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Activation-Synthesis Theory Evaluation

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Activation-Synthesis Theory Evaluation
Describe and evaluate one neurobiological and one psychological theory of the function of dreaming

The first neurobiological theory I will look at is the activation-synthesis theory. These theory sees dreams as activation in the brain in the areas to do with perception, action and emotion (which occurs during REM). They are essentially random as there is an external blockade (at the top of our spine resulting in paralysis so we cannot act out our dreams) and an internal blockade as only areas of our brain to do with vision and hearing are activated (not to do with taste and smell). This is why dreams can be interpreted as external stimuli and when we wake up it is the brains ‘quest for meaning’ that’s causes us to believe dreams have a

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    (page 188 Moorcroft). Moorcroft posits that, The process of synthesis during dreaming is no different from what occurs when you are awake. All us constantly synthesize the currently available sensory and motor information with our present affective state and then draw upon our memory banks of similar experiences and meanings to order to try to make it coherent (pg 189). On the other hand , according to the original version of this theory, a dream is catch as catch can synthesis by the forebrain, which is making the best of a bad job in producing even partially coherent dream imagery from the relatively noisy signals sent up to it from the brainstem” (Hobson & McCarley, 1977, p.1347). On the other hand, activation synthesis theory is not the best theory to explain dream. There are several critic of activation such as , being too neurological or too narrowly scientific to describe what dream is really about , there are people who have rems and do not dream and there are people who dream but don’t have rems , random stimulation of the forebrain that results in dreaming cannot explain the meaningfulness and it is based on animal brain research that may not apply to a mental functions in human” (Moorcroft…

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