Question 1

Which of the following best describes the function of the myelin sheath in neural communication?

Accepted Answer

It increases the speed of electrical signal transmission along the axon by providing fatty insulation.

Question 2

A patient with damage to Broca's area would most likely experience which of the following symptoms?

Accepted Answer

Difficulty producing spoken language.

Question 3

Which neurotransmitter is primarily associated with voluntary movement and pleasure/reward, and is implicated in Parkinson's disease when levels are low?

Accepted Answer

Dopamine

Question 4

During an action potential, which of the following sequences correctly describes the flow of ions across the neuron's membrane?

Accepted Answer

Sodium ions ($$\mathrm{Na^+}) $$rush in, followed by potassium ions ($$\mathrm{K^+}) $$flowing out.

Question 5

A person who has undergone split-brain surgery (severing the corpus callosum) is shown an object in their left visual field. Which hemisphere processes this information, and what is the likely outcome for verbal reporting?

Accepted Answer

Right hemisphere processes the information; the person cannot verbally report what they saw.

Question 6

Which brain structure is primarily responsible for coordinating motor activities and maintaining balance?

Accepted Answer

Cerebellum

Question 7

Which of the following best explains the role of the thalamus in the limbic system?

Accepted Answer

It acts as a sensory relay station, directing incoming sensory information to appropriate areas of the cortex.

Question 8

A patient presents with symptoms of memory loss and difficulty forming new memories after a traumatic brain injury. Which brain structure is most likely affected?

Accepted Answer

Hippocampus

Question 9

Which of the following statements about neurotransmitter antagonists is correct?

Accepted Answer

They block or impede the activity of a neurotransmitter at its receptor site.

Question 10

Which imaging technique uses radioactive substances to measure brain activity and is often used to study which areas of the brain are active during specific tasks?

Accepted Answer

PET Scan

Question 11

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

Accepted Answer

Occipital lobe

Question 12

A person with damage to the Wernicke's area would most likely have difficulty with which of the following?

Accepted Answer

Understanding spoken language

Question 13

Which neurotransmitter is most closely associated with learning and memory, and is excitatory in nature?

Accepted Answer

Glutamate

Question 14

Which of the following best describes the process of 'reuptake' in neurotransmission?

Accepted Answer

Excess neurotransmitters are taken back into the presynaptic neuron after release.

Question 15

Which of the following is a function of the autonomic nervous system's sympathetic division?

Accepted Answer

Initiating the 'fight or flight' response during stress.

Question 16

A researcher wants to study the timing of brain activity during a cognitive task. Which brain mapping technique should they use?

Accepted Answer

EEG (Electroencephalogram)

Question 17

Which of the following best describes the process of 'pruning' in brain development?

Accepted Answer

The removal of synaptic connections to make brain regions more efficient.

Question 18

A person is unable to recognize faces after a stroke. Which area of the brain is most likely damaged?

Accepted Answer

Occipital lobe (visual processing, higher-order visual functions)

Question 19

Which neurotransmitter is derived from tryptophan and is involved in mood regulation, sleep, and emotional sensitivity?

Accepted Answer

Serotonin

Question 20

Which of the following best explains the effect of toxoplasmosis on human behavior?

Accepted Answer

It is caused by a parasite and can lessen fear responses.

Neural Components, Communication, and Brain Structure: Study Notes for Psychology

Guida di studio - Domande di pratica

Study guide - Flashcard