A Unified Statistical Approach for Determining Significant Signals in Location and Scale Space Images of Cerebral Activation
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چکیده
We present a unified P -value for assessing the significance of peaks in statistical fields searched over regions of any shape or size. We extend this to 4-D scale space searches over smoothing filter width as well as location. The results are usable in a wide range of applications, including PET and fMRI, but are discussed with particular reference to PET images which represent changes in cerebral blood flow (CBF) elicited by a specific cognitive or sensorimotor task.
منابع مشابه
Statistical Approach for DeterminingSigni cant Signals in Location and Scale SpaceImages of Cerebral
We present a uniied P-value for assessing the signiicance of peaks in statistical elds searched over regions of any shape or size. We extend this to 4-D scale space searches over smoothing lter width as well as location. The results are usable in a wide range of applications, including PET and fMRI, but are discussed with particular reference to PET images which represent changes in cerebral bl...
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تاریخ انتشار 1995