What happens to the rate of firing in motor neurons as we age?
a. No changes occur
b. Firing rates decrease, leading to slower and weaker muscle responses.
c. Firing rates increase, leading to uncomfortable cramping.
d. Firing rates decrease, but muscle fibers are able to compensate for these changes.
b
You might also like to view...
Corbin is a secretary at a law firm. His career choice best reflects
a. a departure from gender-specific expectations in the West. b. the availability of vocational training. c. a decision to follow cultural norms. d. an inability to "fit in."
Baby Janice is just over eight months of age. It is likely that she is just beginning to __________
a) walk while supporting herself on furniture b) walk by herself c) sit without support d) crawl
A jury must decide whether a defendant, already judged guilty, should receive the death penalty. They are told that the defendant committed the crime after years of physical abuse, a fact that could argue for a sentence less than death. This is an example of a(n) _______________ factor.
A. discretionary B. disparity C. aggravating D. mitigating
Jennica experienced neglect as an infant while her mother suffered from severe depression. The outcome on Jennica's development could manifest itself in many different ways. This reflects the developmental principle of _____.
A. psychopathology B. comorbidity C. multifinality D. equifinality