ArticleScientific reports2018
New thin-film surface electrode array enables brain mapping with high spatial acuity in rodents.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Overcoming failure: improving acceptance and success of implanted neural interfaces.Bioelectronic medicine · 2025Review
- Comparison of Subdural and Intracortical Recordings of Somatosensory Evoked Responses.Sensors (Basel, Switzerland) · 2024Article
- Array-wide uniform PEDOT:PSS electroplating from potentiostatic deposition.Biosensors & bioelectronics · 2024Article
- Highly Customizable 3D Microelectrode Arrays for In Vitro and In Vivo Neuronal Tissue Recordings.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- A novel micro-ECoG recording method for recording multisensory neural activity from the parietal to temporal cortices in mice.Molecular brain · 2023Article
- Polymer nanofiber network reinforced gold electrode array for neural activity recording.Biomedical engineering letters · 2023Article
- Spatially controlled, bipolar, cortical stimulation with high-capacitance, mechanically flexible subdural surface microelectrode arrays.Science advances · 2022Article
- The size of via holes influence the amplitude and selectivity of neural signals in Micro-ECoG arrays.BMC biomedical engineering · 2022Article
- Biocompatibility Testing of Liquid Metal as an Interconnection Material for Flexible Implant Technology.Nanomaterials (Basel, Switzerland) · 2021Article
- Carbon-Nanotube-Coated Surface Electrodes for Cortical Recordings In Vivo.Nanomaterials (Basel, Switzerland) · 2021Article
- Advances in Carbon-Based Microfiber Electrodes for Neural Interfacing.Frontiers in neuroscience · 2021Review
- Wireless, miniaturized, semi-implantable electrocorticography microsystem validated in vivo.Scientific reports · 2020Article
- GCaMP as an indirect measure of electrical activity in rat trigeminal ganglion neurons.Cell calcium · 2020Article
- Analysis and Model of Cortical Slow Waves Acquired with Optical Techniques.Methods and protocols · 2020Article
- Stimulus Driven Single Unit Activity From Micro-Electrocorticography.Frontiers in neuroscience · 2020Article
- Intracortical Microstimulation Modulates Cortical Induced Responses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018Article
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
In neuroscience, single-shank penetrating multi-electrode arrays are standard for sequentially sampling several cortical sites with high spatial and temporal resolution, with the disadvantage of neuronal damage. Non-penetrating surface grids used in electrocorticography (ECoG) permit simultaneous recording of multiple cortical sites, with limited spatial resolution, due to distance to neuronal tissue, large contact size and high impedances. Here we compared new thin-film parylene C ECoG grids, covering the guinea pig primary auditory cortex, with simultaneous recordings from penetrating electrode array (PEAs), inserted through openings in the grid material. ECoG grid local field potentials (LFP) showed higher response thresholds and amplitudes compared to PEAs. They enabled, however, fast and reliable tonotopic mapping of the auditory cortex (place-frequency slope: 0.7 mm/octave), with tuning widths similar to PEAs. The ECoG signal correlated best with supragranular layers, exponentially decreasing with cortical depth. The grids also enabled recording of multi-unit activity (MUA), yielding several advantages over LFP recordings, including sharper frequency tunings. ECoG first spike latency showed highest similarity to superficial PEA contacts and MUA traces maximally correlated with PEA recordings from the granular layer. These results confirm high quality of the ECoG grid recordings and the possibility to collect LFP and MUA simultaneously.
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