Fig. 1: Gamma entrainment in an example LFP recording. | Nature Communications

Fig. 1: Gamma entrainment in an example LFP recording.

From: Gamma entrainment induced by deep brain stimulation as a biomarker for motor improvement with neuromodulation

Fig. 1

300 ms filtered 5 Hz around FTG peak (76 Hz in purple) and around the entrainment peak (63 Hz in pink) during DBS-off, pre-entrainment period (DBS amplitude: 1.5 mA), and during highest DBS amplitude where entrainment was observed (2.5 mA). The recovery of the actual DBS pulses was not possible due to hardware constrains. DBS was applied with a frequency of 125 Hz and pulse width of 60 µs, therefore estimated DBS pulses are plotted every 8 ms. During 1:2 entrainment it is visible that a peak of activity appears every two DBS pulses. Waveforms of evoked responses could not be recorded due to the hardware constrains. The respective spectrogram for this patient is presented in Supplementary Fig. 1A, STN #5.

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