Chapter 4 - States of Consciousness

Question 1

Homeostasis

Answer 1

is the tendency to maintain a balance, or optimal level, within a biological system.

Question 2

A circadian rhythm

Answer 2

is a biological rhythm that takes place over a period of about 24 hours.

Question 3

suprachiasmatic nucleus (SCN)

Answer 3

The brain’s clock mechanism is located in an area of the hypothalamus known as the suprachiasmatic nucleus (SCN)

Question 4

Evolutionary psychology

Answer 4

is a discipline that studies how universal patterns of behavior and cognitive processes have evolved over time as a result of natural selection.

Question 5

Obstructive sleep apnea

Answer 5

occurs when an individual’s airway becomes blocked during sleep, and air is prevented from entering the lungs.

Question 6

central sleep apnea

Answer 6

disruption in signals sent from the brain that regulate breathing cause periods of interrupted breathing