Chapter 4 Flashcards
1
Q
change blindness
A
we are often blind to large changes because we can’t attend to all visual information
2
Q
subliminal perception
A
unconscious cues that get processed by sensory systems but do not reach consciousness
3
Q
circadian rhythms
A
body temperature, hormone levels, and sleep are regulated by light and dark
4
Q
stages of sleep and their waves
A
alert: beta just before: alpha Stage 1 (barely asleep, floating): theta Stage 2: theta but with large waves called k-complexes that keep you asleep Stages 3/4: delta, deep sleep REM (back up in stage 1): betas
5
Q
obstructive sleep apnea
A
stop breathing for short periods during sleep, often waking them up
6
Q
why we need sleep
A
- encourage growth by releasing growth hormone
- clear out toxic by-products
- evolutionarily it made sense for us to not be active during the day
- consolidation of memories
7
Q
different kinds of dreams
A
REM: bizarre, emotional, visual
non-REM: mundane activities
8
Q
activation-synthesis theory
A
random brain activity occurs and the mind tries to make sense of it and store it with memories
