<div dir="ltr"><div>Here's the citation:<br><br></div>Hauk, Davis, Ford, Pulvermuller, & Marslen-Wilson (2006). "The time course of visual word-recognition as revealed by linear regression analysis of ERP data." Neuroimage 30(4):1383-1400<br>
<div><br></div><div>The method they describe is to regress EEG amplitude on predictors (in your case, the predictor would be reaction time) at every (channel, sample) point. Alternatively, if you have a specific time window you're interested in, you could compute the mean amplitude (or whatever other measure you are interested in) for that part of the waveform for each trial, and regress that measure on reaction time.<br>
</div><div><br></div><div>Best,<br>Steve<br><br></div><div><br>Stephen Politzer-Ahles<br>New York University, Abu Dhabi<br>Psychology Department<br><a href="http://files.nyu.edu/spa268/public">http://files.nyu.edu/spa268/public</a><br>
<br><br>On Wed, Aug 7, 2013 at 7:43 PM, Iman M.Rezazadeh <<a href="mailto:irezazadeh@ucdavis.edu">irezazadeh@ucdavis.edu</a>> wrote:<br>><br>> Hi Steve,<br>><br>> Thanks for your reply!<br>><br>> Could you please specify the title of the paper that you just mentioned ?<br>
><br>> FYI , I am studying both behavioral and electrophysiological responses in different experimental conditions. So, I would like to find the correlation btw single trial ERP and its reaction time.<br>><br>> <br>
><br>> Best,<br>><br>> Iman<br>><br>> <br>><br>> From: Stephen Politzer-Ahles [mailto:<a href="mailto:politzerahless@gmail.com">politzerahless@gmail.com</a>]<br>> Sent: Wednesday, August 07, 2013 9:28 AM<br>
> To: Iman M.Rezazadeh<br>> Cc: eeglablist<br>> Subject: Re: [Eeglablist] Single Trial vs Reaction Time Analysis in ERPIMAGE<br>><br>> <br>><br>> Hi Iman,<br>><br>> <br>><br>> I guess it depends on the hypothesis you're trying to test and what you mean by relating reaction time to EEG. One approach would be to use the method described in Hauk et al. (2006), which is just to regress the EEG at every (channel, sample) point on the reaction time for the corresponding trial (and any other independent variables of interest); that yields an event-related regression coefficient which can be quantified in the same way as an event-related potential (amplitude, latency, etc.). I am not sure if there's a built-in function for this in EEGLAB (there could be one, I'm just not aware of it), but it's fairly straightforward to do with basic MATLAB built-ins.<br>
><br>> <br>><br>> Best,<br>><br>> Steve<br>><br>><br>> <br>><br>> <br>><br>> Stephen Politzer-Ahles<br>> New York University, Abu Dhabi<br>> Psychology Department<br>> <a href="http://files.nyu.edu/spa268/public">http://files.nyu.edu/spa268/public</a><br>
><br>> <br>><br>> On Wed, Aug 7, 2013 at 12:56 AM, Iman M.Rezazadeh <<a href="mailto:irezazadeh@ucdavis.edu">irezazadeh@ucdavis.edu</a>> wrote:<br>><br>> Hi EEGLABers,<br>><br>> Does have anyone any opinion about how relate signal trial EEG with its corresponding reaction time rather than peak-reaction time relationship? In other word, I am looking for a way to quantify ERPIMAGE and compare it btw two different groups or even subjects. STUDY is not proper for my approach.<br>
><br>> <br>><br>> <br>><br>> <br>><br>> Iman M.Rezazadeh, PhD<br>><br>> Postdoctoral Research Fellow<br>><br>> Center for Mind and Brain<br>><br>> University of California, Davis<br>
><br>> <a href="http://www.linkedin.com/pub/iman-m-rezazadeh/10/859/840">www.linkedin.com/pub/iman-m-rezazadeh/10/859/840</a><br>><br>> <a href="http://mindbrain.ucdavis.edu/people/imanmr">http://mindbrain.ucdavis.edu/people/imanmr</a><br>
><br>> email : <a href="mailto:irezazadeh@ucdavis.edu">irezazadeh@ucdavis.edu</a><br>><br>> Tel: 530-297-4444<br>><br>> Cell:310-490-1808<br>><br>> Skype: Imanmr<br>><br>> ایمان محمد رضازاده<br>
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