Magnetic resonance imaging functional activation of left frontal cortex during covert word production.

@article{Rueckert1994MagneticRI,
  title={Magnetic resonance imaging functional activation of left frontal cortex during covert word production.},
  author={L Rueckert and Ildebrando Marco Appollonio and Jordan Grafman and Peter Jezzard and Ray Johnson and Denis Le Bihan and Robert Turner},
  journal={Journal of neuroimaging : official journal of the American Society of Neuroimaging},
  year={1994},
  volume={4 2},
  pages={67-70}
}
Six normal volunteers underwent 4-T functional magnetic resonance imaging while performing a covert letter fluency task. An echo planar imaging sequence was utilized to detect activation based on deoxyhemoglobin contrast. All 6 subjects showed consistent activation in the frontal operculum and premotor and primary motor cortices. Activation was also detected in the supramarginal gyrus and the posterior part of the superior temporal gyrus. These results show that magnetic resonance functional… CONTINUE READING

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