Researchers studying opiates such as morphine were surprised that they fit exactly into neural receptors. The reason is that the brain produces its own version of an opiate for pain relief, called:

A) norepinephrine.
B) endorphins.
C) serotonin.
D) opium.


B) endorphins.

Psychology

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Describe the difference between positive and negative symptoms of schizophrenia and give some examples of each.

What will be an ideal response?

Psychology

By week _____ fat begins to form

A) 6 B) 12 C) 18 D) 24

Psychology

Emmett, at 4 months of age, smiles, signaling that he wants to be picked up. According to Tronick's mutual-regulation model, if his mother fails to pick him up, Emmett will probably

A. keep smiling. B. begin paying attention to something or someone else. C. become passive and withdrawn. D. try another way of getting her attention, like crying.

Psychology

According to Pronin and Jacobs, thought speed is one property of a more general concept called

A) ?mental motion. B) ?thought variability. C) ?affect. D) ?mood adjustment.

Psychology