The StiMiC project aims at investigating the effect of electrical stimulations using depth electrode in epilectic drug refractory patients.

Stimulation Event List and Epoch creation

The first step fot the Stimic project is to list all the stimulations, their localization, the electrical parameters, and associate each stimulation with its potential effect on the iEEG

To gain speed, a semi-automatic detection pipeline was developped. The different steps are :

1. Clean the different EDF files, keep only good EEG channels
2. Run the stimulation detector
3. Visual check of the event detected using micmac and export the corrected event list.
4. Re-organized the csv file (in Excel) and add a bipolar channel column
5. Concatenate these event files for all edf files

See this article Stim Event List / Epoch Creation

The details of the detection algorithm can be found here

Analysis

Counting the number of stimulations in function of the stimulation parameters and channel location : Stim Count

Caracterization of the stimulation artifacts : Artifact Carac.

Evolution of the stimulation artefact in relation with the distance between the stimulation site and the recording contact : Artifact evolution with the distance