Monitoring and Control of Action by the Frontal Lobes
نویسندگان
چکیده
منابع مشابه
Monitoring and Control of Action by the Frontal Lobes
Success requires deciding among alternatives, controlling the initiation of movements, and judging the consequences of actions. When alternatives are difficult to distinguish, habitual responses must be overcome, or consequences are uncertain, deliberation is necessary and a supervisory system exerts control over the processes that produce sensory-guided movements. We have investigated these pr...
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receipt of rewarding stimuli, whereas a negative evaluation would include either omission of an expected reward or delivery of an aversive stimulus (Rolls, 1999). Sensitivity to reinforcement allows an organism to act in accordance with regularities in the environment. This Success requires deciding among alternatives, con-sensitivity can be expressed through mechanisms intrin-trolling the init...
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Casual observations of patients with focal frontal lobe lesions often reveal little if any cognitive impairment (Fuster, 1989; Hebb, 1945). At the same time, such patients display an assortment of cognitive deficits upon neuropsychological assessment (Janowsky et al., 1989c; Luria, 1980; Stuss & Benson, 1984). With respect to memory, focal frontal injury does not produce a severe amnesic disord...
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ژورنال
عنوان ژورنال: Neuron
سال: 2002
ISSN: 0896-6273
DOI: 10.1016/s0896-6273(02)00964-9