Dream Disorders

University:
The University Of Western Ontario
Course:
Pathology 3500B | Human Pathology
Academic year:

2023
Views:

266

Pages:

2
Author:

Kyuwon J.

Dream disorders ● Insight into brian function + mental health status ● Neurosis = specific brain region and neurotransmission system linked to dreaming ● Sleeping disorder can show neurological psychiatric Sleeping disorders + Dreams ● Narcolepsy ○ Excessive daytime sleepiness ○ Sudden loss in muscle tone ■ Cataplexy ○ Hypocretin deficiency in hypothalamus ○ Patients may enter REM sleep ○ Cause dream like hallucination in sleep onset ● REM sleep Behavioural Disorders ○ Act during REM sleeps ○ Normally associated in paralysis of muscles ○ Could be early signs of Parkinson’s disease ( or other neurodegenerative diseases) ○ Suggest malfunction on brainstem regions ■ Responsible on inhibition ● Sleep walk ○ Sinbanbulism ○ Deep NREM sleeps ○ Unconscious activity of patients ○ All disorders are in REM sleep ● Sleeps stages cycles continuously ○ Usually 4-6 cycles ● Stage 1 ○ Transition from full awareness => sleep ○ Easy to be in full awareness stage again ○ Few minutes needed for transitions ● Stage 2 ○ Heart rate decreases ○ BT drops ○ Brain activity bursts ○ Largest portion of sleep ● Stage 3-4 ○ Hard to wake up at this point ○ Growth hormone release ○ Tissue repair ○ Immunization strengthening ○ Stage 4 ■ Deepest sleep ■ Dominated by Delta brain waves ■ About 10-15% of total sleep in adults ■ Memory role ● Declarative memory consolidations ● facts , knowledges Rem sleep ● Appears in 90 min mark after sleeping onset ● First REM ○ Short ○ Lighter sleeps ● Later REM ○ Longer ● Muscles paralyzed ○ Acting out of dream = if not sleep walking occurs ○ ex) ■ Person thinking of of playing soccer and is not paralyzed = kicks in bed and falls out of bed ● Significant in memory consolidation + regulation of emotes ○ ex) ■ Prior to stressful day REM involves in processing emotions ■ Replay on arguments + symbolics ○ ex2) ■ After studying for vocabulary and have a sleep ■ Store those words in long term memory