What impact does myelination have on an adolescent's brain?
A. Myelination causes the burst in synaptogenesis.
B. Myelination causes the synaptic pruning that makes brain functioning more efficient.
C. Myelination triggers the end of puberty.
D. Myelination leads to an increase in the brain's white matter, speeding communication between the right and left hemispheres.
Answer: D
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Coma researcher Steven Laureys and his colleagues used fMRI to reexamine 54 patients previously diagnosed as being in a persistent vegetative state, or brain dead. Patients were repeatedly asked to imagine swinging a tennis racquet or walking down a familiar street. Five of the patients showed clearly different brain activity to the two tasks despite being unable to communicate with doctors in any other way. These results suggest that not all patients are brain-dead, but instead some may have
a. Broca's aphasia.
b. spatial neglect.
c. locked-in syndrome.
d. neurogenic agnosia.
Which of the following first identified many of the defense mechanisms and believed that these defense mechanisms were unconscious?
a. Stanley Schachter b. William James c. Sigmund Freud d. Abraham Maslow
According to your book, if one identical twin develops schizophrenia before the other, the best protection against developing schizophrenia is to do which of the following?
A. It is best to remove the second twin to a different environment. B. You should treat the second twin in the same manner as the first twin. C. You should not worry, since the incidence is so low. D. Little to nothing, since genetics is such a strong component.
Which of the following was once viewed as form of "hysteria"?
a. conversion disorder b. dissociative identity disorder c. dissociative fugue d. hypochondriasis