Consciousness
How does consciousness help us make sense of our life?
sensations, emotions, and choices
What are the 4 stages of sleep?
NREM 1, NREM 2, NREM 3, REM
How does sleep deprivation affect us?
mood, focus, weight, immune system
What is the absolute threshold?
minimum stimulus energy we can detect 50% of the time
What part of the eye detects color?
cones
How does dual processing work?
We process information simultaneously on conscious and unconscious tracks.
regular bodily rhythms that occur in a 24-hour cycle
Define insomnia.
trouble falling and staying asleep
What law says stimuli must differ by a constant minimum percentage for humans to detect that difference?
Weber's Law
What is the vestibular sense responsible for?
sense of movement and body position, which enables balance
cognitive neuroscience definition
study of brain activity linked with cognition
How are sleep stages defined?
the distinct brain wave patterns that happen in that stage
What is REM sleep disorder and why is it dangerous?
lack of sleep paralysis in REM; leads to abrupt movements that can cause injury
What is the difference between sensation and perception?
Sensation detects information from the environment, perception is the process of interpreting the information
olfaction/gustation
Why can't an experiment be done on unresponsive patients?
It is unethical because they are not able to provide fully informed consent (not in a logical state of mind).
Why do humans need sleep?
protection, restoration, consolidation, creative thinking, supporting growth, conserving energy
Why can't we see our blindspot?
the brain fills in the missing information
Why is it a problem if humans cannot feel pain?
They are unable to determine if something's wrong in their body.
Which is faster - parallel processing or sequential processing?
parallel processing
What is the main function of the suprachiasmatic nucleus?
control circadian rhythm and adjust melatonin
How much time do we spend in NREM2?
40-50% of our sleep
What kind of gene expression is color-deficient vision?
recessive (2 copies needed to exhibit a phenotype)
What is touch composed of?
pressure, hot, cold, and pain