Dear Imali,<div><br></div><div>> What is the usual practise used for the number of epochs to average to get the ERP?
</div><div><br></div><div>I would not discard a dataset just because it has 20 trials (after bad epoch rejection) as long as it looks ok. So I would say minimum is 20-30 for your P300 task.</div><div><br></div><div>> If anyone can direct me to some papers or references on experimental designs for ERP analysis that will be greatly appreciated.
</div><div><br></div><div>T.W. PICTON, S. BENTIN, P. BERG, E. DONCHIN, S.A. HILLYARD, R. JOHNSON, JR.,</div><div>G.A. MILLER, W. RITTER, D.S. RUCHKIN, M.D. RUGG, M.J. TAYLOR. (2000). Guidelines for using human event-related potentials to study cognition: Recording tandards</div>
<div><div>and publication criteria. Psychophysiology. 37:127–152.</div><div><br></div><div>Makoto</div><div><br></div><div><br></div><br><div class="gmail_quote">2012/8/22 IMALI THANUJA HETTIARACHCHI <span dir="ltr"><<a href="mailto:ith@deakin.edu.au" target="_blank">ith@deakin.edu.au</a>></span><br>
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<p class="MsoNormal">Dear EEGLAB users,<u></u><u></u></p>
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<p class="MsoNormal">I am planning to do an experiment of an ‘oddball’ paradigm , as a pilot test for the new EEG system in our lab. If anyone can give me some guidance on the following questions that will be really helpful and very much appreciated.<u></u><u></u></p>
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<p class="MsoNormal">What is the usual practise used for the number of epochs to average to get the ERP? If we take , say three randomised runs of the oddball experiment for the same subject will averaging the extracted epochs from individual runs be valid
for the ERP?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">If anyone can direct me to some papers or references on experimental designs for ERP analysis that will be greatly appreciated.<u></u><u></u></p>
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<p class="MsoNormal">Many thanks in advance.<u></u><u></u></p>
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<p class="MsoNormal">Regards<u></u><u></u></p>
<p class="MsoNormal">Imali<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman","serif"">Imali Thanuja Hettiarachchi<u></u><u></u></span></b></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">PhD Candidate<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Centre for Intelligent Systems research<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Deakin University,
</span><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Geelong 3217, Australia.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Email:
<a href="mailto:ith@deakin.edu.au" target="_blank"><span style="color:blue">ith@deakin.edu.au</span></a><br>
</span><span style="font-family:"Times New Roman","serif""><a href="http://www.deakin.edu.au/cisr" target="_blank"><span style="color:blue">www.deakin.edu.au/cisr</span></a><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif""><img border="0" width="70" height="73" src="cid:image001.jpg@01CD8121.8B76E060" alt="Description: Description: Description: cid:1216BE20-1800-4A47-8B9F-E7B9D94831CD@deakin.edu.au"></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><u></u><u></u></span></p>
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-- <br>Makoto Miyakoshi<br>JSPS Postdoctral Fellow for Research Abroad<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, University of California San Diego<br><br>
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