Psych Unit 2 Quiz (2/10/20)

The brain scans of people with amnesia are most likely to show damage to the

hippocampus

Damage to which of the following brain structures may cause the inability to detect the emotional significance of facial expressions, especially those demonstrating fear?

Amygdala

Which of the following correctly describes the firing of neurons?

An all-or-none response

After an electrode implanted in a cat's brain stimulates the cat's amygdala, the cat will most likely do which of the following?

Immediately withdraw in fear

The autonomic nervous system is most directly involved in

digesting food

Treating a patient for Parkinson's disease includes administering a chemical that will lead to increases in the patient's

dopamine

During a psychology experiment, a researcher uses a probe to lesion the ventromedial nucleus of a rat's hypothalamus. After the procedure the rat most likely will

eat more and gain weight

A participant in a study of music perception listens to music with electrodes attached to her scalp while data are collected on the activity of her brain. This technique is called

electroencephalography (EEG)

The limbic system is most closely associated with

emotions

In the figure above, where does the neurotransmitter dopamine have its effect?

E

Which letter indicates the synaptic cleft?

D

Which of the following are NOT part of a neuron?

Synapses

The sequence of shifts in the electrical charge of a neuron is called

the action potential

The time shortly after a neuron fires is referred to as

the refractory period

Activation of the parasympathetic nervous system results in which of the following?

A decrease in heart rate

Damage to the cerebellum would most likely result in which of the following problems?

A loss of motor coordination

Electrically stimulating a rat's amygdala would most likely produce which of the following?

Aggression

In the figure above, where do selective serotonin reuptake inhibitors (SSRIs) have their initial effect?

C

During the high-wire act, Grace walks along a rope suspended 30 feet above the circus floor. Which of the following is most involved in helping Grace coordinate her movements and maintain her balance during the performance?

Cerebellum

Which of the following structures is most closely associated with communication between the central nervous system and the endocrine system?

Hypothalamus

Which of the following is true about the pons?

It is the region of the brain that is most closely associated with sleep and arousal.

Which of the following is true of the reticular activating system?

It regulates levels of arousal.

Neurotransmitters are typically stored in which of the following parts of a neuron?

The terminal buttons

Which of the following is the correct sequence of the neural chain of events set in motion by an environmental stimulus?

Which of the following is the correct sequence of the neural chain of events set in motion by an environmental stimulus?

A person accidentally touches a hand to a hot stove and quickly pulls the hand away, even before sensory information about the hot stove reaches the brain. The person's reaction is most directly enabled by

a spinal reflex

Reuptake of a neurotransmitter refers to

absorption of the neurotransmitter into the terminal buttons of the sending neuron

Information is relayed to the spinal cord or the brain by

afferent neurons

Curare blocks action at acetylcholine synapses and causes paralysis. This drug is an example of an

antagonist

Difficulty in typing smoothly on a keyboard would most likely result from damage to the

cerebellum

The primary effect of the myelin sheath is to

increase the velocity of conduction of the action potential along the axon

The area of the brain stem that is important in controlling breathing is the

medulla

The process by which neurotransmitters are reabsorbed into the neuron after it fires is called

reuptake

Ben was enjoying a walk in the woods on a beautiful Saturday afternoon. As he went around a curve, he noticed a bear walking toward him. Immediately his pupils dilated, he began to perspire, and his heart accelerated. These changes are most closely related to the function of the

sympathetic nervous system

Which of the following is classified as an antagonist?

A tricyclic antidepressant, because they block serotonin and norepinephrine transporters.

The area labeled X in the drawing above denotes which of the following structures?

Axon terminals

A polygraph machine is often called a "lie detector," although it does not detect lies. Instead, it responds to changes in

autonomic arousal

Metabolic activity in different areas of the brain can best be visualized by means of

positron emission tomography (PET)

The function of dendrites is to

receive information from other neurons