EEG and ECoG simultaneous recording

Latest version is available!!

The latest dataset is avaiable from 2018/06/07. (20120123S11_EEGECoG_Su_Oosugi-Naoya+Nagasaka-Yasuo+Hasegawa+Naomi_ECoG256-EEG17_mat and 20120904S11_EEGECoG_Chibi_Oosugi-Naoya+Nagasaka-Yasuo+Hasegawa+Naomi_ECoG128-EEG16_mat).

Major changes

  • There is an increase in number of electrodes from 128 (left hemisphere) to 256 (left and right hemisphere).
  • Published !!(Oosugi, Naoya, et al. "A new method for quantifying the performance of EEG blind source separation algorithms by referencing a simultaneously recorded ECoG signal." Neural Networks 93 (2017): 1-6.)
  • [Task Description (latest)]

    We have recorded ECoG and EEG signals simultaneously from the same monkey. We implanted 128 or 256 channels ECoG array that covered entire lateral cortical surface of left or right hemisphere with every 5 millimeter spacing. EEG signal was recorded from 16 or 17 channels. Location of the EEG electrodes was determined by 10-20 systems without Cz and Pz, because the location of Cz and Pz interfered with a connector of ECoG.
    ECoG and EEG data were sampled at 1,000Hz.

    [Task Description (old)]

    We have recorded ECoG and EEG signals simultaneously from the same monkey. We implanted 128 channels ECoG array that covered entire lateral cortical surface of left hemisphere with every 5 millimeter spacing. EEG signal was recorded from 19 channels. Location of the EEG electrodes was determined by 10-20 systems without Cz, because the location of Cz interfered with a connector of ECoG.
    ECoG and EEG data were sampled at 1,000Hz and 4,096Hz respectively.


    The monkey was seated in a primate chair with eyes closed and both arms tied. The monkey was injected anesthetic drug during the recording.
    S1: Resting condition, S2: Anesthetic condition, S3: Recovery condition

    <Notice>
    EEG data in S1, S2 and S3 were downsampled from 4096 Hz to 1000Hz.
    We uploaded new datasets ( S11: Resting condition, S12: Anesthetic condition, S13: Recovery condition). These EEG data were not downsampled. (7/12/2011)

    We modified file name. (8/17/2011)

    <Click for Download Data> 


    Additional Information (Preliminary results) on TychoWiki