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Sleep - Coggle Diagram
Sleep
Sleep deprivation
Causes
Pre existing disease
OSA
Surgical stress
Pain
Sympathetic stimulation
Phamacological
Benzodiazepines <REM
Barbituates <REM
Envirnmental
Noise
Bright lights
Tempreture
Sleep disorders
Insomnia
Parasomnia
Narcolepsy
Sleep paralysis
Periodic limb movement
Restless leg syndrome
Obstructive sleep apnoea
ITU
Average <2 hours/day
<6% REM
Sleep deprivation
Cognitive dysfunction
Immunity
Thermal regulation
Depression
Hallucinations
Tremors
Definition
Conciousness
Content ie higher cognitive functions, awareness of self and surroundings
Arousal - respinsiveness to external stimulation and inner need
Coma
Unarousable unresponsiveness
Sleep
natural and recurring state of unconciousness
Easily roused
Causes
Coma
Intact Brainstem function
No lateralising signs
Endocrine
Repiratory
Pecyiatric
Metabolic
Alcohol, drugs, toxins
Laterlising sings
Vascular
TBI
Infection
Neoplasia
Brainstem dysfunction
Herniation
Mass lesion
Central pontine demylinosis
Leukoencephalopathy
Recovery
Minimal concious state
No arousal
Some Content
Vegetative State
Arousal
No content
Regulation
Sleep
NREM75%
N1 8-13hz alpha waves
Theta waves
N2 11-16Hz - Beta = >13Hz
Sleep spindles
K complexes
N3 slow wave sleep
Delta waves
REM25%
lengthens with each cycle
Sawtooth waveforms
Autonomic excitation
Circadian rtythm 5-6 cycles per night
Reticular formation
Thalamus
Active inhibitory process
Preoptic region induces sleep
Hypothalamus
Suprachiasmatic nucleus pacemaker
Pineal gland
Melatonin
Caffine blocks affect of adenosine