Medical Could an Unshielded EEG Cable Corrupt Signals?

Thread starter JCD
Start date Jun 7, 2006
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Cable Wiring

AI Thread Summary

The discussion centers around concerns regarding the use of a high-density electrocap for EEG signal recording, specifically the lack of shielding on the cable leading to the electrodes. It raises the question of whether this unshielded cable could corrupt the EEG signals. One response suggests that the unit may utilize a differential measurement technique that can reduce noise interference, indicating that even unshielded cables can perform adequately if properly grounded. The conversation highlights the importance of grounding in minimizing signal corruption in EEG recordings.

Jun 7, 2006

JCD

Hi I have just received a high density electrocap for recording eeg -signals and discovered that the cable that leads to the electrodes is not shielded.
Does this probably corrupt the signal?

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Jun 8, 2006

somasimple

Gold Member

Hi,

It is possible that the unit uses a differential measure that lowers the noise.
And I saw many pretty cables that were well grounded but look like they weren't.

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