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

<p><strong>Speech-ABRs in Cochlear Implant Recipients: Feasibility Study</strong></p> <p>Ghada BinKhamis, Emanuele Perugia, Martin O&rsquo;Driscoll, Karolina Kluk</p> <p><strong>Please site the&nbsp;paper when using this dataset</strong>&nbsp;(DOI:&nbsp;10.1080/14992027.2019.1619100)</p> <p>&nbsp;</p> <p><strong>Participant Recordings (BinKhamis et al Speech_ABR in CI raw data.zip)</strong></p> <ul> <li><strong>Description of raw EEG (speech-ABR) data main folder, subfolders, and raw EEG files</strong> <ul> <li><strong>Folder Information</strong> <ul> <li><strong>Main folder:</strong> Contains 12 subfolders with the raw data from 12 participants</li> <li><strong>Subfolders:</strong> Each subfolder contains raw EEG recordings from one participant, subfolders names are:</li> <li>CI1, CI2, CI3, CI4, CI5, CI6, CI7, CI8, CI9, CI10, CI11, CI12</li> </ul> </li> <li><strong>Each participant subfolder contains four &lsquo;.mat&rsquo; files:</strong> <ul> <li>Each &lsquo;.mat&rsquo; file starts with the participant ID <ul> <li>CI1, CI2, CI3, CI4, CI5, CI6, CI7, CI8, CI9, CI10, CI11, CI12</li> </ul> </li> <li>Followed by the stimulus: 40 da</li> <li>Followed by the stimulus polarity <ul> <li>Pos for positive/standard</li> <li>Neg for negative (reversed polarity stimulus)</li> </ul> </li> <li>Followed by the ipsilateral/implanted ear <ul> <li>R for right ear</li> <li>L for left ear</li> </ul> </li> <li>Finally the recording number for that polarity <ul> <li>1 is the first recording</li> <li>2 is the second recording</li> </ul> </li> </ul> </li> <li><strong>Example &lsquo;.mat&rsquo; file name:</strong> <ul> <li><em>CI1 40 da Neg R1.mat:</em> Participant number 1, reversed polarity stimulus, implanted ear &ndash; right ear, recording number one</li> <li><em>CI9 40 da Pos L2.mat:</em> Participant number 9, standard/positive polarity stimulus, implanted ear &ndash; left ear, recording number two</li> </ul> </li> <li><strong>Description of &lsquo;.mat&rsquo; files that can be accessed and processed using MATLAB (MathWorks): </strong>Each &lsquo;.mat&rsquo; file is a structure that contains the following fields: <ul> <li>The first nine fields are informational, for example: <ul> <li>xunits: &lsquo;s&rsquo; indicates that the recording time window is in seconds, conversion to milliseconds would be required to plot the data in milliseconds</li> <li>start: &lsquo;0&rsquo; indicates that both stimulus and recording start at 0 seconds</li> <li>points: <strong>13750</strong> is the number of sample points</li> <li>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)</li> <li>frames: 2500 is the number of epochs (repetitions)</li> </ul> </li> <li>The last filed <strong>&lsquo;values&rsquo;</strong> is what contains the raw EEG data (13750x2x2500) <ul> <li><strong>13750 </strong>is the number of samples</li> <li><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))</li> <li><strong>2500 </strong>is the number of epochs</li> </ul> </li> </ul> </li> </ul> </li> </ul> <p><strong>Date of data collection:&nbsp;</strong>September 2017</p> <p>&nbsp;</p> <p><strong>Artificial-head artefact Recordings (BinKhamis et al Speech_ABR in CI artefact data.zip)</strong></p> <ul> <li><strong>This folder contains six artificial-head artefact recordings</strong> <ul> <li><strong>CI07_Artefact_40da_neg.mat</strong> <ul> <li>Artefact based on closest approximation to CI07&#39;s MAP</li> <li>Recorded in response to a&nbsp;reversed&nbsp;polarity (neg) 40 ms [da]</li> </ul> </li> <li><strong>CI07_Artefact_40da_pos.mat</strong> <ul> <li>Artefact based on closest approximation to CI07&#39;s MAP</li> <li>Recorded in response to a&nbsp;standard&nbsp;polarity (pos) 40 ms [da]</li> </ul> </li> <li><strong>CI08_Artefact_40da_neg.mat</strong> <ul> <li>Artefact based on closest approximation to CI08&#39;s MAP</li> <li>Recorded in response to a&nbsp;reversed&nbsp;polarity (neg) 40 ms [da]</li> </ul> </li> <li><strong>CI08_Artefact_40da_pos.mat</strong> <ul> <li>Artefact based on closest approximation to CI08&#39;s MAP</li> <li>Recorded in response to a&nbsp;standard&nbsp;polarity (pos) 40 ms [da]</li> </ul> </li> <li><strong>CI09_Artefact_40da_neg.mat</strong> <ul> <li>Artefact based on closest approximation to CI09&#39;s MAP</li> <li>Recorded in response to a&nbsp;reversed&nbsp;polarity (neg) 40 ms [da]</li> </ul> </li> <li><strong>CI09_Artefact_40da_pos.mat</strong> <ul> <li>Artefact based on closest approximation to CI09&#39;s MAP</li> <li>Recorded in response to a&nbsp;standard&nbsp;polarity (pos) 40 ms [da]<br> &nbsp;</li> </ul> </li> </ul> </li> <li><strong>Artefact recordings are in &#39;.mat&#39; format (MATLAB, MathWorks)</strong> <ul> <li>Each &#39;.mat&#39; file is a 10988x2500 matrix <ul> <li><strong>10988</strong>&nbsp;is the number of sample points</li> <li><strong>2500</strong> is the number of epochs&nbsp;(repetitions)</li> </ul> </li> </ul> </li> </ul> <p><strong>Artefacts recorded in: </strong>June&nbsp;2018</p>