States of Consciousness
Introduction to Consciousness and Rhythms
What you’ll learn to do: describe consciousness and biological rhythms
Are you tired? Have you ever pulled an all-nighter? How did you feel the next day? Do you think your lack of sleep impacted your behavior? Chances are, you could answer that question with a resounding, “yes!”. Because psychologists are interested in mental processes and behavior, it’s essential to study consciousness, or our awareness, as humans. States of consciousness vary over the course of the day and throughout our lives, and sleep plays a major role in alertness levels. Important factors in daily changes in consciousness are biological rhythms, and, more specifically, the circadian rhythms generated by the suprachiasmatic nucleus. Typically, our biological clocks are aligned with our external environment, and light tends to be an important cue in setting this clock. When people travel across multiple time zones or work rotating shifts, they can experience disruptions of their circadian cycles that can lead to insomnia, sleepiness, and decreased alertness. If people go extended periods of time without sleep, they will accrue a sleep debt and potentially experience a number of adverse psychological and physiological consequences.
Learning Objectives
- Describe consciousness and circadian rhythms
- Explain disruptions in biological rhythms, including sleep debt
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CC licensed content, Original
- Modification, adaptation, and original content. Provided by: Lumen Learning. License: CC BY: Attribution
CC licensed content, Shared previously
- What is Consciousness?. Authored by: OpenStax College. Located at: https://openstax.org/books/psychology-2e/pages/4-1-what-is-consciousness. License: CC BY: Attribution. License Terms: Download for free at https://openstax.org/books/psychology-2e/pages/1-introduction
Public domain content
- Authored by: Robert Fludd. Provided by: Wikipedia. Located at: https://en.wikipedia.org/wiki/Consciousness#/media/File:RobertFuddBewusstsein17Jh.png. License: Public Domain: No Known Copyright