It has been reported that the production of new brain cells from naturally occurring stem cells occurs in the brains of adult mammals. This process is called
a. plasticity.
b. transformation.
c. neurogenesis.
d. reuptake.
Answer: c. neurogenesis
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For which of the following situations would a within subjects design be the more appropriate design?
a. we want to know whether training rats to learn one maze will aid learning a second, different maze b. we want to know whether rats prefer a solution sweetened with sugar more than a solution sweetened with saccharin c. we want to know whether a particular brain lesion will affect a rat's preference for a sweet solution d. we want to know whether ingesting alcohol will increase rats' preference for an alcoholic drink over a non alcoholic drink
Relative to observations of healthy young adults, observations of the brain activity in healthy aging people show a. consistently decreased activation
b. consistently increased activation. c. areas of both increased and decreased activation. d. no differences.
Moderate alcohol use is defined as about______ for women
a. 1 to 3 drinks per week c. 2 to 4 drinks per day b. 1 drink per day d. 4-6 drinks per month
A scientist has concluded that two variables are significantly correlated when in fact they are not. The scientist has
a. made a Type 1 error. b. miscalculated the p-value. c. a small effect size. d. low statistical power.