Circadian rhythm

Consciousness: Some occur spontaneously: Daydreaming, drowsiness, dreaming. Some are physiologically: Hallucination, orgasm, food or oxygen, starvation. Some are psychologically induced: Sensory deprivation, hypnosis, meditation. Bodily Rhythms Biological Rhythms: periodic physiological fluctuations Grizzly bears hibernating Sleep length Female menstrual cycle 24-hour day cycle (alertness) 90-minute sleep cycle Circadian Rhythms: biological clock that regulates bodily rhythms on a 24-hour cycle. Influenced by LIGHT -> causes our pineal gland to increase or decrease production of melatonin. With age, we shift from night owls to morning birds. What would happen if a person was put into a cave for a long period of time without any light? The body works on a natural 25-hour clock.

Chapter 5 Outline Part 2 World of Dreams

Subject:

Psychology

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Sleep

Biology

Mind

Dreaming

Rapid eye movement sleep

Non-rapid eye movement sleep

Dream

Chapter 5 Outline On the Nature of Consciousness Consciousness is the awareness of internal and external stimuli. Includes: Awareness of external events (the professor asked me a hard question) Awareness of internal events (my heart was starting to race and I was sweating) Awareness of yourself as the unique being to experience this (why me?) Your awareness about the thought of these experiences (I?m going to make a fool of myself) Consciousness never stops and it would be an endless thought of ideas. William James nicknamed this ?the stream of consciousness? Variations in Levels of Awareness Freud argued that people?s feelings and behavior are driven by unconscious needs, wishes and conflicts.