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| Autor/in | Posner, Michael I. |
|---|---|
| Institution | Washington Univ., St. Louis, MO. |
| Titel | Structures and Functions of Selective Attention. |
| Quelle | (1987), (59 Seiten)
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| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Monographie |
| Schlagwörter | Attention; Attention Deficit Disorders; Brain; Medical Research; Neurological Impairments; Neurological Organization; Neurology; Neuropsychology; Receptive Language; Schizophrenia; Visual Perception |
| Abstract | While neuropsychology relates the neural structures damaged in traumatic brain injury with their cognitive functions in daily life, this report reviews evidence that elementary operations of cognition as defined by cognitive studies are the level at which the brain localizes its computations. Orienting of visual attention is used as a model task. The component facilitations and inhibitions in visual orienting are related to neural systems through the study of focal neurological lesions. Visual orienting is a part of a more general selective attention system that also involves orienting to language. Ability to be aware of and to act upon target events depends upon the connections of posterior orienting systems to anterior systems involved in target detection. These pathways have been examined in studies of focal changes in cerebral blood flow during performance of language tasks. Although there is not available a general analysis of the mental operations performed by these anterior systems, there is some evidence relating the dorsolateral prefrontal and areas of the medial surface to aspects of focal selection. To study the generality of the attentional system developed in this report, the putative deficits of attention in disorders such as schizophrenia are examined. (Author/MDE) |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
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