[Eeglablist] Single Trial vs Reaction Time Analysis in ERPIMAGE
Iman M.Rezazadeh
irezazadeh at ucdavis.edu
Wed Aug 7 16:43:42 PDT 2013
Hi Steve,
Thanks for your reply!
Could you please specify the title of the paper that you just mentioned ?
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.
Best,
Iman
From: Stephen Politzer-Ahles [mailto:politzerahless at gmail.com]
Sent: Wednesday, August 07, 2013 9:28 AM
To: Iman M.Rezazadeh
Cc: eeglablist
Subject: Re: [Eeglablist] Single Trial vs Reaction Time Analysis in ERPIMAGE
Hi Iman,
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.
Best,
Steve
Stephen Politzer-Ahles
New York University, Abu Dhabi
Psychology Department
http://files.nyu.edu/spa268/public
On Wed, Aug 7, 2013 at 12:56 AM, Iman M.Rezazadeh <irezazadeh at ucdavis.edu> wrote:
Hi EEGLABers,
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.
Iman M.Rezazadeh, PhD
Postdoctoral Research Fellow
Center for Mind and Brain
University of California, Davis
<http://www.linkedin.com/pub/iman-m-rezazadeh/10/859/840> www.linkedin.com/pub/iman-m-rezazadeh/10/859/840
<http://mindbrain.ucdavis.edu/people/imanmr> http://mindbrain.ucdavis.edu/people/imanmr
email : <mailto:irezazadeh at ucdavis.edu> irezazadeh at ucdavis.edu
Tel: 530-297-4444
Cell:310-490-1808
Skype: Imanmr
ایمان محمد رضازاده
伊芒·瑞扎扎德
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