In terms of sensory processing, the brain extracts key features of sensory information that result in...

 

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In terms of sensory processing, the brain extracts key features of sensory information that result in the discrimination of particular sensations. Two fundam ental and general coding principles involved are: 1) receptive field properties of neurons throughout the system and 2) the topographic representation of key stimulus features. Both are fundamental principles of sensory physiology. Using the somatosensory system, describe how (1) receptive field properties of neurons from lower to higher levels of the system and (2) topographical organi zation of localized sensory signals are used to extract and code for key properties of discriminative touch and pain/temperature. Focus on the quality, locat ion, and intensity of touch and pain sensations. Be sure to identify processes that are referred to as "labeled lines" and processes that are referred to as either frequency coding or population coding. In terms of sensory processing, the brain extracts key features of sensory information that result in the discrimination of particular sensations. Two fundam ental and general coding principles involved are: 1) receptive field properties of neurons throughout the system and 2) the topographic representation of key stimulus features. Both are fundamental principles of sensory physiology. Using the somatosensory system, describe how (1) receptive field properties of neurons from lower to higher levels of the system and (2) topographical organi zation of localized sensory signals are used to extract and code for key properties of discriminative touch and pain/temperature. Focus on the quality, locat ion, and intensity of touch and pain sensations. Be sure to identify processes that are referred to as "labeled lines" and processes that are referred to as either frequency coding or population coding.