<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Dear Group Members,<div><br></div><div>I am struggling a bit with an ERP analysis in Fieldtrip - calculating distractor positivity (Pd), I subtracted ipsilateral from contralateral effects. I get an effect, but exactly the opposite as expected. I looked at my code multiple times and did not find any mistakes. </div><div><br></div><div>However, when looking at channel positions in data.elec.chanpos, it appears that the coordinates for Biosemi 128 are „flipped“ between X and Y, so instead of XYZ it is YXZ. Is this common or could this be the reason for my results?</div><div><br></div><div>Kind regards,</div><div>Bence</div><div><br><div>
<meta charset="UTF-8"><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div>-- <br>Bence Szaszkó, BSc MA MSc</div><div>University Assistant (prae doc)</div><div><br>Vienna Doctoral School CoBeNe </div><div>PhD Representative<br><br>University of Vienna<br>Faculty of Psychology<br>Department of Cognition, Emotion, and Methods in Psychology<br><br>Liebiggasse 5<br>A-1010 Wien/Vienna<br>Austria<br><br>e-mail: bence.szaszko@univie.ac.at</div></div>
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