Contrast efferent and afferent tracing procedures.
What will be an ideal response?
In the efferent tracing procedure, a chemical is injected into a brain site, taken up by dendrites, and transported out to the axons. Immunocytochemistry is used to visualize the places that receive axons from the neurons of the injection site. In contrast, afferent tracing involves injecting a chemical, which is taken up by axon terminal buttons and transported backward to the cell bodies. This procedure thus identifies the neurons that innervate a specific brain region.
You might also like to view...
Why is it that women often experience more financial struggles after losing their spouse than men do?
a. Because burial and funeral costs are approximately twice as much for a deceased man as a deceased woman b. Because their income will likely decline significantly after their spouse's death c. Because the costs of medical care for a man as he dies are usually three to four times as much as the costs for a woman d. Because life insurance claims take an average of 12 and 24 months to pay for a deceased man, while they only take 3 to 4 months to pay for a deceased woman
If an IQ test is correlated with future academic success, the test has
a. subjective validity b. predictive validity c. test-retest reliability d. split-half reliability
Which of the following demonstrates the presence of a refractory period?
a. Light is refracted as it passes through a prism. b. Blood is refracted from the body into the penis during the excitement phase. c. A man experiences an orgasm and cannot experience another for at least 30 minutes. d. A woman experiences several orgasms.
Both natural and artificial (drug) reinforcers stimulate the release of _____ in the nucleus accumbens
a. histamine b. serotonin c. dopamine d. adrenaline