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Download Module 24 Sleep Deprivation, Sleep Disorders, and Dreams
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MODULE 24 SLEEP DEPRIVATION, SLEEP DISORDERS, AND DREAMS Unit 5 States of Consciousness Effects of Sleep Loss • Sleep Debt • Lack of Sleep… • Predictor of depression • Affects performance • Makes you fatter • Increase ghrelin and cortisol, lowers leptin • Lowers immune system • Lowers reaction times and increases errors Major Sleep Disorders • Insomnia • Persistent problem in falling or staying asleep • Narcolepsy • Suddenly falling asleep • Lacking orexin • Sleep Apnea • Stop breathing periodically while sleeping • Night terrors • Waking up terrified, usually in children Dreams • Combination of images, emotions, and thoughts that occur while sleeping. • Can be hallucinatory and irregular • Can be so vivid you think you are awake • Can evoke emotions • Many times reflect the previous days events • Dual track mind allows us to incorporate outside stimuli into dreams Why we dream…Theories • Wish fulfillment/fulfilling desires • Freud: our dreams let us express hostile/sexual we cannot consciously handle • manifest content: dreams actual story • Latent content: underlying message your brain is trying to let out • File away memories • Information processing perspective • Develop neural pathways Theories Cont…. • Make sense of neural “static” (random firing of neurons) • Relies on dual track mind • Reflects cognitive development • Evolution of dreams indicate the development of your mind
