Over the last year, Lauren has repeatedly experienced sympto…

Over the last year, Lauren has repeatedly experienced symptoms that she believes indicate a heart attack, sending her to the emergency room complaining of dizziness, inability to catch her breath, and heart palpitations. She tells her parents she is afraid she’s going to die, although doctors have found nothing physically wrong. It is likely that Lauren is experiencing _______________________.

When Sally ducked to avoid being hit by a snowball, she reac…

When Sally ducked to avoid being hit by a snowball, she reacted quickly because information about that situation was relayed rapidly through the neurons in her brain. A fatty substance that covers axons, called (the) _____________, helps to speed up her neurons’ action potentials.

Kasparov, a former world chess champion, engages in a routin…

Kasparov, a former world chess champion, engages in a routine of touching all his pieces before he makes the first move. Kasparov won 80 out of 100 games when he did the routine and won only 10 out of 100 games when he did not. The touching routine _____________.

Josh is paralyzed from the waist down and has to use a wheel…

Josh is paralyzed from the waist down and has to use a wheelchair. Even though he is confined to a wheelchair, he has always been good at basketball and tries to join a basketball league. The league owners don’t think he’ll be very good at basketball because he is in a wheelchair, and decide that he shouldn’t be allowed to join. The league owners’ refusal to let Josh participate on a team is an example of ________________.

Tommy listens to his music very loudly while his friend Pete…

Tommy listens to his music very loudly while his friend Peter prefers to listen to his music at a much lower volume. Tommy only needs to turn up Peter’s radio one or two notches to hear a difference, but when Tommy is listening to his loud music, he realizes that he needs to turn it up twice as much to notice a difference. This is a demonstration of ___________.