While action potentials provide simple all-or-none responses, synapses have responses that are ______.
A. faster
B. less variable
C. constant
D. more complex
Answer: D
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Which of the following cause the colors we see to appear brighter or more intense?
a. narrow bands of wavelengths b. broad bands of wavelengths c. waves of greater amplitude d. waves of lower amplitude
Caitlin, age 4, visited the city zoo, pointed to a zebra, and exclaimed, "Look at the horse with stripes!" In describing the zebra, she used
logical extension. fast-mapping. overregularization. theory of mind.
To represent three-dimensional objects in his paintings, Louis used
a. texture gradient. b. perspective. c. shadows. d. retinal disparity.
The use of MDMA or ecstasy can lead to serious, and perhaps permanent, memory problems. What is the proposed cause of this effect of MDMA use?
a) Neural transmission is disrupted by MDMA use. b) MDMA is toxic to axons in brain areas associated with memory. c) MDMA induces large releases of serotonin, which can destroy neurons. d) Levels of all neurotransmitters are so depleted that they do not work effectively.