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Figure 2 | Bioelectronic Medicine

Figure 2

From: Time Stability and Coherence Analysis of Multiunit, Single-Unit and Local Field Potential Neuronal Signals in Chronically Implanted Brain Electrodes

Figure 2

Electrophysiology recordings. (A) Waveforms of three single units recorded from a single channel of the 96-channel MEA implanted in the primary motor cortex of the monkey. (B) A net decline in the number of single units was observed over time. Neural spikes were observed as early as 24 d postimplantation and were observed as late as 227 d postimplantation. Similar trends were observed for (C) the mean firing rate and (D) spike SNR over time. Error bars represent S.E.M.

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Bioelectronic Medicine

ISSN: 2332-8886