Question 1

Which of the following best describes the function of the myelin sheath in a neuron?

Accepted Answer

It increases the speed of action potential transmission along the axon.

Question 2

Which neurotransmitter is most directly associated with mood regulation, and is often targeted by SSRIs (Selective Serotonin Reuptake Inhibitors)?

Accepted Answer

Serotonin

Question 3

A patient has difficulty producing speech but can understand language. Which brain area is most likely damaged?

Accepted Answer

Broca's area

Question 4

Which of the following best explains the 'all-or-none' principle of action potentials?

Accepted Answer

A neuron either fires completely or not at all, regardless of stimulus strength once threshold is reached.

Question 5

Damage to which structure would most likely result in problems with balance and coordination?

Accepted Answer

Cerebellum

Question 6

Which of the following is a function of the sympathetic nervous system?

Accepted Answer

Increasing respiratory rate during stress

Question 7

A person is unable to recognize faces but can identify objects. Which lobe of the brain is most likely affected?

Accepted Answer

Temporal lobe

Question 8

Which of the following best describes the function of the corpus callosum?

Accepted Answer

It connects the left and right cerebral hemispheres, allowing communication between them.

Question 9

Which of the following is an example of a binocular cue for depth perception?

Accepted Answer

Retinal disparity

Question 10

Which sleep disorder is characterized by sudden, uncontrollable episodes of falling asleep during the day?

Accepted Answer

Narcolepsy

Question 11

Which of the following best describes the function of the limbic system?

Accepted Answer

Processing emotions and memory

Question 12

Which brain imaging technique measures electrical activity in the brain using electrodes placed on the scalp?

Accepted Answer

Electroencephalogram (EEG)

Question 13

Which of the following best illustrates the concept of 'top-down processing' in perception?

Accepted Answer

Recognizing a familiar face in a crowd based on prior experience

Question 14

Which of the following is a function of dopamine in the brain?

Accepted Answer

Involved in movement, motivation, and reward pathways

Question 15

Which of the following best describes the trichromatic theory of color vision?

Accepted Answer

Color vision is based on three types of cones sensitive to red, green, and blue light.

Question 16

A person with damage to the hippocampus would most likely have difficulty with which of the following?

Accepted Answer

Forming new long-term memories

Question 17

Which of the following best explains the difference between sensation and perception?

Accepted Answer

Sensation is the detection of physical energy by sensory receptors, while perception is the interpretation of that information.

Question 18

Which of the following is an example of the Gestalt principle of similarity?

Accepted Answer

Grouping objects that look alike

Question 19

Which of the following best describes the function of the adrenal gland?

Accepted Answer

Releases hormones involved in the stress response, such as cortisol and adrenaline

Question 20

Which of the following best describes the phenomenon of inattentional blindness?

Accepted Answer

Failing to notice a change in a visual stimulus because attention is focused elsewhere

Biological Bases of Behavior and Sensation & Perception: Study Guide

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