Raw Data from - Speech-ABRs in Cochlear Implant Recipients: Feasibility Study

<strong>Speech-ABRs in Cochlear Implant Recipients: Feasibility Study</strong> Ghada BinKhamis, Emanuele Perugia, Martin O’Driscoll, Karolina Kluk <strong>Please site the paper when using this dataset</strong> (DOI: 10.1080/14992027.2019.1619100) <strong>Participant Recordings (BinKhamis et al Speech_ABR in CI raw data.zip)</strong> <strong>Description of raw EEG (speech-ABR) data main folder, subfolders, and raw EEG files</strong> <strong>Folder Information</strong> <strong>Main folder:</strong> Contains 12 subfolders with the raw data from 12 participants <strong>Subfolders:</strong> Each subfolder contains raw EEG recordings from one participant, subfolders names are: CI1, CI2, CI3, CI4, CI5, CI6, CI7, CI8, CI9, CI10, CI11, CI12 <strong>Each participant subfolder contains four ‘.mat’ files:</strong> Each ‘.mat’ file starts with the participant ID CI1, CI2, CI3, CI4, CI5, CI6, CI7, CI8, CI9, CI10, CI11, CI12 Followed by the stimulus: 40 da Followed by the stimulus polarity Pos for positive/standard Neg for negative (reversed polarity stimulus) Followed by the ipsilateral/implanted ear R for right ear L for left ear Finally the recording number for that polarity 1 is the first recording 2 is the second recording <strong>Example ‘.mat’ file name:</strong> <em>CI1 40 da Neg R1.mat:</em> Participant number 1, reversed polarity stimulus, implanted ear – right ear, recording number one <em>CI9 40 da Pos L2.mat:</em> Participant number 9, standard/positive polarity stimulus, implanted ear – left ear, recording number two <strong>Description of ‘.mat’ files that can be accessed and processed using MATLAB (MathWorks): </strong>Each ‘.mat’ file is a structure that contains the following fields: The first nine fields are informational, for example: xunits: ‘s’ indicates that the recording time window is in seconds, conversion to milliseconds would be required to plot the data in milliseconds start: ‘0’ indicates that both stimulus and recording start at 0 seconds points: <strong>13750</strong> is the number of sample points chans: 2 is the number of channels (channel 2 is the ipsilateral channel for participants with a Right CI, and channel 1 is the ipsilateral channel for participants with a Left CI) frames: 2500 is the number of epochs (repetitions) The last filed <strong>‘values’</strong> is what contains the raw EEG data (13750x2x2500) <strong>13750 </strong>is the number of samples <strong>2 </strong>is the number of channels (channel one is recorded from the left ear lobe (A1) and channel two is from the right ear lobe (A2)) <strong>2500 </strong>is the number of epochs <strong>Date of data collection: </strong>September 2017 <strong>Artificial-head artefact Recordings (BinKhamis et al Speech_ABR in CI artefact data.zip)</strong> <strong>This folder contains six artificial-head artefact recordings</strong> <strong>CI07_Artefact_40da_neg.mat</strong> Artefact based on closest approximation to CI07's MAP Recorded in response to a reversed polarity (neg) 40 ms [da] <strong>CI07_Artefact_40da_pos.mat</strong> Artefact based on closest approximation to CI07's MAP Recorded in response to a standard polarity (pos) 40 ms [da] <strong>CI08_Artefact_40da_neg.mat</strong> Artefact based on closest approximation to CI08's MAP Recorded in response to a reversed polarity (neg) 40 ms [da] <strong>CI08_Artefact_40da_pos.mat</strong> Artefact based on closest approximation to CI08's MAP Recorded in response to a standard polarity (pos) 40 ms [da] <strong>CI09_Artefact_40da_neg.mat</strong> Artefact based on closest approximation to CI09's MAP Recorded in response to a reversed polarity (neg) 40 ms [da] <strong>CI09_Artefact_40da_pos.mat</strong> Artefact based on closest approximation to CI09's MAP Recorded in response to a standard polarity (pos) 40 ms [da]<br> <strong>Artefact recordings are in '.mat' format (MATLAB, MathWorks)</strong> Each '.mat' file is a 10988x2500 matrix <strong>10988</strong> is the number of sample points <strong>2500</strong> is the number of epochs (repetitions) <strong>Artefacts recorded in: </strong>June 2018