| Autor: |
Schumacher EH; Department of Psychology, University of Michigan, Ann Arbor 48109, USA. eschu@umich.edu, Lauber E, Awh E, Jonides J, Smith EE, Koeppe RA |
| Jazyk: |
angličtina |
| Zdroj: |
NeuroImage [Neuroimage] 1996 Apr; Vol. 3 (2), pp. 79-88. |
| DOI: |
10.1006/nimg.1996.0009 |
| Abstrakt: |
Current models of verbal working memory assume that modality-specific representations are translated into phonological representations before entering the working memory system. We report an experiment that tests this assumption. Positron emission tomography measures were taken while subjects performed a verbal working memory task. Stimuli were presented either visually or aurally, and a visual or auditory search tasks, respectively, was used as a control. Results revealed an almost complete overlap between the active memory areas regardless of input modality. These areas included dorsolateral frontal, Broca's area, SMA, and premotor cortex in the left hemisphere; bilateral superior and posterior parietal cortices and anterior cingulate; and right cerebellum. These results correspond well with previous research and suggest that verbal working memory is modality independent and is mediated by a circuit involving frontal, parietal, and cerebellar mechanisms. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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