1 / 31


CONSCIOUSNESS. Did you know. World Record – Longest period of time a human has intentionally gone without sleep (no stimulants) Randy Gardner (1964) 17-years old 264 Hours (11 days) Held Press Conference on last day – spoke without slurring

Télécharger la présentation


An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.


Presentation Transcript


  2. Did you know... • World Record – Longest period of time a human has intentionally gone without sleep (no stimulants) • Randy Gardner (1964) 17-years old • 264 Hours (11 days) • Held Press Conference on last day – spoke without slurring • Health was monitored – negative cognitive & behavioral changes were reported • After falling asleep – slept 14 hours, 40 minutes.

  3. Facts • Although some people insist they NEVER dream, research suggests EVERYONE dreams during the night • In sleep labs, people wakened from REM periods report 80-100% were dreaming w/ vivid & colorful images (even bizarre, abnormal things were reported vividly)

  4. Consciousnessrefers to different levels of awareness of one’s thoughts and feelings • Alertness to nonalertness • Not completely aware = altered state • i.e. sleep


  6. SLEEP


  8. There are two (2) major types of sleep 1. REM sleep, a stage of sleep characterized by rapid eye movements, a high level of brain activity, a deep relaxation of the muscles and dreaming • This is the time when we will dream. • “Active sleep” • 15 minutes (beginning of night) to 45 minutes (end of night) • Your voluntary muscles are paralyzed.

  9. 2. NREM sleep. This stands for non-rapid eye movement and is the other type of sleep. • Where we spend the majority of our sleep time • Divided into 4 stages (first four) • Decreases in length as nights’ sleep progresses. • “Quiet sleep”


  11. WHAT HAPPENS IF I DON’T GET SLEEP? • It can affect immune system. • It can cause you to hallucinate. • You will have less energy. • Your cognitive performance can be affected.

  12. Texting and sleep • 2010 Research – Average teen sends more than 100 text messages per day. • Major cause of sleep deprivation in teens • Texts may awaken you and decrease sleep • Playing games on your phone before bed can prevent sleep • Study showed that 77.5% of teens that text or surf web at night have trouble falling asleep • Can cause mood, behavior, and cognitive problems during the day including ADHD, anxiety, depression

  13. CIRCADIAN RHYTHM 24-hour biological clock; genetically programmed; regulates physiological responses Disrupting the circadian rhythm causes problems Sleep is regulated by environment/industrial clock, NOT your circadian rhythm POTENTIAL PROBLEMS?

  14. Problems that can result from disrupting the circadian clock • Accidents (body prepared for sleep, trying to stay awake to drive, alertness decreases) • Jet lag • Illness

  15. Your circadian rhythm for body temperature influences your sleep preferences

  16. Treating Circadian Problems • Melatonin - supplements have been proven to help people sleep

  17. Sleep Disorders

  18. Insomnia • Persistent problems falling asleep • Effects 10% of the population • Primary insomnia: Primary insomnia means that a person is having sleep problems that are not directly associated with any other health condition or problem. • Secondary insomnia: Secondary insomnia means that a person is having sleep problems because of something else, such as a health condition (like asthma, depression, arthritis, cancer, or heartburn); pain; medication they are taking; or a substance they are using (like alcohol).

  19. Sleep Disorders

  20. Narcolepsy • Suffer from sleeplessness and may fall asleep at unpredictable or inappropriate times. • Directly into REM sleep • Less than .001 % of population. Click above to see Skeeter the narcoleptic dog.

  21. Sleep Apnea • A person stops breathing during their sleep. • Wake up momentarily, gasps for air, then falls back asleep. • Very common, especially in heavy males. • Can be fatal.

  22. Night Terrors • Wake up screaming and have no idea why. • Not a nightmare. • Most common in children (boys) between ages 2-8.

  23. NIGHTMARES & NIGHT TERRORS Nightmares – unpleasant dreams occur during REM Night terrors – sleep disruptions in stage IV; involve screaming, panic, confusion; often no memory of it SLEEPWALKING Most common in young children – will outgrow it Linked to stress, fatigue, drug use

  24. Somnambulism • Sleep Walking • Most often occurs during the first few hours of sleeping and in stage 4 (deep sleep). • If you have had night terrors, you are more likely to sleep walk when older.

  25. DREAMS Everybody dreams Often incorporate everyday activities into dreams FREUD (Dream interpretation): Dreams have hidden meaning/reveal the unconscious • MANY DREAM THEORIES: • problem-solving theory • mental housecleaning/clean brain • extending waking life

  26. HYPNOSIS state of consciousness resulting from a narrowed focus of attention and characterized by heightened suggestibility USES: • entertainment • pain reduction • quit smoking

  27. MEDITATION The focusing of attention to clear one’s mind and produce relaxation USES: • lower blood pressure, heart rate • benefits vary greatly

  28. DRUGS & CONSCIOUSNESS PSYCHOACTIVE DRUGS: chemicals that affect the nervous system and result in altered states • Stimulants: elevate mood, increase energy & alertness • caffiene • cocaine • Meth • Depressants: slow down nervous system • alcohol • sleeping pills • Hallucinogens: change persons perception of reality • marijuana • LSD

  29. MARIJUANA & ALCOHOL • Marijuana • the dried leaves and flowers of Indian hemp (cannabis sativa) that produce altered states of consciousness • effects vary from person to person, situation to situation • studies suggest more dangerous to lungs than cigarette • disrupts memory formation • psychological addiction? • Alcohol • can loosen inhibitions • despite stimulating effect is a depressant • Can cause brain and liver damage • underage drinking has actually decreased

More Related