mne.preprocessing.find_eog_events

mne.preprocessing.find_eog_events(raw, event_id=998, l_freq=1, h_freq=10, filter_length='10s', ch_name=None, tstart=0, reject_by_annotation=False, thresh=None, verbose=None)[source]

Locate EOG artifacts.

Note

To control true-positive and true-negative detection rates, you may adjust the thresh parameter.

Parameters
rawinstance of Raw

The raw data.

event_idint

The index to assign to found events.

l_freqfloat

Low cut-off frequency to apply to the EOG channel in Hz.

h_freqfloat

High cut-off frequency to apply to the EOG channel in Hz.

filter_lengthstr | int | None

Number of taps to use for filtering.

ch_namestr | None

If not None, use specified channel(s) for EOG.

tstartfloat

Start detection after tstart seconds.

reject_by_annotationbool

Whether to omit data that is annotated as bad.

threshfloat | None

Threshold to trigger the detection of an EOG event. This controls the thresholding of the underlying peak-finding algorithm. Larger values mean that fewer peaks (i.e., fewer EOG events) will be detected. If None, use the default of (max(eog) - min(eog)) / 4, with eog being the filtered EOG signal.

verbosebool, str, int, or None

If not None, override default verbose level (see mne.verbose() and Logging documentation for more). If used, it should be passed as a keyword-argument only.

Returns
eog_eventsarray

Events.

Examples using mne.preprocessing.find_eog_events