The dynamics of object-selective activation correlate with recognition performance in humans

被引：0
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作者：
Kalanit Grill-Spector
Tammar Kushnir
Talma Hendler
Rafael Malach
机构：
[1] Weizmann Institute of Science,Departments of Computer Science and Neurobiology
[2] The Chaim Sheba Medical Center,Diagnostic Imaging Department
[3] Laboratory for Functional Imaging,Department of Neurobiology
[4] Wohl Institute for Advanced Imaging,Dept. of Brain and Cognitive Sciences
[5] Tel-Aviv Sourasky Medical Center,undefined
[6] ,undefined
[7] Weizmann Institute of Science,undefined
[8] Massachusetts Institute of Technology,undefined
来源：
Nature Neuroscience | 2000年 / 3卷
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摘要：
To 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).
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页码：837 / 843
页数：6
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