In the human brain, about how many neurons use serotonin as their primary neurotransmitter?
a. 200,000
b. 1 million
c. 200 million
d. 1 billion
a
You might also like to view...
In contrast to Hermann Ebbinghaus, William James was more likely to focus on
a. well-controlled experiments. b. a behavioral approach to memory and language. c. people's everyday experiences. d. clear operational definitions.
One might expect that classical conditioning was discovered by a psychologist. However, it was discovered by a
a. physician who was studying the age at which children start to walk. b. physiologist who was studying memory processes in monkeys. c. physiologist who was studying digestion. d. dog trainer who was trying to come up with the best way to reward animals for their performances in his shows. e. neurologist who was studying unconscious motivations behind behaviors.
Tim is studying for a test. After seven consecutive hours of studying, he finds he can remember what he just finished studying, but he can no longer remember what he studied five or six hours ago. Tim's memory problems are best explained by ________
a. retroactive interference b. proactive interference c. memory diffusion d. retrograde amnesia
The wavelength of the light to reach your eyes determines what _______ you see
a. brightness b. hue c. saturation d. fine detail