Abstract：
:What are the implications of anatomical localization of component mental operations for cognitive models? In this paper we use the anatomical localizations of visual and auditory word processing that were previously reported from PET studies (Petersen, Fox, Posner, Mintun & Raichle, 1988. We hypothesize that two operations performed simultaneously by the same or heavily interconnected anatomical areas will produce specific interference. One task is repeating back (shadowing) auditory words as quickly as possible. This task is shown to interfere with shifts of visual attention in the direction of peripheral cues. Both tasks are known to require common attentional operations localized to the medial frontal lobe. The shadowing task does not interfere with operations involving priming of a visual word form. This kind of priming involves areas of the ventral occipital lobe not used during shadowing. Finally, both shadowing and semantic priming involve anterior semantic and intentional areas. Accordingly, they can interfere. The conditions under which they produce interference suggest that the interference involves operations performed by the anterior attention system. These experiments support the idea that words automatically activate visual word forms, but involve shared attentional systems for higher level processes.
journal_name
J Cogn Neuroscijournal_title
Journal of cognitive neuroscienceauthors
Posner MI,Sandson J,Dhawan M,Shulman GLdoi
10.1162/jocn.1989.1.1.50subject
Has Abstractpub_date
1989-01-01 00:00:00pages
50-60issue
1eissn
0898-929Xissn
1530-8898journal_volume
1pub_type
杂志文章abstract：:Using a speeded lexical decision task, event-related potentials (ERPs), and minimum norm current source estimates, we investigated early spatiotemporal aspects of cortical activation elicited by words and pseudo-words that varied in their orthographic typicality, that is, in the frequency of their component letter pai...
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journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章,评审
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pub_type： 杂志文章
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journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
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journal_title：Journal of cognitive neuroscience
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journal_title：Journal of cognitive neuroscience
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journal_title：Journal of cognitive neuroscience
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abstract：:Previous work has suggested that familiarity/novelty of learned materials affects the circuitry involved in memory, primarily in the size of activations rather than the pattern of activation. Although this work has examined both recall and recognition, it has been limited to verbal material. In this study, we set out ...
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journal_title：Journal of cognitive neuroscience
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abstract：:A neural correlate for phrase boundary perception in music has recently been identified in musicians. It is called music closure positive shift ("music CPS") and has an equivalent in the perception of speech ("language CPS"). The aim of the present study was to investigate the influence of musical expertise and differ...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
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更新日期：2006-03-01 00:00:00
