Extended Data Fig. 5: Clustering analysis demonstrating single-unit recording from a representative tetrode-like electrode array on mesh electronics.
From: Tracking neural activity from the same cells during the entire adult life of mice
a, Scatter plots showing peak-to-peak amplitudes of waveforms from all pairs of electrodes within an array. Identified clusters are plotted in colors. Multiple clusters are clearly evident representing the spikes of single units. b, The same waveform data projected onto the first principal component (PC1) axis of each electrode. The clusters can be distinguished and identified by multiple electrodes on both amplitude and PC1 space. that is, purple cluster: waveform recorded on electrode # 1 can be separated from waveforms on electrode # 2, 3, 4, 5, 6. Blue: electrode # 3 versus # 1, 2, 4, 5, 6; Cyan: electrode # 4 versus # 1, 2, 3, 5, 6; Green: electrode # 4 versus # 5, 6; Orange: electrode # 6 versus # 1, 2, 3, 4, 5. Yellow: electrode # 5 versus # 6.
