Why do the wrinkles and folds of the cortex represent a triumph of evolution?
A) Wrinkles and folds allow for faster communication between neurons.
B) Because the outward appearance of the brain does not confer a competitive advantage in reproduction, no energy was spent correcting for the wrinkles and folds.
C) Wrinkles and folds decrease the amount of cortex material needed to process the same amount of information.
D) Wrinkles and folds increase brain surface area while still allowing it to fit inside the skull.
B) Because the outward appearance of the brain does not confer a competitive advantage in reproduction, no energy was spent correcting for the wrinkles and folds.
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You are struggling to stay awake while driving and realize that you may have "dozed off" for a few seconds. This shift in your brain activity is called
a. a sleep spindle. b. a microsleep. c. somnambulism. d. a sensory deprivation.
In observational learning, the person who serves as an example for the observer is referred to as the
a. antecedent. b. instigator. c. model. d. exemplar.
The adult brains of females have proportionally more____ than the brains of males
a. white matter c. myelinated axons b. neurons d. gray matter
The common feature in almost every case of dissociative identity disorder is
A. hallucinations and delusions. B. unrelenting substance abuse. C. a history of body dysmorphic disorder. D. a history of severe child abuse.