The absolute threshold is operationally defined as the stimulus level at which a sensory signal is detected 100% of the time
a. true
b. false
Answer: b. false
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Jay often wakes up with an erection and sometimes experiences erections throughout the night. What is the most likely reason for this? a. Jay looks at porn before falling asleep which causes erotic dreams
b. Jay's REM cycles occur throughout the night and right before he wakes up. c. Jay drinks too much fluid before going to bed which causes the need to urinate and pressure in his penis. d. Jay does not masturbate frequently enough to release built-up amounts of semen.
What usually takes only one trial to condition successfully?
a. operant conditioning c. classical conditioning b. taste aversion d. lever pressing
Three components of food are:
a. carbohydrates, fats, proteins b. carbohydrates, amino acids, proteins c. triglycerides, cholesterol, glucose d. amino acids, lipids, glucose
Over the course of evolutionary history, the female body and pelvis did not grow in size, but the human brain's size _____
a. decreased by half b. did not change c. doubled d. quadrupled