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States of Consciousness Chapter 4 Part 1

by: Olivia D'Andrea

States of Consciousness Chapter 4 Part 1 PSYCH-11672-001-201610

Marketplace > Kent State University > Psychlogy > PSYCH-11672-001-201610 > States of Consciousness Chapter 4 Part 1
Olivia D'Andrea
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About this Document

These notes cover "States of Consciousness Chapter 4 Part 1." It is a great idea to start preparing for the next exam! Good luck! :-)
General Psychology
Dr. Joynes
Class Notes




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This 4 page Class Notes was uploaded by Olivia D'Andrea on Wednesday February 24, 2016. The Class Notes belongs to PSYCH-11672-001-201610 at Kent State University taught by Dr. Joynes in Spring 2016. Since its upload, it has received 50 views. For similar materials see General Psychology in Psychlogy at Kent State University.


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Date Created: 02/24/16
1 States of Consciousness Chapter 4 (Part 1): Levels of Awareness and Circadian Rhythms  We spend 1/3 of our lives sleeping  Consciousness- awareness of external events and internal sensations while under a condition of arousal (being awake, responding)  Awareness- the subjective state of reflecting about yourself, your thoughts, and your experiences. A form of metacognition.  Metacognition- thinking about thinking  Arousal- physiological state of being engaged with the environment Levels of Awareness  Higher-level consciousness- controlled processing in which individuals are actively thinking and alert --- focused on their tasks and goals. o Ex: Working on a project, studying, learning to play guitar  Lower-level consciousness- automatic processing and daydreaming, which requires little attention and focus o Cerebellum (part of brain that controls balance) takes over o Ex: Driving and texting, singing and playing guitar  Altered states of consciousness- produced by drugs, trauma, and fatigue o Ex: Alcohol, hallucinations 2  Subconscious awareness- usually occurs when people are asleep and dreaming, but also occurs when we are awake o Ex: sleep and dreaming o Occurs in those with brain damage o Not consciously aware, but still able to respond  Blindsight- (subconscious awareness) o Person cannot see still objects, but if the object is moved, the person is aware that something is there  Ability to respond to visual stimuli  Split Brain Patients- processing info at the subconscious level  No awareness- usually occurs when we are knocked out or anesthetized, but may also occur while we are awake Circadian Rhythms  Circadian rhythms: behaviors that synchronize with the 24 hour cycle of the day o Ex: sleep/wake cycle, body temperature (low in the morning and high in evening), blood pressure, blood sugar level  How does your body know what time it is? o Biological clock- brain system that detects the passage of time, using internal and external cues and regulates body systems accordingly  Where is the biological clock located? o Hypothalamus: needs to know what time of day so it can regulate properly o Suprachiasmatic Nucleus (SCN): part of hypothalamus that uses input from the eyes to 3 synchronize its rhythm with the daily cycle of light and dark  Regulates emotions- need light to regulate mood o Zeitgeber- time giver (ex: light)  Need light and dark cues  Clock uses to recalibrate  What happens if you remove the SCN? o Messes up rhythm of sleep o Hamster studies: had SCN removed and it altered their sleep cycle Normal sleep pattern: o Average person has 8 hours o Young adults have 9-10 hours  Effects of sleep deprivation: o Crankiness, irritability, sleepiness o Poor memory o Poor performance o Poor moral judgements o Health costs o ***Sleep deprivation linked to dementia***  What happens to our clock when you disrupt your sleep/wake cycle? ***Arousal is the ENEMY of sleep*** o Travel jet lag o Night shift work o Pulling an “all-nighter” o Insomnia  What can we do to reset our clock? o Sleep and wake up at appropriate times o Exposure to appropriate light/dark cues o Melatonin (hormone body makes)  Released later in evening  Makes you sleepy 4  Morning: melatonin levels are lowest


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