7878803
Description
Flashcards by Claudia Craiovan, updated more than 1 year ago
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Created by Claudia Craiovan
almost 9 years ago
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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 | 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. |
| 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 |
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