<div dir="ltr"><div>Dear Hui-bin,</div><div><br></div>> Does the evoked activity and induced activity,which were calculated by subtracting the pre-stimulus power from the post-stimulus power at each frequency, follow the same law?<div><br></div><div>Generally speaking, yes.</div><div><br></div><div>> Is it possible that the magnitudes of the evoked or induced activity at each frequency are equal?<br><div><br></div><div>Yes, that is possible... I mean I can't think of any reason to exclude that possibility.</div></div><div><br></div><div>I'm not sure if I'm answering to your question exactly.</div><div><br></div><div>Makoto</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 19, 2014 at 9:12 PM, Hui-bin Jia <span dir="ltr"><<a href="mailto:420247417@qq.com" target="_blank">420247417@qq.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><font face="Times New Roman" size="4">Hi,everyone</font></div><div><font face="Times New Roman" size="4"> </font></div><div><font face="Times New Roman" size="4"> I have a question about the evoked and induced activity<span style="line-height:0px"></span><span style="line-height:1.5">. </span></font></div><div><span style="line-height:1.5"><font face="Times New Roman" size="4"><br></font></span></div><div><font face="Times New Roman" size="4"><span style="line-height:1.5"> As we all know, spontaneous EEG activity follow " the 1/f law", which means the spectral power of lower band is much larger than </span><span style="line-height:1.5">the spectral power of </span><span style="line-height:1.5">the higher band. In rest EEG, alpha band power may be the largest one.</span></font></div><div><span style="line-height:1.5"><font face="Times New Roman" size="4"> </font></span></div><div><font face="Times New Roman" size="4"><span style="line-height:1.5"> Does the </span><span style="line-height:1.5">evoked activity and induced activity,which were calculated by subtracting the <span></span></span>pre-stimulus power from the <span style="line-height:1.5">post-stimulus power <span style="line-height:0px"></span></span><span style="line-height:1.5">at each frequency, follow the same law? Is it possible that the </span>magnitudes of <span style="line-height:0px"></span><span style="line-height:1.5">the evoked or induced activity at each frequency are equal?</span></font></div><div><span style="line-height:1.5"><br></span></div><div><span style="line-height:1.5"> <font> </font><font face="Times New Roman" size="4"> </font></span><font face="Times New Roman" size="4"><span style="line-height:20px">Any reply will be appreciated !</span></font><span style="color:rgb(51,51,51);font-family:arial;font-size:13px;line-height:20px"><span style="line-height:0px"></span></span></div><div><span style="line-height:1.5"><br></span></div><div><span style="line-height:1.5"><br></span></div><div><span style="line-height:1.5"><font size="4" face="Times New Roman">Yours,</font></span></div><div><span style="line-height:1.5"><font size="4" face="Times New Roman">Hui-bin jia</font></span></div><div><span style="line-height:1.5"><br></span></div><br>_______________________________________________<br>
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