http14 l22514185ugpnp055011html 1 of 4 2192001 61347 PM Physiological Psychology 11 Neural Coding o Receptors are sensitive only to a narrow band of stimuli act like pass filters 0 Survival depends on transducer39s specialization o All receptor events transduced to neural impulse o Neural impulse is essentially the same for all stimuli 0 These impulses must be interpreted decoded at higher levels 0 You can think of it working much like the telegraph MENU Kinds of neural coding possible Qualitative coding o Modality coding Muller1826 specific energy of nerves 0 Receptor elements ie rods and cones 0 Pattern of excitation Quantitative coding 0 Frequency of single unit 0 Number of units 0 Threshold change Spatial Localization receptor distribution Spontaneous responses on off onoff Adaptation Habituation amp Fatigue Anatomical basis for neural coding 0 Spatial connections between units 0 Higher centers 0 Receptors Hartline lateral inhibition 0 Mutual inhibition between neighboring ommatidia 1 Each fires at rate related to S intensity 2 Each inhibits neighbors 3 Inhibition of rate of firing 4 Output is function of all above 0 Von Bekesy extended this concept to all receptors Mach Bands http14 l22514185ugpnpcssO l1html 2 of 4 2192001 61347 PM


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