Chapter 6: States of Consciousness
Learning Objectives
- Draw a graphic showing the usual phases of sleep during a normal night and notate the characteristics of each phase.
 - Review the disorders that affect sleep and the costs of sleep deprivation.
 - Outline and explain the similarities and differences among the different theories of dreaming.
 - Summarize the major psychoactive drugs and their influences on consciousness and behaviour.
 - Review the evidence regarding the dangers of recreational drugs.
 - Review the ways that people may alter consciousness without using drugs.