According to Piaget, which is not a characteristic of the preoperational stage?
a. ability to practice conservation
b. egocentrism
c. confusion between mental and physical events
d. ability to focus on only one dimension at a time
A
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Cocaine influences dopamine, norepinephrine, and serotonin activity
a. True b. False Indicate whether the statement is true or false
Research on the facial feedback hypothesis has shown that ____
a. ?smiles change blood flow to the brain and decrease brain temperature b. ?smiles change blood flow to the brain and increase brain temperature c. ?frowns change blood flow to the brain and decrease brain temperature d. ?frowns, but not smiles, change brain temperature
__________ is the leading cause of death inthe world of children under 5 years of age
Fill in the blanks with correct word
Sexual cephalalgia refers to
a. thinking too much about sex b. severe headaches during sex c. being fixated in the cephalic stage of psychosexual development d. having an allergic reaction to sex