APA Biological Psychology and Neuroscience

Question 1

Which neurotransmitter is primarily associated with the regulation of mood, sleep, and appetite?

Accepted Answer

Serotonin

Answer

Dopamine

Answer

Acetylcholine

Answer

GABA

Question 2

The blood-brain barrier primarily functions to:

Accepted Answer

Protect the brain from harmful substances in the bloodstream

Answer

Regulate blood pressure in the brain

Answer

Facilitate oxygen delivery to neurons

Answer

Control neurotransmitter reuptake

Question 3

Action potentials in neurons follow the all-or-none principle, which means:

Accepted Answer

A neuron fires at full strength once threshold is reached, or not at all

Answer

All neurons in a pathway fire simultaneously

Answer

A neuron fires only when all synaptic inputs are excitatory

Answer

Neural firing strength is proportional to stimulus intensity

Question 4

Which brain structure is most critically involved in the formation of new explicit (declarative) memories?

Accepted Answer

Hippocampus

Answer

Amygdala

Answer

Cerebellum

Answer

Thalamus

Question 5

Myelin sheaths surrounding axons primarily serve to:

Accepted Answer

Increase the speed of neural transmission

Answer

Provide direct nutrients to the neuron cell body

Answer

Prevent action potentials from occurring at the nodes of Ranvier

Answer

Store and release neurotransmitters

Question 6

The process by which a neurotransmitter is transported back into the presynaptic neuron after release is called:

Accepted Answer

Reuptake

Answer

Enzymatic degradation

Answer

Autoreception

Answer

Diffusion clearance

Question 7

Which lobe of the cerebral cortex is primarily responsible for processing visual information?

Accepted Answer

Occipital lobe

Answer

Frontal lobe

Answer

Parietal lobe

Answer

Temporal lobe