Chapter 4: Physiological Psychology: Biological Rhythms, Sleep, and Dreaming
Biological Rhythms, Sleep, and Dreaming
There is a wide variety of biological rhythms—periodically recurring features of biological organisms, which are classified by the period of the cycle. In this chapter we explore biological clocks, and the external and internal cues that act as pacemakers for different cycles.
- Biological Rhythms
- What are circadian, infradian, and ultradian rhythms?
- Why do we need biological rhythms?
- What happens when biological rhythms are disrupted, as in jet lag and shiftwork?
- Sleep
- What happens when people are deprived of sleep for long periods?
- Can people learn to sleep less?
- Is sleep just a waste of time?
- Dreaming
- Is REM (rapid eye movement) sleep the same as dreaming?
- Did Freud believe in dream dictionaries?
- Can dreams help you solve problems?