Which of the following statements is true about brain waves?
A. Theta waves are slower and lower in energy than alpha waves.
B. Beta waves are higher in energy than alpha waves.
C. Alpha waves are slower and lower in energy than theta waves.
D. Alpha waves are more rapid than beta waves.
Answer: A
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Susan, age 9, has played soccer for years. She used a straight-leg kick every time for a while, but recently she began to try to bend her leg more, depending on the type of kick. As a result, sometimes she makes errors and sometimes she has a superior kick. Just recently she has been able to execute many types of kicks with much greater success. What feature of developmental systems theory does this scenario illustrate?
A. Change simultaneously occurs in several components. B. The child's motor system is permanently destabilized. C. The body must wait for environmental factors to kick in. D. The child's motor system is unstable for a while, but then self-organizes into a new system of action.
Which hormone stimulates the adrenal cortex to secrete other hormones that promote muscle development?
a. melatonin b. epinephrine c. norepinephrine d. ACTH e. progesterone
The ventromedial area of the hypothalamus has been destroyed in Ricky the rat's brain. Ricky the rat will
a. eat until he becomes obese. b. refuse to eat until forced to do so. c. drink only a salty liquid. d. refuse to drink until forced to do so.
Lori spends most of her time with a group of friends who share her lack of interest in school and in her interest in using recreational drugs. In social psychological terms, Lori’s group of friends would be called her ____
a. ?in-group b. ?out-group c. ?comrades d. ?cult