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في ١٧/٠٥/٢٠١٣، الساعة ٢:٤١ ص، كتب Jim Bromer <[email protected]>: > > http://www.hedweb.com/bgcharlton/damasioreview.html > Somatic marker mechanism > > Perhaps the most fertile of Damasio’s ideas, and one which has had a major > influence upon my own work, is the idea of a ‘somatic marker’ mechanism which > forms the basis of human consciousness. The somatic marker mechanism is the > way in which cognitive representations of the external world interact with > cognitive representations of the internal world - where perceptions interact > with emotions. > Many animals display awareness of external sensory stimuli (eg. monkeys may > be aware of specific aspects of the visual environment they see, as > demonstrated in innumerable experiments). But what is unusual about humans is > that we are also aware of our bodies, our ‘selves’, and this inner-directed > attention forms the root of consciousness. Damasio argues that consciousness > is based upon an awareness of the ‘somatic’ milieu, and that awareness of > inner states evolved because this enables us to use somatic states (ie. > emotions) to ‘mark’, and thereby ‘evaluate’, external perceptual information. > And this interaction of cognitive representations occurs in working memory > (probably located in the dorso-lateral prefrontal cortex). > > For example, when registering the identity of an aggressive man, the body > state of fear in response is also registered. In order to use this in > planning future action, the brain needs to create a cognitive representation > that contains both the external perceptual information (identity of the man) > and the internal emotional information (fear in response to that particular > man) - and this is achieved in working memory by the simple device of having > evolved the ability to project body state representations into working memory > where we can be aware of them. > AGI | Archives | Modify Your Subscription ------------------------------------------- AGI Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/21088071-f452e424 Modify Your Subscription: https://www.listbox.com/member/?member_id=21088071&id_secret=21088071-58d57657 Powered by Listbox: http://www.listbox.com
