The FreqTag toolbox: A principled approach to analyzing electrophysiological time series in frequency tagging paradigms.

ABSTRACT: Steady-state visual evoked potential (ssVEP) frequency tagging is an increasingly used method in electrophysiological studies of visual attention and perception. Frequency tagging is suitable for studies examining a wide range of populations, including infants and children. Frequency tagging involves the presentation of different elements of a visual array at different temporal rates, thus using stimulus timing to "tag" the brain response to a given element by means of a unique time signature. Leveraging the strength of the ssVEP frequency tagging method to isolate brain responses to concurrently presented and spatially overlapping visual objects requires specific signal processing methods. Here, we introduce the FreqTag suite of functions, an open source MATLAB toolbox. The purpose of the

SUBMITTER: Figueira JSB 

PROVIDER: S-EPMC8861396 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature