Consciousness Flashcards
(75 cards)
______ 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
