Alterations in Spontaneous Brain Oscillations during Stroke Recovery
Figure 5
Spectrum and source localization of abnormal low-frequency magnetic activity (ALFMA).
A) Amplitude spectra (eyes closed) of spontaneous 0–5-Hz brain oscillations in one patient and one control subject. Two channels from the amplitude spectra of spontaneous 0–5-Hz brain oscillations in one patient at T0, T1, and T2 and in one control subject. AH, channel from the perilesional area in the affected hemisphere. UH, channel from the corresponding region in the unaffected hemisphere. T0, 1 week; T1, 1month; T2, 3 months after stroke. B) Source localization of ALFMA in one patient above Source localization of ALFMA (arbitrary scale) projected on the surface of the standard brain volume (same patient as in A). below Source localizations of ALFMA projected on the MRI of the patient. Lesion localization is shown on the left.