The 250 ms before the stimulus is used as a measure of “baseline” activity. For each epoch (time window before & after the stimulus), the...

When the data is imported, it is one continuous segment. Epoching is extracting a data segment from just before and after each stimulus....

Each electrode receives signals from a combination of various neural and non-neural sources, such as eye movements, muscle movements,...

In order to understand filtering, you need a basic understanding of Fourier Transforms. Read An Introduction to the Event-related...

French mathematician Joseph Fourier introduced the Fourier Series in 1807, and today the Fourier transform is used a wide variety of...

Deleting Channels We may want to delete bad channels. For example, we may delete channels around the face and neck that are receiving too...