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Evidence of cingulate motor representation in humans
B Diehl1, D S Dinner, A Mohamed
1Department of Neurology, Cleveland Clinic Foundation, OH 44195, USA. diehlb@ccf.org
Neurology
|September 12, 2000
Summary
Electrical stimulation of the cingulate gyrus in a patient with a brain tumor revealed motor responses. This finding supports the cingulate gyrus as a human motor area.
Area of Science:
- Neuroscience
- Neurosurgery
- Epileptology
Background:
- A 44-year-old male patient presented with a right frontal lobe tumor and drug-resistant epilepsy.
- Pre-surgical evaluation included subdural grid placement for seizure localization.
Observation:
- Electrode positions were mapped onto a 3D reconstructed brain image.
- Electrical stimulation was applied to electrodes situated over the right cingulate gyrus.
Findings:
- Stimulation elicited tonic posturing of the left upper extremity and tonic extension of the left lower extremity.
- This response indicates a motor function associated with the stimulated cingulate gyrus region.
Implications:
- Provides further evidence for the existence of a motor area within the human cingulate gyrus.
- May inform surgical planning for patients with tumors or epilepsy near this region.