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Journal home Advance online publication Current issue Archive Press releases Supplements Focuses Guide to authors Online submission Permissions For referees Free online issue Contact the journal Subscribe Advertising work@npg naturereprints About this site For librarians   NPG Resources Nature Nature Reviews Neuroscience Nature Cell Biology Nature Medicine Neuroscience Gateway UCSD-Nature Signaling Gateway NPG Subject areas Biotechnology Cancer Chemistry Clinical Medicine Dentistry Development Drug Discovery Earth Sciences Evolution & Ecology Genetics Immunology Materials Science Medical Research Microbiology Molecular Cell Biology Neuroscience Pharmacology Physics Browse all publications Article Nature Neuroscience  3, 837 - 843 (2000) doi:10.1038/77754 The dynamics of object-selective activation correlate with recognition performance in humans Kalanit Grill-Spector1, 5, Tammar Kushnir2, Talma Hendler3 & Rafael Malach4 1  Departments of Computer Science and Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel 2  Diagnostic Imaging Department, The Chaim Sheba Medical Center, Tel Hashomer 52621, Israel 3  Laboratory for Functional Imaging, Wohl Institute for Advanced Imaging, Tel-Aviv Sourasky Medical Center, Israel 4  Department of Neurobiology, Weizmann Institute of Science , Rehovot 76100, Israel 5  Present address: Dept. of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Correspondence should be addressed to Kalanit Grill-Spector kalanit@psyche.mit.eduTo investigate the relationship between perceptual awareness and brain activity, we measured both recognition performance and fMRI signal from object-related areas in human cortex while images were presented briefly using a masking protocol. Our results suggest that recognition performance is correlated with selective activation in object areas. Selective activation was correlated to object naming when exposure duration was varied from 20 to 500 milliseconds. Subjects' recognition during identical visual stimulation could be enhanced by training, which also increased the fMRI signal. Overall, the correlation between recognition performance and fMRI signal was highest in occipitotemporal object areas (the lateral occipital complex).  Top Abstract Previous Table of contents Full text Download PDF Send to a friend Save this link Open Innovation Challenges Novel Approaches to Protecting Maize from Insect Damage Deadline: Jan 31 2010 Reward: $20,000 USD The Seeker is looking for novel approaches to protecting maize from insect damage. This Challenge re... Optimizing Sub-cellular Localization Tags Deadline: Jan 31 2010 Reward: $20,000 USD The Seeker is looking for methods to optimize sub-cellular localization tags for protein expression.... More Challenges Powered by: nature jobs Research Assistant / Associate University of Glasgow Glasgow, UK Neuroscience Faculty Positions University of Tennessee Health Science Center Memphis, Tennessee, USA More science jobs Post a job for free Figures & Tables Export citation Search buyers guide:   ADVERTISEMENT

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