Unit 1 AP Review

Which of the following is true of a neuron in the resting state?

• The inside of the cell is negative compared to the outside

• The outside of the cell membrane is negative compared to the inside

• The concentration of sodium ions is equal inside and outside of the cell membrain

• The neuron is not polarized

When excitatory neurotransmitters stimulate a single neuron, the neuron

• becomes more polarized

• produces a stronger action potential

• becomes less likely to produce an action potential

• becomes more likely to produce an action potential

Juana accidentally touched a hot iron. She immediately drew back her hand. Which of the following is true about the withdrawal of her hand?

• It was initiated in the motor cortex

• It was initiated in the spinal cord

• It was due to instructions from the brain

• It was an operantly conditioned response

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?

Responses

• Hypothalamus

• Frontal Lobe

• Reticular Formation

• Thalamus

A person will most likely develop aphasia as a result of damage to which of the following parts of the brain?

• Occipital Lobe

• Wernicke's area

• Auditory Cortex

• Parietal Lobe

A person with a severe head injury subsequently acts irresponsibly, does not seem to be able to plan effectively, and is easy to anger. Which of the following brain areas is most likely injured?

Responses

• Cerebellum

• Hypothalamus

• Parietal Lobe

• Frontal Lobe

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

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

• Possible muscle contractions

A research team lesioned the lateral hypothalamus of a rat and then monitored the rat’s activity when it recovered from the surgery. Their hypothesis is likely to be that the rat would do which of the following?

• Experience impaired short term memory in learning a maze

• Form extreme fear responses to nonthreatening stimuli

• Show reduced eating behavior

• Display increased sociability toward other rats

The limbic system is most closely associated with

• Logic and resoning

• decision making

• emotions

• sensory sensitivity

The explanation that holds that dreams are merely the brain’s attempt to make sense of meaningless patterns of brain activity during sleep is best identified as which of the following theories?

• Activation-synthesis Theory

• Psychoanalytic Theory

• Social Learning Theory

• Cognitive Theory