![\"chain-of-electrodes\"](\"https://raw.githubusercontent.com/cdeotte/Kaggle_Images/main/Feb-2024/montage2.png\")
I was studying some papers on DL-based EEG classification, and it turns out that one would usually like to know something about structure of the device itself. As far as I understand, the device consists of dozens of electrodes that somehow connected/related between each other. Do we know the exact way they are related? For example maybe we know the measure of distance between pairs of electrodes?
\nThe only information I've found so far was this picture that illustrates a chain structure of the electrodes:
But do we have something else?
", "messages": [ { "id": "2668744", "postDate": "02/25/2024 20:49:22", "content": "I was studying some papers on DL-based EEG classification, and it turns out that one would usually like to know something about structure of the device itself. As far as I understand, the device consists of dozens of electrodes that somehow connected/related between each other. Do we know the exact way they are related? For example maybe we know the measure of distance between pairs of electrodes?
\nThe only information I've found so far was this picture that illustrates a chain structure of the electrodes:
But do we have something else?
", "rawMarkdown": "I was studying some papers on DL-based EEG classification, and it turns out that one would usually like to know something about structure of the device itself. As far as I understand, the device consists of dozens of electrodes that somehow connected/related between each other. Do we know the exact way they are related? For example maybe we know the measure of distance between pairs of electrodes? \n\nThe only information I've found so far was this picture that illustrates a chain structure of the electrodes: \n\nBut do we have something else?", "votes": null }, { "id": "2668748", "postDate": "02/25/2024 20:58:26", "content": "The electrodes are placed in 10-20 system. Wikipedia describes their locations here and we can Google search for more info.
Thank you for your comment! I'll try to search for more information on this!
", "rawMarkdown": "Thank you for your comment! I'll try to search for more information on this!", "votes": null }, { "id": "2672336", "postDate": "02/28/2024 04:39:49", "content": "I believe you might be referring to the idea of electrode montages, which are a way of relating the electrodes. This website describes it well: https://www.learningeeg.com/montages-and-technical-components
\nFor our data, we just get the individual values for each electrodes, which I believe indicates it is a referential montage. So for each electrode we get a separate volt reading relative to whatever the reference is (maybe an electrically silent electrode, or just the average voltage). So the electrode readings themselves are not connected, but of course the underlying brain activity is not localized to a single electrode and thus neighboring electrodes will still see similarities.
", "rawMarkdown": "I believe you might be referring to the idea of electrode montages, which are a way of relating the electrodes. This website describes it well: https://www.learningeeg.com/montages-and-technical-components\n\nFor our data, we just get the individual values for each electrodes, which I believe indicates it is a referential montage. So for each electrode we get a separate volt reading relative to whatever the reference is (maybe an electrically silent electrode, or just the average voltage). So the electrode readings themselves are not connected, but of course the underlying brain activity is not localized to a single electrode and thus neighboring electrodes will still see similarities.", "votes": null }, { "id": "2673378", "postDate": "02/28/2024 16:36:45", "content": "I also have some questions regarding this, I didn't find an answer, but my main concern is how the data is treated when receiving data from the device, whether any filtering is done online or all filters are done offline
", "rawMarkdown": "I also have some questions regarding this, I didn't find an answer, but my main concern is how the data is treated when receiving data from the device, whether any filtering is done online or all filters are done offline", "votes": null }, { "id": "2677004", "postDate": "03/01/2024 20:52:06", "content": "Thank you! Well yes, I'm basically interested in the brain connectivity and it seems to me that, to some extent, the electrodes connectivity can be a sort of an approximation of that.
", "rawMarkdown": "Thank you! Well yes, I'm basically interested in the brain connectivity and it seems to me that, to some extent, the electrodes connectivity can be a sort of an approximation of that.", "votes": null } ], "comments": [ { "id": 2668748, "author_name": "cdeotte", "author_url": "", "post_date": "02/25/2024 20:58:26", "content": "The electrodes are placed in 10-20 system. Wikipedia describes their locations here and we can Google search for more info.
Thank you for your comment! I'll try to search for more information on this!
", "votes": null, "replies": [] } ] }, { "id": 2672336, "author_name": "kermitsquished", "author_url": "", "post_date": "02/28/2024 04:39:49", "content": "I believe you might be referring to the idea of electrode montages, which are a way of relating the electrodes. This website describes it well: https://www.learningeeg.com/montages-and-technical-components
\nFor our data, we just get the individual values for each electrodes, which I believe indicates it is a referential montage. So for each electrode we get a separate volt reading relative to whatever the reference is (maybe an electrically silent electrode, or just the average voltage). So the electrode readings themselves are not connected, but of course the underlying brain activity is not localized to a single electrode and thus neighboring electrodes will still see similarities.
", "votes": null, "replies": [ { "id": 2677004, "author_name": "snopoff", "author_url": "", "post_date": "03/01/2024 20:52:06", "content": "Thank you! Well yes, I'm basically interested in the brain connectivity and it seems to me that, to some extent, the electrodes connectivity can be a sort of an approximation of that.
", "votes": null, "replies": [] } ] }, { "id": 2673378, "author_name": "rafaelzimmermann1", "author_url": "", "post_date": "02/28/2024 16:36:45", "content": "I also have some questions regarding this, I didn't find an answer, but my main concern is how the data is treated when receiving data from the device, whether any filtering is done online or all filters are done offline
", "votes": null, "replies": [] } ], "raw_markdown_by_id": { "2668744": "I was studying some papers on DL-based EEG classification, and it turns out that one would usually like to know something about structure of the device itself. As far as I understand, the device consists of dozens of electrodes that somehow connected/related between each other. Do we know the exact way they are related? For example maybe we know the measure of distance between pairs of electrodes? \n\nThe only information I've found so far was this picture that illustrates a chain structure of the electrodes: \n\nBut do we have something else?", "2668748": "The electrodes are placed in `10-20 system`. Wikipedia describes their locations [here][1] and we can Google search for more info.\n\n[1]: https://en.wikipedia.org/wiki/10%E2%80%9320_system_(EEG)", "2668753": "Thank you for your comment! I'll try to search for more information on this!", "2672336": "I believe you might be referring to the idea of electrode montages, which are a way of relating the electrodes. This website describes it well: https://www.learningeeg.com/montages-and-technical-components\n\nFor our data, we just get the individual values for each electrodes, which I believe indicates it is a referential montage. So for each electrode we get a separate volt reading relative to whatever the reference is (maybe an electrically silent electrode, or just the average voltage). So the electrode readings themselves are not connected, but of course the underlying brain activity is not localized to a single electrode and thus neighboring electrodes will still see similarities.", "2673378": "I also have some questions regarding this, I didn't find an answer, but my main concern is how the data is treated when receiving data from the device, whether any filtering is done online or all filters are done offline", "2677004": "Thank you! Well yes, I'm basically interested in the brain connectivity and it seems to me that, to some extent, the electrodes connectivity can be a sort of an approximation of that." }, "source": "meta" }