Examlex
Dr. Skinner wants a pigeon to learn to peck a button in its cage. He first records how often the pigeon pecks the button. Then, after 3 days, he begins to give food to the pigeon every time it pecks the button. The pigeon's rate of pecking the button increases. After 3 days, he quits giving the pigeon food contingent on its pecking the button. The pigeon's rate of pecking the button decreases. After 3 more days, Dr. Skinner begins giving the pigeon food for pecking the button again, and its rate of pecking increases again. What kind of experimental design has Dr. Skinner used?
Manic Episodes
Describes periods of extremely elevated mood, energy, and unusual thought patterns, often associated with bipolar disorder.
Lobotomy
A surgical procedure that involves cutting into the prefrontal lobe of the brain, once used to treat mental disorders but now largely discredited.
Eye Socket
A bony region containing the eyeball; also known as the orbit.
Medical Instrument
A tool or device designed for use in the diagnosis, monitoring, treatment, or prevention of medical conditions.
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