Ecog Recording
Ecog Recording - Related Videos
13:32
Recording Human Electrocorticographic (ECoG) Signals for Neuroscientific Research and Real-time Functional Cortical Mapping
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Cited by 134 •
2012
We present a method for collecting electrocorticographic signals for research purposes from humans who are undergoing invasive epilepsy monitoring. We show how to use the BCI2000 software platform for data collection, signal processing and stimulus presentation. Specifically, we demonstrate SIGFRIED, a BCI2000-based tool for real-time functional brain mapping.
08:30
Subdural Soft Electrocorticography (ECoG) Array Implantation and Long-Term Cortical Recording in Minipigs
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Cited by 6 •
2023
Here, we present a method for the long-term performance and safety assessment of soft subdural electrode arrays in a minipig model, describing surgical method and tools, postoperative magnetic resonance imaging, electrophysiology of the auditory cortex, electrochemical properties of the implant, and postmortem immunochemistry.
09:06
Manipulation of Epileptiform Electrocorticograms (ECoGs) and Sleep in Rats and Mice by Acupuncture
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Cited by 7 •
2016
This paper demonstrates the performance of acupuncture, epilepsy models, and the analysis of sleep in rodents. The acupuncture procedure and the identification of acupoints are described. Pilocarpine or pentylenetetrazol (PTZ) is used to induce epilepsy. Electrocorticogram (ECoG), electromyogram (EMG), brain temperature, and locomotor activity recordings are employed for sleep analysis.
14:34
Surgical Protocol for a Large, Resealable Cranial Window Enabling Longitudinal, Multi-Modal Electrophysiology Recordings of Mouse Default Mode Network
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2026
This protocol describes a two-phase surgical method to create a large, resealable, dura-sparing cranial window in mice. This technique enables chronic, multi-modal electrophysiological recordings from distributed, deep-brain networks, such as the Default Mode Network, over several weeks.
03:26
Electroencephalography-Based Recording Technique to Record the Epileptiform Activity
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2025
This video describes the technique for recording the epileptiform activity of rhinal cortex-hippocampus organotypic slices ex vivo using electrophysiology or EEG set-up. This helps to study the dynamics and progression of epileptogenesis and screen potential therapeutic targets to treat epilepsy.
FAQs
Electrodes positioned on or beneath the dura detect voltage fluctuations at the cortical surface. These fluctuations arise from synchronized neuronal activity, allowing the recording to represent coordinated electrical behavior across cortical tissue. Electrode placement therefore determines which cortical regions contribute to the signal and supports region-specific analysis of brain activity.
Its combination of high temporal and spatial resolution allows researchers to examine when neural activity changes and where those changes occur on the cortex. Reduced signal distortion further helps preserve interpretable activity patterns, making the method useful for linking electrical events with cortical organization, sensory processing, and motor processing.
Amplifiers convert the voltage fluctuations detected by the electrodes into analyzable traces. This conversion creates the signal format researchers can inspect to identify patterns of cortical activity and relate them to neural communication or other brain functions. The recording stage therefore connects electrode-detected changes with the analyses used to study brain activity.
The workflow begins with electrodes placed on or beneath the dura, followed by detection of cortical voltage fluctuations. Amplifiers then convert the detected signals into traces that can be analyzed. Researchers interpret those traces in relation to cortical organization, sensory or motor processing, neural communication, or the specific clinical question guiding the recording.
In neuroscience research, ECoG can reveal patterns related to cortical organization, sensory processing, and motor processing. It can also support studies of neural communication by providing electrical activity with precise timing and cortical localization. These outcomes help researchers examine how different regions participate in brain function and inform development of neural interfaces.
Clinicians use ECoG to help localize seizure-generating regions and map functional cortex before surgery. The resulting traces connect electrical activity with cortical location and timing, supporting evaluation of seizure-related regions and functional areas relevant to surgical planning. This application extends the method from basic measurement into clinical assessment of brain function.