Hello Mohsen, hope the below helps!<div><div><br></div><div>1. Data is usually very special, and takes a lot of work to collect. Very few people will give it out for free.</div><div>It is impolite and unprofessional to ask in the way you asked, and you are killing your chances of anyone responding to you.</div>
<div>If you are looking for "free data", you might find some if you search for BCI data sets or BCI competitions.</div><div>Search on google for those terms, as well as terms such EEG database. </div><div><br>
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<div>1a. please do note that public depositories of EEG data are still in their early stages.</div><div><br></div><div>2. It is customary to provide more respect, information about yourself, your current work and questions, your affilliation (where you work).</div>
<div>It is also customary to show to explain what you have done already, to show that you are proactive, not just looking for free help from "anyone".</div><div>Please be sure to take the time and energy to do so in the future, so you will have more of a chance of someone taking the time to respond to you.</div>
<div><br></div><div><br></div><div>3. If you are going to have any success finding the data you are looking for you need to also do the following:</div><div>3a. write a much more detailed explanation and request. Specify your hypotheses, and other specifics about work you have done, and work you will do.</div>
<div>3b. search on Google scholar for ten different research groups thtat work on Alzheimer's and EEG, and contact each of them individually,</div><div>at least one of them might have an old dataset they might be willing to share.</div>
<div><br></div><div>4. you can also search on the eeglab list for researchers who have mentioned AD in their communications.</div><div><br></div><div>5. It is unfortunate you have some bad electrodes, but if most are left, you should be able to do some analyses on your data,</div>
<div>unless your recording were with very few channels, or the recording quality was very bad. Good luck with finishing your project,</div><div>and remember one of the key things to learn, is never again record bad data, this is part of being a good scientist! :)</div>
<div><br></div><div>Here 2 or 3 links below, to give you some examples of what you might be looking for. please do not forget to do what I suggest above if</div><div>you wish to succeed in your quest.</div><div><br></div>
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<a href="http://www.medscape.com/viewarticle/723531" class="l" style="color: rgb(17, 34, 204); cursor: pointer; "><font class="Apple-style-span" size="1">New <em style="font-weight: bold; font-style: normal; ">Database</em> of <em style="font-weight: bold; font-style: normal; ">Alzheimer's</em> Trials Available to Researchers <b>...</b></font></a></h3>
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<font class="Apple-style-span" size="1"><cite style="color: rgb(0, 153, 51); font-style: normal; display: inline-block; margin-bottom: 1px; "><a href="http://www.medscape.com/viewarticle/723531">www.medscape.com/viewarticle/723531</a></cite><button class="gbil esw eswd eswh" title="Recommend this page" id="gbpwm_5" style="border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; cursor: pointer; display: inline; height: 15px; margin-left: 5px; overflow-x: hidden; overflow-y: hidden; width: 24px; vertical-align: text-bottom; background-image: url(https://www.google.com/images/nav_logo99.png); background-attachment: initial; background-origin: initial; background-clip: initial; background-color: initial; background-position: 0px -243px !important; background-repeat: initial initial; "></button></font></div>
<font class="Apple-style-span" size="1"><span class="f" style="color: rgb(102, 102, 102); ">by D Brauser</span><br><span class="st" style="line-height: 1.24; "><span class="f" style="color: rgb(102, 102, 102); ">Jun 15, 2010 – </span>New <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">Database</em> of <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">Alzheimer's</em> Trials Available to Researchers, Clinicians <b>...</b> clinical trials and more than 4000 patients with <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">Alzheimer's</em> disease (AD),<b>...</b> <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">EEG</em> in Dementia and Encephalopathy · Huntington Disease Dementia <b>...</b></span></font></div>
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</font></b></span></div><div class="s" style="max-width: 42em; color: rgb(34, 34, 34); font-family: arial, sans-serif; line-height: 13px; background-color: rgb(255, 255, 255); "><span class="st" style="line-height: 1.24; "><font class="Apple-style-span" size="1"><span style="line-height: 13px; float: left; "><span class="b w xsm" style="color: rgb(17, 34, 204); font-weight: bold; cursor: pointer; ">[PDF]</span> </span><div class="vspib" tabindex="0" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; bottom: 0px; cursor: default; height: auto; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 40px; padding-left: 9px; padding-right: 4px; position: absolute; right: -37px; top: -2px; width: 28px; z-index: 3; line-height: 13px; ">
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<a href="http://www.dauwels.com/Papers/Review_AD_short.pdf" class="l" style="color: rgb(17, 34, 204); cursor: pointer; ">On the Early Diagnosis of <em style="font-weight: bold; font-style: normal; ">Alzheimer's</em> Disease from <em style="font-weight: bold; font-style: normal; ">EEG</em> Signals: A <b>...</b></a></h3>
<div class="s" style="max-width: 42em; line-height: 13px; "><div class="f kv" style="color: rgb(102, 102, 102); margin-bottom: 1px; "><cite style="color: rgb(0, 153, 51); font-style: normal; display: inline-block; margin-bottom: 1px; "><a href="http://www.dauwels.com/Papers/Review_AD_short.pdf">www.dauwels.com/Papers/Review_AD_short.pdf</a></cite></div>
<span class="f" style="color: rgb(102, 102, 102); ">File Format:</span> PDF/Adobe Acrobat - <a href="https://docs.google.com/viewer?a=v&q=cache:iOY6tuZ_eusJ:www.dauwels.com/Papers/Review_AD_short.pdf+&hl=en&gl=us&pid=bl&srcid=ADGEEShw6p9XEhSNaKy7Unk3OmgOJhxfH7o9-CVh-sqC_cNSIby4TAj2L6Dpw-LFZxuk8etSQCwIyyZ6ENPKtKuMqo5Vd7j7lLAifpxH6G4Zl9bquXfo-9Bf6okt6zgU8jygFHPOvcaS&sig=AHIEtbR7U4TTnZdlmQ0nvl47jEAllCJ1XA" class="fl" style="color: rgb(17, 34, 204); cursor: pointer; text-decoration: none; ">Quick View</a><br>
<span class="f" style="color: rgb(102, 102, 102); ">by J Dauwels</span> - <a class="fl" href="http://scholar.google.com/scholar?hl=en&lr=&q=related:9ElyzRu-uckJ:scholar.google.com/&um=1&ie=UTF-8&ei=itDjTvGoDKGUiQKkutSdBg&sa=X&oi=science_links&ct=sl-related&resnum=7&ved=0CG4QzwIwBg" style="color: rgb(17, 34, 204); cursor: pointer; text-decoration: none; ">Related articles</a><br>
<span class="st" style="line-height: 1.24; ">proposed to diagnose <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">Alzheimer's</em> disease (AD) from <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">EEG</em> recordings. In this paper, we <b>....</b> Such <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">databases</em> are not publicly available, in contrast to ECG and <b>...</b></span></div>
<div class="s" style="max-width: 42em; line-height: 13px; "><span class="st" style="line-height: 1.24; "><b><br></b></span></div><div class="s" style="max-width: 42em; line-height: 13px; "><span class="st" style="line-height: 1.24; "><h3 class="r" style="font-weight: normal; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; overflow-x: hidden; overflow-y: hidden; text-overflow: ellipsis; white-space: nowrap; ">
<a href="http://en.wikipedia.org/wiki/List_of_neuroscience_databases" class="l" style="color: rgb(17, 34, 204); cursor: pointer; ">List of neuroscience <em style="font-weight: bold; font-style: normal; ">databases</em> - Wikipedia, the free encyclopedia</a></h3>
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</div></div></div><div class="s" style="max-width: 42em; line-height: 13px; "><div class="f kv" style="color: rgb(102, 102, 102); margin-bottom: 1px; "><cite style="color: rgb(0, 153, 51); font-style: normal; display: inline-block; margin-bottom: 1px; "><a href="http://en.wikipedia.org/wiki/List_of_neuroscience_">en.wikipedia.org/wiki/List_of_neuroscience_</a><b>databases</b></cite></div>
<span class="st" style="line-height: 1.24; ">A number of online neuroscience <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">databases</em> are available which provide <b>...</b> images, Human, Macroscopic, MRI datasets, Healthy and <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">Alzheimer's</em> Disease, Yes <b>...</b>Connectomes Project · NIH MRI Study of Normal Brain Development · <em style="font-weight: bold; font-style: normal; color: rgb(0, 0, 0); ">EEG</em> pl <b>..</b></span></div>
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