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<body class='hmmessage'><div dir='ltr'><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21px; ">Dear eeglab users,</span><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px; ">I'm using newtimef to calculate the ERSP. My epochs are -1500 to 2000 ms long, and I'm using the time from -1500 to 0 as a baseline. </div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px; ">I've been told that a baseline from -500 to -200 ms would be more optimal to avoid edge-artifacts, since my baseline starts at the same point that the beginning of my epoch (-1500ms). </div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px; "><br></div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px; ">I don't observe any edge effects in my data (with the -1500 to 0 ms as a baseline), but I don't have other way to verify this and I'd like to make sure of it. Also, I believe that this is related to the fact that my ERSP plots only show from around -1088ms to 1586ms (instead of -1500 to 2000), but I would like to understand this better.</div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px; ">Could anybody explain why I shouldn't worry about edge artifacts when using newtimef to calculate the ERSPs?</div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px; ">Many thanks,</div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px; ">Ana<span style="font-size: 12pt; "> </span></div><pre> </pre> </div></body>
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