<body bgcolor="#ffffff" background="" class="mceContentBody" ><p>Hi <span style="font-size: 9pt;"><span style="font-family: verdana,geneva;"><span style="background-color: transparent;"><span style="color: #000000;"><span style="color: #000000;">Muthuraman,</span></span></span></span></span></p>
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<p><span style="font-size: 9pt;"><span style="font-family: verdana,geneva;"><span style="background-color: transparent;"><span style="color: #000000;"><span style="color: #000000;">I think the correct way to do DICS on more braodband signals is to estimate the cross spectral density matrix using the multitaper method and to give the desired bandwidth as the parameter for spectral smoothing (cfg. tapsmofrq). I think the final bandwidth is 2x this value centered on the DICS frequency. Since the spectral concentration profile gets more and more rectangular with increasing taper number, this should be very similar to defining a band of interest.</span></span></span></span></span></p>
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<p><span style="font-size: 9pt;"><span style="font-family: verdana,geneva;"><span style="background-color: transparent;"><span style="color: #000000;"><span style="color: #000000;">Michael<br /></span></span></span></span></span></p>
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<b>Von:</b> Muthuraman Muthuraman <muthuraman10@HOTMAIL.COM><br /><b>Gesendet:</b> Mar 31, 2010 4:03:07 PM<br /><b>An:</b> FIELDTRIP@NIC.SURFNET.NL<br /><b>Betreff:</b> [FIELDTRIP] DICS on Frequency bands!<br /><br />
<div class="hmmessage">Hello Fieldtrippers,<br /> <br /> In order to do the source analysis DICS on a band of frequencies. For example the beta band (15-30 Hz), the source analysis need to repeated for each frequency and grandaverage need to be done for all these frequencies. Or is there a way to do for the whole frequency band?<br /> <br /> Thanking you <br /> <br /> With regards,<br /> M.Muthuraman.<br /><br />
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