Abstract
With practice, we become increasingly efficient at visual object comparisons. This may be due to the formation of a memory template that not only binds individual features together to create an object, but also links the object with an associated response. In a longitudinal fMRI study of object matching, evidence for this link between perception and action was observed as a shift of activation from visual-attentive processing areas along the posterior intraparietal sulcus to hand-sensory and motor-related areas.
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Change history
09 October 2005
Replaced supplementary methods.
Notes
In the version of this article initially published online, the supplementary materials were missing an equation. The error has been corrected for the HTML version of the article.
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Acknowledgements
This work was supported by a grant from the Gertrud Reemtsma Stiftung to M.M. and by Deutsche Forschungsgemeinschaft grant Po 548/3–1 to S.P.
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Supplementary information
Supplementary Fig. 1
Event-related fMRI-signal time courses for trials with left hand and right hand responses averaged across tasks. (PDF 466 kb)
Supplementary Fig. 2
Event-related fMRI signal timecourses for matching of category identity (a) and physical identity (b) in the horizontal segment of right intraparietal sulcus. (PDF 285 kb)
Supplementary Fig. 3
Correlation between an late / early learning ratio and late signal increase in postcentral gyrus. (PDF 132 kb)
Supplementary Table 1
List of functional activations. (PDF 41 kb)
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Pollmann, S., Maertens, M. Shift of activity from attention to motor-related brain areas during visual learning. Nat Neurosci 8, 1494–1496 (2005). https://doi.org/10.1038/nn1552
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DOI: https://doi.org/10.1038/nn1552
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