2026-06-12 00:00 Germany Papers Foundations & Methods Translated from EN

Hybrid micro-ECoG for multi-scale neural recording

Summary Published in Cell Reports Methods on June 12, 2026, the study presents high-density micro-electrocorticography arrays that integrate silicone elastomers (optical transparency, repeated penetration with intracortical arrays) and polyimide films (fine photolithographic feature definition) for multi-scale studies of brain activity. The combination facilitates high-throughput functional mapping to identify targets and insertion of intracortical arrays for dense local sampling. The authors demonstrated functional mapping in rats, cats and marmosets, guiding multi-area laminar recordings, and demonstrated local and feedforward optogenetic stimulation to investigate cortico-cortical interactions.

Why it matters A hybrid micro-ECoG array combining transparent flexible substrates with fine lithographic features, enabling functional-mapping-guided multi-area laminar recordings, a methodological advance for neural interface devices.

BCIwiki (bciwiki.com) — The study was published in Cell Reports Methods on June 12, 2026. The authors present high-density micro-electrocorticography arrays that facilitate multi-scale studies of brain activity, integrating the desirable features of silicone elastomers and polyimide films. The researchers are affiliated with the Ernst Strüngmann Institute (ESI) for Neuroscience and other institutions in Germany.

Silicone provides optical transparency and permits repeated penetration with intracortical arrays, while polyimide enables fine photolithographic feature definition. This combination facilitates high-throughput functional mapping to identify targets and insertion of intracortical arrays for dense local sampling. The authors demonstrated functional mapping in rats, cats and marmosets, showing how functional maps guide multi-area laminar recordings.

The study also demonstrated local and feedforward optogenetic stimulation to investigate cortico-cortical interactions. The authors conclude that these capabilities establish the hybrid micro-ECoG as a compelling tool for systems neuroscience.

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pubmed.ncbi.nlm.nih.gov 2026-06-12

ECoG High-density Electrodes Germany

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