Chapter 8 – General Principles of Sensory Processing, Touch and Pain

Claudia Craiovan
Flashcards by Claudia Craiovan, updated more than 1 year ago
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Flashcards on Chapter 8 – General Principles of Sensory Processing, Touch and Pain, created by Claudia Craiovan on 02/27/2017.

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Question Answer
sensory organ? an organ of the body that responds to external stimuli by sending impulses to the sensory nervous system.
Receptor cell? can detect and convert a stimulus into a neural impulse
labelled lines refers to the idea that each neuron detects only a particular type of information.
sensory transduction c3ce4952-e2c3-4a85-b0f8-273e61955e8b.png (image/png) Converting stimulus energy into electrical energy (i.e. a neural impulse)
receptor potentials a local change in the membrane potential of a receptor cell that occurs in response to a sensory stimulus.
Coding 2pts -the idea that characteristics of a stimulus (such as its intensity or location) are somehow represented by neural impulses. -Coding of stimulus location is accomplished through “labeled lines” .- the conversion of stimuli into patterns of impulses -The rules by which action potentials in a sensory system reflect a physical stimulus.
adaptation where they respond vigorously at the start of a stimulus and their response decreases as the stimulus is maintained. This makes us good at detecting change and suppression.
receptive field affects the activity of a neuron in the sensory system. -can be measured for neurons at all levels within a sensory pathway. -often have a center/surround organization. center of a receptive field- can excite a sensory neuron, outer portion - can inhibit the sensory neuron - vary in size shape, and the stimulus properties to which they respond. Cells at many levels of the brain, , exhibit receptive fields. 1cabe2f0-e56a-4eff-b079-972a7776474e.png (image/png)
f9352362-4e77-40d1-ac8c-46a9d3bcd934.png (image/png) All sensory information passes through the thalamus enroute to the cortex except for information coming from the olfactory system.
Specialized body components, collectively called sensory ---------- organs, are sensitive to energies of various sorts that come into contact with the body. The job of these organs is to convert environmental energy into ---------- signals . 1. receptor 2.electrical signals
a good deal of processing and transforming of sensory information occurs in the -------- nervous system. peripheral nervous system.
Sensory information enters the CNS through the ----------and then reaches the -------- for most senses. The ------ shares the information with the -------------, which directs the thalamus to suppress some sensations. Primary sensory cortex swaps information with ----------- sensory cortex. 1.brainsteam 2.thalamus 3.thalamus 4. nonprimary
range fractionation 0e51fdb8-58ae-4857-b111-0941fee14351.png (image/png)
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