What is the cause of Williams syndrome?
a) Lesioning of the prefrontal cortex.
b) Having only one sex chromosome.
c) A deletion of part of chromosome 7.
d) A loss of oxygen to the brain during birth.
e) Trisomy of the 21st chromosome.
Answer: C
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Regarding Ecstasy use, which of the following statements is FALSE?
a. Ecstasy causes brain cells to release extra amounts of acetylcholine. b. Ecstasy diminishes sexual performance, impairing erections and delaying orgasms in both men and women. c. Ecstasy intensifies the impact of the music at "rave" parties, overstimulating the brain and resulting in a "rebound" depression. d. Ecstasy use in North America has declined slightly from a peak around 2002.
In one study by Wright, people high in __________ had less gray matter in parts of the left hemisphere than people low in ___________
a. Introversion; Introversion b. Extraversion; Introversion c. Neuroticism; Extraversion d. Neuroticism; Neuroticism