If a patient was experiencing tongue numbness, which EEG contacts would most likely show an abnormality?

Patients experiencing tongue numbness may have alterations in the areas of the brain associated with sensory processing for that region. The correct EEG contact pair that would most likely show an abnormality in this case is the one that corresponds to the cerebral cortex areas responsible for sensory function related to the tongue.

The specific EEG contacts, such as those labeled as 28-29, typically correspond to the central region of the brain, which is involved in the sensory motor cortex function. Any abnormalities detected on the EEG in these contacts could indicate issues with the processing of sensory information, which could manifest as symptoms like tongue numbness.

Electrode pairs related to the areas responsible for other sensory functions would not typically show abnormalities related to tongue issues, focusing the analysis specifically on the correct areas of the brain associated with tongue sensation. Thus, those particular contacts are indeed the most relevant for identifying potential abnormal activity linked to tongue numbness.