Lecture 8 Flashcards
What is consciousness?
The state of understanding and realizing something
Is consciousness difficult or easy to study in other?
difficult because we assume other humans minds are similar to ours
Is there a mind-body connection with consciousness?
it exists, but extent and the mechanisms are still being researched
What does Freudian Unconscious consists of?
dynamic unconscious and repression
Why is dynamic unconscious as defined by Sigmund Freud?
comprised of a series of hidden memories, desires, and impulses, often from childhood, that are too repulsive/painful to come into conscious awareness.
What is repression?
a mental process that removes unacceptable thoughts and memories from consciousness
What are Freudian slips?
an unintentional error as regarded as revealing subconscious feelings (ex: calling someone the same name)
What is the current view for the cognitive unconscious?
What is subliminal perception?
a thought or behavior that is influenced by stimuli that a person cannot consciously report perceiving
What is circadian rhythm?
a biological rhythm with a period of about 24 hours
What is circadian rhythm impacted by?
genetics, stress, illness, exercise, and drugs
What are examples of internal desynchronization for the circadian rhythm?
jet lag, night shift workers, hormone cycles
The waking brain consists of what waves?
beta and alpha
What can beta waves tell about a person?
they are alert and awake
What can alpha waves tell about a person?
they are relaxing and drowsy
How many stages of sleep are in the sleeping brain?
5
What are the five stages of sleep?
stage 1, stage 2, stage 3, stage 4, and REM sleep
What is stage 1 sleep?
consists of theta waves that denote light sleep
What is stage 2 sleep?
consists of sleep spindles and K complexes that denote sleep where minor noises will not disturb you
What is stage 3 sleep?
consists of delta waves that denote delta activity and brain activity
What is REMs sleep?
REM stands for rapid eye movement where there are beta like waves denoting dreams and muscle paralysis
What happens to dreams the longer we sleep?
the amount of time that we dream increases
Why do we need to dream?
it helps with memory consolidation
What happens to healthy sleep thought the lifespan?
it amount of sleep we need decreases
What is the healthy amount of sleep newborns and adults need?
newborns: 16 hours
adults: 7-8 hours
What would happen when someone interrupts REM sleep often?
there will be memory problems and excessive aggression
What are some effects of sleep deprivation?
hallucinations, increased vehicle accidents, increased depression, and high cortisol levels
How many Americans get less than 7-8 hours of sleep?
2/3 or 66.6%
What is the average hours of sleep American students get?
6 hours
Why do people sleep?
it allows the body to replenish by repairing cells throughout the body, strengthening the immune system, and eliminating the waste from muscles
What are the six sleep disorders?
insomnia, sleep apnea, somnambulism, narcolepsy, night/sleep terrors, and REM Behavior Disorder
What is insomnia?
difficulty falling or staying asleep
How many adults have insomnia?
around 15%
Are sleeping pills a good long term solution for insomnia?
no, because they do not let you get into REM sleep, are addictive, and can cause people to wake up groggy
What is sleep apnea?
when a person stops breathing for brief periods while asleep
Who detects sleep apnea?
the person sleeping next to or near them
Who are most seen to have sleep apnea?
middle aged men
What is somnambulism?
when a person arises and walks around while asleep (sleepwalking)