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Functional anatomy of the mental representation of upper extremity movements in healthy subjects.
1. Differences in the distribution of relative regional cerebral blood flow during motor imagery and execution of a joy-stick movement were investigated in six healthy volunteers with the use ofExpand
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Relation between cerebral activity and force in the motor areas of the human brain.
1. Positron emission tomography (PET) studies were performed in six normal right-handed male volunteers (age 30 +/- 3) to investigate the relationship between cerebral activation as measured byExpand
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Anatomy of motor learning. I. Frontal cortex and attention to action.
We used positron emission tomography to study new learning and automatic performance in normal volunteers. Subjects learned sequences of eight finger movements by trial and error. In a previousExpand
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Comparison of regional cerebral blood flow with transcranial magnetic stimulation at different forces.
This study's objective was to investigate regional cerebral blood flow (rCBF) within the primary motor cortex (M1) and to compare it with thresholds of transcranial magnetic stimulation (TMS) andExpand
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Transient phase‐locking and dynamic correlations: Are they the same thing?
This work represents an attempt to bring together two important themes in neuronal dynamics. The first is the characterization of dynamic correlations in multiunit recordings of spike activity usingExpand
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Dynamic scanning of 15O‐butanol with positron emission tomography can identify regional cerebral activations
To determine task‐specific activations of the human brain in individual subjects, we applied pixel‐by‐pixel t‐map statistics to the regional cerebral perfusion data obtained sequentially by dynamicExpand
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Motor imagery—Anatomical representation and electrophysiological characteristics
Experience and results of neuropsychological studies have shown that motor imagery can improve motor performance and enhance motor learning. In recent years several electro-physiological andExpand
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Averaged and single‐trial analysis of cortical activation sequences in movement preparation, initiation, and inhibition
We compare estimates of three‐dimensional brain activity extracted from averaged and from selected single‐trial magnetoencephalographic signals, in order to study activation sequences related toExpand
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Recovery from subcortical stroke--PET activation patterns in patients compared with healthy subjects.
The results of experiments with noninvasive monitoring techniques give us ideas about strategies used by the brain during recovery of function. They have their limitations, however, in that they doExpand
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[Organization and reorganization of the human cortex].
The potential mechanisms underlying recovery and reorganisation of the motor cortex are described on the basis of functional imaging studies. These were performed in normal subjects and patients overExpand
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