5:24 - sleep deprivation, disorders, and dreams Flashcards
insomnia
- recurring problems in falling asleep or staying asleep, as well as dreaming
- 1 in 10 adults, 1 in 4 elders
- after middle age, it is no longer a disorder
narcolepsy
- uncontrollably falling asleep and directly going into REM
- 1 in 2000 people
- absence of hypothalamatic neural center that produces neurotransmitters
- brain disease
sleep apnea
- temporarily stopping breathing during sleep — waking up repeatedly
- 1 in 10 people have it
- increases blood oxygen which causes arousal
- deprived of slow-wave sleep
- associated with obesity
- warning signs: loud snoring, daytime sleepiness, irritability, and high blood pressure
night terrors
- high arousal and being terrified during NREM-3 sleep within 2-3 hours of falling asleep.
- seldom remembered
- affect mainly children
- may sit up/walk, talk incoherently, doubled heart and breathing rates
- seldom awake fully during an episode
dreams
- a sequence of images, emotions, and thoughts in a sleeping person’s mind.
- hallucinatory imagery, discontinuities, and incogruities.
- 80% of dreams have negative elements
- 10% of dreams for men and 3.33% for women are sexual
- incorporates elements of previous days’ nonsexual experiences and preoccupations
- post-trauma = nightmares
manifest content
according to Freud, the remembered storyline of a dream
latent content
according to Freud, the underlying meaning of a dream
REM rebound
REM increases following REM sleep deprivation, crearted by repeated awakenings during REM sleep.
what processes emotional experiences and fights depression?
REM
what can sleep deprivation cause?
fatigueness, difficulty studying, obesity and mistake making.
do people who sleep longer tend to live longer?
yes, because sleep deprivation surpresses immune cells that fight off viral infetions and cancer.
how is the brain affected by sleep loss?
diminished attention and memory, as well as an increase in depression
how is the heart affected by sleep loss?
high blood pressure
how is the immune system affected by sleep loss?
slow immune cell production and increased risk of vital infections, such as colors.
how are fat cells affected by sleep loss?
increased production and risk of obesity
