BAPSY Biological Basis of Behavior 5

Question 1

The hypothalamus plays a critical role in regulating all of the following EXCEPT:

Accepted Answer

Voluntary skeletal movement

Answer

Voluntary skeletal movement is controlled by the motor cortex and basal ganglia, not the hypothalamus, which regulates homeostatic drives and autonomic functions.

Question 2

Identical (monozygotic) twins are used in behavioral genetics research primarily because they:

Accepted Answer

Share 100% of their genetic material, allowing researchers to isolate environmental effects

Answer

Monozygotic twins share nearly 100% of their DNA, making any phenotypic differences between them attributable to environmental influences.

Question 3

Which neurotransmitter is most critically involved in Alzheimer's disease pathology?

Accepted Answer

Acetylcholine

Answer

Alzheimer's disease involves significant loss of cholinergic neurons, and the degeneration of acetylcholine-producing cells in the basal forebrain contributes to memory deficits.

Question 4

The 'refractory period' following an action potential refers to the time during which:

Accepted Answer

A second action potential cannot be initiated or requires an unusually strong stimulus

Answer

During the absolute refractory period, no stimulus can trigger another action potential; the relative refractory period requires a stronger-than-normal stimulus.

Question 5

Research on pheromones in humans suggests that:

Accepted Answer

Evidence for pheromone-mediated behavioral effects in humans is limited and debated

Answer

While some studies suggest human body odors influence attraction and immune compatibility preferences, robust evidence for classic pheromone effects on behavior in humans is lacking.

BAPSY - Bachelor of Arts in Psychology Practice Test

BAPSY - Bachelor of Arts in Psychology Practice Test

BAPSY Biological Basis of Behavior 5