Sleeping And Dreaming Flashcards
What is activation synthesis theory?
An expression of dreams that focuses on the random activation of neurons and the brain’s efforts to make sense of this through synthesis
When do we dream?
REM sleep
Where do signals come from in activation synthesis?
Pons in the brain stem from neurons that move the eyes and then activate the limbic system as well as traveling up to the occipital lobe
How do dreams show on brain scans?
Powerful electrical signals that show sudden spikes.
What part of the brain synthesizes the dream?
Cerebral cortex as a result the higher brain attaches some meaning to what is happening.
What does the parietal lobe do?
Assists with interpretations of touch and senses
What does the occipital lobe do?
Process and make sense of visual information.
What does the temporal lobe do?
Recognition of objects and visual memory and language.
What does the frontal lobe do?
Chooses between good and bad and shows your personality and intelligence.
What are criticisms of the AST model?
The theory is too reductionist as dreams are highly complex and packed full of meaning. It is wrong to reduce it down to simple neuronal processes.
Dreams occur in non - REM stages of sleep meaning although brain activity is reduced in other stages dreams still occur.
