1.4ABC AP Psych Review

Researchers wanted to determine the brain waves present when individuals were sleeping. They placed electrodes on the scalps of 100 volunteers, and then asked the volunteers to sleep in the laboratory each night for one week. The researchers obtained recordings of the electrical activity across the volunteers’ brain surfaces. Which of the following represents the operational definition of the dependent variable in this study?

• MRI Readings

• MEG Readings

• CT Readings

• EEG Readings

Dr. Ultrone uses a technique to measure glucose consumption as an indicator of brain activity. What is the name of this technique?

• MRI

• PET

• fMRI

• EEG

Zoey did a report on the brain’s ability to change in response to both experience and damage. What was her report about?

• Neuroplasticity

• Neurostimulation

• Neuropathy

• Neurosurgery

Dr. Ludwikowski was interested in studying effects of stress on the brain. She randomly assigned 10 middle-aged participants to experience stress by placing them in a room with a loud, unpleasant noise. The other 10 middle-aged participants were placed in a room with no noise. She then used an fMRI to compare participants’ brain activity.

In this study, what was Dr. Ludwikowski’s operational definition of her dependent variable?

• fMRI results

• Stress

• Noise

• Age

Dr. Ludwikowski was interested in studying effects of stress on the brain. She randomly assigned 10 middle-aged participants to experience stress by placing them in a room with a loud, unpleasant noise. The other 10 middle-aged participants were placed in a room with no noise. She then used an fMRI to compare participants’ brain activity.

In Dr. Ludwikowski’s study, the participants in the room with no noise served as the

• independent variables.

• control group.

• confederates.

• 
  placebo group.

Damage to which of the following puts a person’s life in the most danger because it may cause breathing to stop?

• amygdala

• thalamus

• medulla

• hypothalamus

A gymnast falls and hits her head on the floor. She attempts to continue practicing but has trouble maintaining balance. What part of her brain has probably been affected?

• Reticular formation

• Cerebellum

• Amygdala

• Medulla

Brennan feels hungry. Which brain area is most responsible for his hunger?

• Amygdala

• Hippocampus

• Hypothalamus

• Brainstem

Damage to which of the following brain structures would affect the processing of new explicit memories?

• Cerebral cortex

• Hippocampus

• Medulla

• Hypothalamus

After being late to work for the fifth time, Hester declared “My occipital lobes must not be working optimally! I have a hard time planning my day to be here on time!” If you were Hester’s boss, what might you say to her to modify her claim to make it more accurate?

• “Hester, it’s your frontal lobes that are not working optimally.”

• 
  “Hester, it’s your parietal lobes that are not working optimally.”

• “Hester, it’s your temporal lobes that are not working optimally.”

• 
  “Hester, it’s your somatosensory cortex that is not working optimally.”