brain quiz 2

In which of the following techniques do researchers inject a harmless, radioactive substance into the living human brain to examine activity?

Positron-emission tomography (PET)

Sally says that her dream about going to a circus is just her brain attempting to make sense of random stimulation from the brain stem. Sally's explanation is consistent with which of the following theories of dreaming?

Activation-synthesis

Which of the following statements is true of alcohol?

Alcohol is a depressant, because it calms neural activity and slows body function.

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

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?

Cerrebellum

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

Difficulty with speech production

The release of stored serotonin and the eventual damage of serotonin-producing neurons is most closely associated with the long-term use of

Ecstasy.

Which of the following groups of characteristics best describes the REM sleep stage?

Fast breathing, relatively high heart rate, relatively high blood pressure

After taking a psychoactive drug for many years, Carl stops taking it. He finds withdrawal to be physically painful, because the drug that he had been taking caused his brain to stop producing its own endorphins. Which drug was he taking?

Heroin

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.

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

Medulla

Shortly after falling asleep, James experiences the hypnagogic sensation of falling. It is most likely that he is in which stage of sleep?

NREM-1

Significant damage to which of the following parts of the brain will most likely cause a person to fall into a deep coma from which the person will be unable to awaken?

Reticular formation

A patient reports constant sleepiness. A series of tests reveal that the patient's sleep is frequently disrupted by periods of interrupted breathing and brief awakenings. Which of the following diagnoses would account for such symptoms?

Sleep apnea

motor cortex

Stimulation of which of the following may cause a person to involuntarily move their arm?

George was involved in an accident and experienced head trauma. Although his eyes were functioning normally, he was unable to see. Which area of the brain was most likely affected by the accident?

The occipital lobe

A person will most likely develop aphasia, which is the loss of ability to understand speech, as a result of damage to which of the following parts of the brain?

Wernicke's area

Circadian rhythm refers to

a pattern of biological functioning that occurs on a roughly 24-hour cycle.

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

Stimulation of portions of the left temporal lobe of the brain during surgery will cause the patient to

hear sounds

Layla has difficulty going to sleep and staying asleep. Layla is most likely suffering from

insomnia

People who have experienced severe damage to the frontal lobe of the brain seldom regain their ability to

make and carry out plans

Stimulation of which of the following may cause a person to involuntarily move their arm?

motor cortex