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Psychology Describe and evaluate one neurobiological theory of dreaming? Neurobiological theory of dreaming focuses on the brain and the nervous system. The activation synthesis theory which is one of the theories put forward by Hobson and Mcarley (1998) said sleep is controlled by mechanism in the brainstem. When activated this inhibits activity in the skeletal muscles and increases activity in the forebrain. This theory seems dreaming as an automatic part of the sleep process that may have no significance beyond the need to organize the material into coherent forms. Hobson points out that injection of a drug that increases the action of acetylcholine both increases REM sleep and dreaming. There is a research evidence to support the activation synthesis theory. Research was taken on cats where there is apparently random firing of cells in cat's brains during REM sleep. This then therefore produces activation in parts of the brain that are...

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