Question

Elevated glucocorticoid levels during stress may explain?

1) loss of cells in the amygdala.
2) development of memory problems in older persons.
3) poor performance of stressed rats in tasks of cocaine self-administration.
4) induction of Alzheimer's disease after stress.
5) the inhibition of growth noted during stress.

Answer 1

Elevated glucocorticoid levels during stress may explain various effects such as loss of cells in the amygdala, memory problems in older persons, poor performance in tasks of cocaine self-administration, induction of Alzheimer's disease, and inhibition of growth.

Step-by-step explanation:

Glucocorticoids, such as cortisol, are hormones released during stress that can have various effects on the body. Elevated glucocorticoid levels during stress may explain the following:

1. Loss of cells in the amygdala: Chronic stress and high glucocorticoid levels have been associated with the loss of neurons in the amygdala, a brain region involved in emotional processing.
2. Development of memory problems in older persons: Prolonged exposure to high glucocorticoid levels can impair memory function, particularly in older individuals.
3. Poor performance of stressed rats in tasks of cocaine self-administration: Stress and glucocorticoids can interfere with the reward system in the brain, leading to changes in behavior and reduced motivation.
4. Induction of Alzheimer's disease after stress: There is evidence suggesting that chronic stress and elevated glucocorticoid levels may contribute to the development or progression of Alzheimer's disease.
5. The inhibition of growth noted during stress: Glucocorticoids have catabolic effects on tissues, including muscle proteins, and can inhibit growth processes.