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Module 1.4a REVIEW

1.4-1 Why are psychologists concerned with human • Neural plasticity is strongest in childhood, but it contin-
biology? ues throughout life.

• Researchers working from a biological perspective study 1.4-3 How do neuroscientists study the brain’s
the links between our biology and our behavior. connections to behavior and mind?
• We are biopsychosocial systems: biological, psycholog- • Case studies and lesioning first revealed the general effects
Distributed by Bedford, Freeman & Worth Publishers. Not for redistribution.
ical, and social-cultural factors interact to influence of brain damage.
behavior.
• Modern electrical, chemical, or magnetic stimulation also
1.4-2 How do biology and experience together reveals aspects of information processing in the brain.
Copyright © Bedford, Freeman & Worth Publishers.
enable neuroplasticity? • CT and MRI scans show anatomy. EEG, MEG, PET, and
fMRI (functional MRI) recordings reveal brain function.
• Our brain’s neuroplasticity allows us to build new neural
pathways as we adjust to new experiences. Our brain is
a work in progress, changing with the focus and practice
we devote to new ventures.

®
AP Practice Multiple Choice Questions

1. Researchers wanted to determine the brain waves present 4. When Amita is in a car accident, her neurologist,
when individuals were sleeping. They placed electrodes Dr. Lang, suspects she has sustained an injury to the back
on the scalps of 100 volunteers, and then asked the of her brain. “Can you check with an EEG?” asks Amita’s
volunteers to sleep in the laboratory each night for one brother. Dr. Lang explains that an EEG is not the best
week. The researchers obtained recordings of the electri- method for assessing this injury, because
cal activity across the volunteers’ brain surfaces. Which of a. an EEG only provides images of how the brain
the following represents the operational definition of the consumes glucose.
dependent variable in this study? b. an EEG only provides images of brain-wave activity.
a. MRI readings c. an EEG only provides still images of the brain.
b. CT readings d. an EEG only provides stimulation to one region of the
c. MEG readings brain.
d. EEG readings
5. Dr. Translucent measures the brain’s electrical activity via
2. Dr. Ultrone uses a technique to measure glucose con- magnetic fields, using a(n)
sumption as an indicator of brain activity. What is the a. CT.
name of this technique? b. EEG.
a. MRI c. PET c. MEG.
b. fMRI d. EEG d. PET.

3. Zoey did a report on the brain’s ability to change in
response to both experience and damage. What was
her report about?
a. Neurostimulation
b. Neuroplasticity
c. Neurobiology
d. Neuropsychology

62 Unit 1 Biological Bases of Behavior

03_myersAPpsychology4e_28116_ch01_002_163.indd 62 15/12/23 9:22 AM