[Eeglablist] ERP output time resolution

[Makoto Miyakoshi]

Dear Joon,

>  but topological p-maps that appear alongside topological ERP maps

??? I don't know what that is. Do we have such a function?

Makoto

On Wed, Sep 2, 2015 at 5:04 PM, Joon Jang <JYJang1 at sheffield.ac.uk> wrote:

> Dear Makoto,
>
> Thank you for your reply.
>
> Sorry, I wasn't clear with my question. I did not mean 'p-waves' that
> occur alongside the plots of single-channel ERP waves, but topological
> p-maps that appear alongside topological ERP maps. Could you please point
> me to a source that confirms which method of temporal interpolation is used
> for this function (which we believe is pop_chanplot() )?
>
> Thank you.
>
> Joon
>
> On 2 September 2015 at 18:07, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
> wrote:
>
>> Dear Joon,
>>
>> > We acquired data at 500 Hz.
>>
>> So your data is sampled at every 2 ms.
>>
>> > I was able to obtain a significance value at each time point (in every
>> millisecond resolution, not every 2ms).
>>
>> This does not make sense to me. Is it because you downsampled data?
>> What's the interval between the timepoints now?
>>
>> > I was able to find that spline interpolation was used in
>> "eeg_amplitudearea". Does this apply to the significance wave?
>>
>> I have no idea. It is possible, but I don't see any necessity to apply
>> temporal interpolation there.
>>
>> Makoto
>>
>> On Mon, Aug 24, 2015 at 5:21 AM, Joon Jang <JYJang1 at sheffield.ac.uk>
>> wrote:
>>
>>> Dear EEGlab users,
>>>
>>> I am new to EEGlab. We acquired data at 500 Hz. When I plotted ERP wave
>>> forms in 2 conditions with a significance wave using EEGlab, I was able to
>>> obtain a significance value at each time point (in every millisecond
>>> resolution, not every 2ms).
>>>
>>> Theoretically, I should not be able to obtain this since it is not the
>>> increments of 2ms.
>>> I was able to find that spline interpolation was used in
>>> "eeg_amplitudearea". Does this apply to the significance wave?
>>>
>>> Thank you.
>>>
>>> Joon
>>>
>>>
>>>
>>>
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>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>
>


-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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