[Eeglablist] Latency (time) ranges and Best Channels for each ERP component

[Iversen, John]

Hi Vic,

I would think that any classic EEG textbook would have something on this, and there are surely similar resources on-line (which someone else on the list may know about?):

"Electric Fields of the Brain" by Nunez and Srinivasan
"An Introduction to the Event-Related Potential Technique" by Steven Luck

or perhaps the best for your needs: "The Oxford Handbook of Event-Related Potential Components" ("The first and only comprehensive resource devoted entirely to ERP components").


In the way of some background commentary: Your question is a mainstay of traditional channel-based ERP analysis which has indeed contributed many insights to psychology and you're right that there are patterns there;  in general, EEGLAB does encourage people to think about the more biologically interpretable source-space as Pål mentioned. I think his point was not about uncertainty in defining the channels and windows, for which there are indeed conventions, but the lack of interpretability of such features in terms of brain mechanisms. It all depends on your ultimate aims and interests.

Best,

John

On Aug 9, 2021, at 10:01 AM, vic roc via eeglablist <eeglablist at sccn.ucsd.edu<mailto:eeglablist at sccn.ucsd.edu>> wrote:

Dear Pal

Thanks for your input. I know they have some element of uncertainty to
them. But the likelihood of their appearance is much higher during some
time window and on some spatial positions.

I need these windows and positions.

Kind regards
Vic

On Mon, Aug 9, 2021 at 11:48 AM Pål Gunnar Larsson <pall at ous-hf.no<mailto:pall at ous-hf.no>> wrote:

The components are integrated parts of subcomponents. Hence, they don't
start at a given time and they don't have distinct location. This is due to
the large parallelization in the nervous system.
If you want to explore structures in the brain, you can set up a source
space recording to help with local activities.

Pål G. Larsson M.D., PhD.
Department of Neurosurgery
Division of Surgery and Clinical Neuroscience

Oslo University Hospital
Po.box 4950 Nydalen
0424 Oslo
Norway
Tel:  (+47) 23074407
Mobile: (+47) 93429791
E-mail: pall at ous-hf.no<mailto:pall at ous-hf.no>
not sensitive
-----Opprinnelig melding-----
Fra: eeglablist [mailto:eeglablist-bounces at sccn.ucsd.edu] På vegne av vic
roc via eeglablist
Sendt: 8. august 2021 22:35
Til: eeglablist at sccn.ucsd.edu
Emne: [Eeglablist] Latency (time) ranges and Best Channels for each ERP
component

Dear all

In order to identify each of the ERP components on the ERPs, I need to know
the time ranges for each of the components. For example, for P300, we
expect its peak to happen somewhere (actually sometime) between 250 ms and
500 ms from the onset of the stimulus. I need these 'time ranges' for a
rather large number of different ERP components.

Also each ERP component tends to peak in certain EEG channels more than the
others.

Do you know *a reference (some articles or a books)* that explains and
lists the latency ranges for all ERP components? Otherwise, if you know the
information regarding a few ERP components, please let me know so I can ask
you about my ERP components of interest.

Additionaly, do you know references that explain and list each EEG channel
that is the best electrode (spatial position) in the 10-20 system for
detection of different ERP components?


Many thanks in advance.

Best regards,

Vic
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