Dream Theories

Neural Activation Theory

REM sleep triggers neural activity that evokes random visual memories, which our sleeping brain weaves into stories

Problems with Information-processing Theory

But why do we dream about things we have not experienced?

Cognitive Development Theory

Dream content reflects dreamers' cognitive development -their knowledge and understanding.

Problems with Neural Activation Theory

The individual's brain is weaving the stories, which still tells us something about the dreamer

Problems with Physiological function Theory

This does not explain why we experience meaningful dreams.

Problems with Cognitive Development Theory

does not address the neuroscience of dreams

Freud's wish-fulfillment Theory

dreams allow us to express otherwise unacceptable feelings.

Information-processing Theory

dreams help us sort out the day's events and consolidate our memories.

Problems with Freud's wish-fulfillment Theory

lacks any scientific support; dreams may be interpreted in many different ways.

Physiological function Theory

regular brain stimulation from REM sleep may help develop and preserve neural pathways.