Consciousness Flashcards
______ is our awareness of ourselves and our environment
Consciousness
_________ is when our awareness focuses on only a limited portion of what we experience
Selective Attention
________ is the failure to see visible objects when we are attending to another task
Inattentional blindness
________ can only be in one place at a time
Conscious attention
We spend about ___ of our lives asleep
1/3
If you live to 75 years old, you will have slept ___ years
25
The period of time needed to fall asleep is ________
Sleep latency
Normal sleep duration time:
6-9 hours
Normal position changes per night:
20-40
Night awakenings per night (+ what increases the number):
1-2 → increases with age
REM stands for:
Rapid-Eye Movement
During REM, there are lots of ________
brain activity (lots of EEG waves)
During REM, ________ are most relaxed (“paralyzed”)
postural muscles
During REM, we experience loose ________
associative thinking
When deprived from REM sleep, what are 2 effects that can happen?
1- subjects attempt to increase REM
2- mild temporary personality changes
Animals increase REM after learning something:
Memory Storage
Rem is necessary to get _____ to the corneas
oxygen
Why do we need sleep? (4 reasons)
1- Remembering (restore and rebuild memories from the day)
2- Protective
3- Recuperation (restore and repair brain tissue)
4- Growth (growth hormone released during deep sleep)
5 sleep deprivation effects:
1- fatigue 2- impaired concentration 3- immune suppression 4- irritability 5- slowed performance
Humans last around 24.2 h:
Endogenous circadian rhythms
Main control center for sleep and temperature circadian rhythms:
Suprachiasmatic Nucleus (SCN)
2 things that reset the clock:
1- Light
2- Melatonin
___ % of dreams are forgotten
95
Lucid dreaming:
Controlling actions during sleep
The tendency for REM sleep increases following REM sleep deprivation:
REM Rebound
Why do we dream?
An outlet for unacceptable feelings and information processing
Which sleep disorder is a persistent problem in falling or staying asleep?
Insomnia
What are the natural remedies of insomnia?
Exercise; avoiding caffeine; dim lights; avoid naps; same wake up time; turn away clocks
Which sleeping disorder is the uncontrollable sleep attacks (lapsing directly into REM sleep, often at unfortunate times)?
Narcolepsy
Which sleep disorder intermittently stops breathing during sleep, then has frequent momentary awakenings?
Sleep apnea