Lecture 5

Lecture 5 - Consciousness Psychology 101 David L Penn Ph.D...

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Consciousness Psychology 101 David L. Penn, Ph.D.
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Levels of Consciousness Conscious level Nonconscious level Preconscious level Subconscious level
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Consciousness and the Brain EEG Brain waves Beta Alpha Theta Delta
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Table 5.1, page 130 Table 5.1 EEG Patterns Associated with States of Consciousness.
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Sleep: Stages Stages one and two Light sleep Theta waves Stages three and four Deeper sleep Delta waves Stage five REM sleep Beta waves The stages repeat themselves every 45-60 minutes over the course of the night. REM sleep increases in length and deep sleep (stage 4) decreases in length as the night progresses
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Sleep Sleep is essential to health Helps maintain mood, memory and cognitive performance Plays pivotal role in normal endocrine and immune functions
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Figure 5.10, page 152 Figure 5.10 Variation in sleep needs.
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Epidemiology of Sleep 58% Adults Snore 36% Complain of Insomnia 15% note persistent Excessive Daytime Sleepiness 3% Unusual Nocturnal Behaviors 28% Workforce on night or rotating shifts
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Most Common Complaints Regarding Sleep Excessive Daytime Sleepiness Difficulty Initiating or Maintaining Sleep Unusual Nocturnal Events
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Sleep and our Biological Clock Biological clock Circadian Rhythms From the Latin, “circa” (about) and “dies” (day) Violations in circadian rhythms Re-setting circadian rhythm zeitgebers
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Sleep Academic Award 14 Jet Lag - Symptoms: Sleep disturbance Daytime fatigue Gastrointestinal distress Tired muscles Headaches Reduced cognitive skills Poor psychomotor coordination Moodiness General malaise
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Sleep Academic Award 15 Jet Lag - Factors: Number of time zones crossed Age (worse over 50)
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Lecture 5 - Consciousness Psychology 101 David L Penn Ph.D...

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