By the end of the third week of prenatal development, neurons are beginning to form a
primitive structure that will later become the brain and the spinal cord. This is called the
a. primitive brain.
b. hindbrain.
c. neural tube.
d. proximodistal brain.
c. neural tube.
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Steve can't leave home without checking the doors and windows repeatedly to see that they are locked. when he finds that everything is locked, a sense of relief comes over him. which of the following learning principles is likely to be maintaining his compulsive checking behavior?
a. self-reinforcement b. negative reinforcement c. punishment d. positive reinforcement
Repair attempts are best used
a. anytime a discussion escalates into negative tension. b. after a discussion when one is hurt. c. when one partner is wrong and the other right. d. after flooding occurs.