Which of the following is a key a function of the glial cells?
a. protection of the outer surface of the brain
b. removal of physical debris from the brain
c. secretion of CSF in the brain
d. movement of vesicles along the axon
e. the conduction of action potentials
Answer: b: removal of physical debris from the brain
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Babbling refers to producing:
a. different cries to signify different kinds of discomfort b. first words, but with incorrect semantic structure c. combinations of vowel sounds d. consonant and vowel combinations
Mimi, your cat, comes running into the kitchen every time you use the electric can opener. Her vet has instructed you to switch her from canned cat food to dry cat food that comes in a bag. Which of the following will likely occur?
a. She will always come running to the sound of the electric can opener. b. The sound of the bag will not become an effective CS for Mimi. c. Eventually, the sound of the electric can opener will lose its status as a CS for Mimi. d. Mimi will immediately come running to the sound of the bag and not to the sound of the electric can opener.
Which of the following is part of the male internal genitalia?
a. penis b. scrotum c. testes d. vas deferens
Buchanan, Tranel, and Kirchbaum (2009) studied three groups of participants, one of which had damage to the hippocampus, one that had similar brain damage but not to the hippocampus, and a control group of participants. The researchers assessed responses to the three groups both before and after they were exposed to stress. The hippocampus group showed a decrease in cortisol response to stress,
whereas the other two groups shoed increases. Which of the following statistical tests was used to test the hypothesis? a. A main effect.. b. A multiple regression. c. An interaction.d . A correlation.