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Cerebral blood flow is reduced by neuronal inhibition induced by transcranial magnetic stimulation – A none-invasive functional optical imaging study on adults

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Abstract

We study the effect of inhibitory neuronal processes on cerebral blood oxygenation in humans in a paradigm of transcallosal inhibition elicited by transcranial magnetic stimulation. Through interhemispheric projections the contralateral motor cortex is inhibited in this paradigm. With a 22 channel NIRS cw-system we observe a decrease in oxy- and an increase in deoxyhemoglobin in the motor cortex.

© 2004 Optical Society of America

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