REM Sleep

What is the activation-synthesis model of dreaming?

A.S.M (Hobson & McCarley) proposes that dreams are the brains attempt to make sense of random neural activity that occurs during REM sleep. ( Dreams are the brain telling a story" to explain internal spontaneous signals)

What serves as the activation?

- Random bursts of neural firing from the brainstem (pons)

Where does the synthesis take place?

- In the forebrain especially the celebral cortex

_ Cortex interprets the random activity and tries to organize into a story creating the dream

What does an EEG measure?

Records electrical activity (many neurons) -> brain waves

What did EEG's reveal about sleep?

Sleep has multiple stages with different patterns including slow-wave sleep, deep sleep, and active REM sleep

What is a sleep deficit?

is what happens when you don’t get enough sleep over time, and the “lost hours” start to add up

What are some hazards of a sleep deficit?

Poor attention and concentration, slower reaction time, memory problems, mood changes, weaker immune system, and heart problems