John Hermiz

TL;DR: The first evoked (stimulus‐locked) cognitive activity with changes in amplitude across pial surface distances as small as 400 µm is reported, potentially enabling basic neurophysiology studies at the scale of neural micro‐circuitry.

TL;DR: This work is the first quantitative demonstration of human sub‐millimeter pitch cortical surface recording yielding higher‐fidelity state estimation relative to devices at the millimeter‐scale, motivating the development and testing of ECoG for basic and clinical neurophysiology as well as towards the realization of high‐performance neural prostheses.

TL;DR: The analysis indicates the presence of spatially structured activity down to the sub-millimeter spatial scale in ECoG despite the effects of volume conduction, justifying the use of dense micro-ECoG grids.

TL;DR: This paper used ultra-high-density microelectrode arrays and a rare opportunity to perform intracranial recordings across multiple cortical areas in human participants to discover three distinct classes of cortical activity that are not locked to ongoing natural brain rhythmic activity.

TL;DR: It is demonstrated through both simulation and experiment that the memory capacity effect can be implemented in a parallel memristor circuit, where decay and interference are achieved by the inherent ion diffusion in the device and the competition for current supply in the circuit, respectively.