Which of the following is a correct match between a drug and its effect on GABA function?
a. muscimol; agonist at the GABAB receptor
b. picrotoxin; indirect antagonist of the GABAA receptor
c. diazepam; reduces the activity of GABAA receptors
d. baclofen; antagonist at the GABAA receptor
e. nicotine; agonist at the GABAA receptor
Answer: b. picrotoxin; indirect antagonist of the GABAA receptor
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The fetal period is marked by the appearance of ______.
A. bone B. muscle tissue C. the brain D. the indifferent gonad
If research were to show that individuals whose bodies are incapable of becoming physiologically aroused are still capable of experiencing emotion, which theory would have the greatest difficulty explaining that result??
a. ?cognitive-mediational theory b. ?Cannon-Bard theory c. ?incentive theory d. ?James-Lange theory
The big problem with case studies is selection. This is the same as problems associated with _____
a. internal validity c. external validity b. random sampling d. random assignment
Which word in parentheses better fits each of the following definitions?
1. Basic building blocks of the nervous system (nerves, neurons) 2. Cell parts that receive nerve impulses (axons, dendrites) 3. Site of communication between neurons (synapse, myelin sheath) 4. Opiate-like substance in the brain (dopamine, endorphin) 5. Chemicals that make it possible for neurons to communicate (neurotransmitters, hormones) 6. Hormone closely associated with emotional excitement (epinephrine, estrogen)