According to the all-or-none law, ____
a. all neurons produce an action potential at the same time or none at all
b. all of the extracellular sodium enters the axon, or none at all
c. once an axon reaches threshold, the amplitude and velocity of an action potential are nearly equal each time
d. neurons are either active all the time or not at all
c
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After showing picture after picture of a cat to a baby, the researcher then shows the baby a picture of a dog. What does the baby do when shown the picture of the dog?
a. He habituates to the dog as well. b. He dishabituates to the picture of the dog. c. He dishabituates to the pictures of the cat. d. He does nothing.
Sara has had a string of failed romantic relationships over the past 3 years. Her partners tend to tell the same story: Sara often can't tell when they are mad at her, and doesn't seem able to express her own feelings. If her exes' complaints are accurate, Sara would likely score low on tests of _________ intelligence.
a. emotional b. componential c. general d. tacit