Javier is learning French that necessitates him to remember new words and the grammar and syntax of the language. Which of the following changes is most likely to occur in his brain as he learns and memorizes the new language?
A. Growth of new neurons
B. Elimination of obsolete neurons
C. Increase in the activity of the parietal lobe
D. Weakening synaptic connections
A. Growth of new neurons
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Chelsea is an older woman who has been having some difficulty with her hearing lately. If she is experiencing the normal age-related changes in her hearing that you'd expect, which of the following would she have the MOST difficulty hearing? a. A young girl's high-pitched voice
b. The thunder of a raucous rainstorm. c. The loud siren of a fire truck passing by her house. d. Her husband's deep voice over the breakfast table.
The self-instruction, "Pack underwear, socks, and toothbrush," serves to
a. focus attention. b. provide encouragement. c. guide behavior. d. reduce anxiety.
When an editor has received all the reviews on an article, the editor
a. accepts the paper b. accepts the paper pending revisions c. rejects the paper d. any of the above
In posttraumatic stress disorder (PTSD), people often feel hypervigilant, or unable to relax even when they're in a very safe situation. Which of the following neurotransmitters might be involved in this unusual state?
a. acetylcholine b. serotonin c. dopamine d. norepinephrine