Flashcards
Chapter 8 – General Principles of Sensory Processing, Touch and Pain
Flashcards do conjunto (13)
- 1sensory organ?an organ of the body that responds to external stimuli by sending impulses to the sensory nervous system.
- 2Receptor cell?can detect and convert a stimulus into a neural impulse
- 3labelled linesrefers to the idea that each neuron detects only a particular type of information.
- 4sensory transductionConverting stimulus energy into electrical energy (i.e. a neural impulse)
- 5receptor potentialsa local change in the membrane potential of a receptor cell that occurs in response to a sensory stimulus.
- 6Coding 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. - 7adaptationwhere 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. - 8receptive fieldaffects 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.
- 9—All sensory information passes through the thalamus enroute to the cortex except for information coming from the olfactory system.
- 10Specialized 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 - 11a good deal of processing and transforming of sensory information occurs in the -------- nervous system.peripheral nervous system.
- 12Sensory 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 - 13range fractionation
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- FlashCards sobre Chapter 8 – General Principles of Sensory Processing, Touch and Pain, criado por Claudia Craiovan em 27-02-2017.
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