[Eeglablist] Single Trial vs Reaction Time Analysis in ERPIMAGE

[Stephen Politzer-Ahles]

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.
> ****
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> Iman M.Rezazadeh, PhD****
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> ایمان محمد رضازاده****
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