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<div dir="ltr">Good call Tarik. P300 seems a good high amplitude component to start testing a lab out with on one healthy young adult using some form of oddball paradigm, before making adjustments to the lab. Trying out the real macoy is a good place to start. The right number of trials to get a the signal:noise needed will depend on your lab and how you set it up. In practise, not every factor that causes noise can be always be identified, controlled, or eliminated. Various tests involving a bucket or even a melon can be revealing about sources of external noise if this becomes a concern. T.<br><div> </div><br> <br><div><div id="SkyDrivePlaceholder"> </div><hr id="stopSpelling">From: tarikbelbahar@gmail.com<br>Date: Wed, 29 Aug 2012 17:56:25 -0700<br>Subject: Re: [Eeglablist] How many epochs to average for the ERP<br>To: ith@deakin.edu.au<br>CC: eeglablist@sccn.ucsd.edu; tom_campbell75@hotmail.com<br><br>If you're just starting off for the first time,<div>please do yourself a favor and read the whole</div><div>ERP bible, not just the ten commandments.</div><div><br></div><div><div>hope this helps you a bit.</div><div><br>
</div><div>search your topic on google scholar.</div><div>read and depend on multiple </div><div>articles in high-level journals</div><div>by the experts on your topic.</div><div>This is a necessary step in designing any study</div>
<div>and making your research effective in possibly </div><div>contributing to current questions or problems.</div><div><br></div><div>searching p300 number of trials on Google Scholar gives: </div><div><br></div><div>Please read the articles below closely...</div>
<div><font class="ecxApple-style-span" size="1"><br></font></div><div><font class="ecxApple-style-span" size="1"><span style="color: rgb(34, 34, 34); line-height: 16px; font-family: Arial,sans-serif;" class="ecxApple-style-span"><h3 style="border-width: 0px; padding: 0px; font-weight: normal; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class="ecxgs_rt">
<a style="color: rgb(17, 34, 204); text-decoration: underline; outline-style: none;" href="http://www.sciencedirect.com/science/article/pii/S016787609600743X" target="_blank">On the <b style="color: rgb(17, 34, 204);">number </b>of <b style="color: rgb(17, 34, 204);">trials </b>needed for <b style="color: rgb(17, 34, 204);">P300</b></a></h3>
<div style="border-width: 0px; padding: 0px; color: rgb(0, 153, 51); margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class="ecxgs_a">
J Cohen, J Polich - International Journal of Psychophysiology, 1997 - Elsevier </div><div style="border-width: 0px; padding: 0px; color: rgb(0, 153, 51); margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class="ecxgs_a">
<br></div></span><span style="color: rgb(34, 34, 34); line-height: 16px; font-family: Arial,sans-serif;" class="ecxApple-style-span"><h3 style="border-width: 0px; padding: 0px; font-weight: normal; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class="ecxgs_rt">
<a style="color: rgb(17, 34, 204); text-decoration: underline;" href="http://www.sciencedirect.com/science/article/pii/s1388-2457%2809%2900518-5" target="_blank">Event-related potentials in clinical research: guidelines for eliciting, recording, and quantifying mismatch negativity, P300, and N400</a></h3>
<div style="border-width: 0px; padding: 0px; color: rgb(0, 153, 51); margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class="ecxgs_a">
CC Duncan, RJ Barry, JF Connolly, C Fischer¡ - Clinical ¡, 2009 - Elsevier</div></span></font></div><div><font class="ecxApple-style-span" size="1"><br></font></div><span style="color: rgb(34, 34, 34); line-height: 16px; font-family: Arial,sans-serif;" class="ecxApple-style-span"><font class="ecxApple-style-span" size="1"><h3 style="border-width: 0px; padding: 0px; font-weight: normal; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class="ecxgs_rt">
<a style="color: rgb(17, 34, 204); text-decoration: underline;" href="http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8986.2010.01152.x/full" target="_blank">On the <b style="color: rgb(17, 34, 204);">number </b>of <b style="color: rgb(17, 34, 204);">trials </b>needed for a stable feedback©\related negativity</a></h3>
<div style="border-width: 0px; padding: 0px; color: rgb(0, 153, 51); margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class="ecxgs_a">
J Marco©\Pallares, D Cucurell, TF M¨¹nte¡ - ¡, 2011 - Wiley Online Library</div></font></span><br><div>Also please note that there is a movement in EEG/ERP research to explode the ERP,</div><div>and understand topics such as single-trial variability,</div>
<div>variability within subjects, and even more simply,</div><div>visualizing single-trial EEG via tools such as eeglab's erpimage.</div><div><br></div><div><br></div><div>last, if you want to test your EEG system,</div>
<div>I suggest you read Steve Luck's Chapter</div><div>on Setting up a Lab, and that you do </div><div>testing to check your hardware, connections,</div><div>stimulus timing, etc... </div><div>Good luck and let the list know</div>
<div>how things go!</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br>
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