Repetitive, cyclical patterns of behavior are known as

When people work on a task jointly with someone else (e.g., putting together a large bookcase), each person tends to put in less effort than he or she would if working alone

Indicate whether the statement is true or false

Messages carried by large, fast nerve fibers can prevent the slower, "reminding system" pain from reaching the brain by

a. closing the spinal gate directly. b. passing through the pain gate and on to a central biasing system. c. inhibiting the production of endorphins. d. causing rapid sensory adaptation.