Brain States And Conciousness Flashcards
(61 cards)
A subfield in which people from many disciplines join forces to study connections between brain activity and mental processes, including states of consciousness
Cognitive neuroscience
Our awareness of ourselves and our environment
Consciousness
A telltale sign of _____ appears in brain scans as a pattern of strong signals bouncing from one brain area to another
Conscious awareness
Conscious awareness forms one track of the ____
Dual track mind
Your awareness purposes, like a flashlight beam, on a very limited aspect of all that you experience.
Selective attention
Because our attention is _____ , in one place at a time, multitasking comes at a cost
Selective
When your interest is focused on something else and you don’t notice something else in the picture
In attentional blindness
By selectively riveting our attention on their left hands dramatic act we fail to notice changes made with their other hand. Not noticing when one person is switched out for another during a task
Change blindness
Your body is reacting in part to its own wake up call. The human body is kept roughly in tune with the 24 hour cycle of day and night by and internal biological clock called the
Circadian rhythm
Most college students are owls, with performance improving across the
Day
Most older adults are larks, with performance ____ as the day wears off
Declining
Every ____ minutes, we cycle through distinct sleep changes
90
____ is marked by slow breathing and irregular brain waves
Non REM sleep
During this brief __ you may experience fantastic images resembling hallucinations
NREM-1
Leading to sleep
Hypnagogic
20 minutes later when you relax more deeply you fall into ____ - bursts of rapid, rhythmic brainwave activity.
NREM-2
You enter the stage a deep sleep. During the slow wave sleep, which last about 30 minutes, your brain Emits. Large, slow delta waves. You would be hard to awaken. This is the stage for children may wet the bed
NREM-3
An hour after sleep your body starts to reverse course. For 10 minutes, brain waves are rapid and sawtoothed. Your heart rate rises and your breathing becomes a rapid and irregular. These Eye movements announce the beginning of a dream, often emotional, story like and richly hallucinatory
REM sleep
During very scary dreams, and during REM sleep you can become
Aroused
Your brains _____ is active during REM sleep, but your ____ blocks it’s messages
Motor cortex, brainstem
This is sometimes called a paradoxical sleep
REM sleep
Sleep cycle repeats itself about every _____ minutes for younger adults
90 minutes
As the night wears on, deep ____ sleep becomes shorter and disappears
NREM-3
While NREM-3 grows shorter and disappears, _____ sleep periods get longer
REM and NREM-2
