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</o:shapelayout></xml><![endif]--></head><body lang=PT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#1F497D'>Hi<o:p></o:p></span></b></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'>We have been epoching continuous EEG data (30s epochs) for sleep classification through spectral analysis of the epochs.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'>My question would be if EEGLAB does some sort of individual epoch windowing (multiplying the epoch by a tapering window such as the hanning one) prior to the spectral analysis of each epoch, since upon on widowing the epochs edges transitions become reduced.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'>Thanks in advance<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Arnaldo<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>________________________________________________________<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Arnaldo Guimarães Batista, PhD Tel.(+351)21-2949637<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>(Prof. Aux.)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Dept. of Electrical Engineering<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Universidade Nova de Lisboa <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Faculty of Sciences and Technology Email: agb@fct.unl.pt<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Quinta da Torre <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>2829-516 Caparica<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>PORTUGAL<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p></div></body></html>