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Table 3 One trial of cue presentation

From: Performance evaluation of a motor-imagery-based EEG-Brain computer interface using a combined cue with heterogeneous training data in BCI-Naive subjects

Experi-mental Phase

Display

Blank

Screen

Display Fixation Cross

Beep

for Starting

Sound

"Left" or "Right"

Display Red Cylinder on Left or Right

Beep

for Stopping

Homo-geneous cue

2 seconds

2 seconds

3 seconds

Hetero-geneous cue

2 seconds

2 seconds

2 seconds or 4 seconds, randomly

Stimuli

II

Screen

and/or

Sound

   

  1. One experiment consisted of 50 trials. One trial required 7 and 6 or 8 seconds for presenting the cue to each subject for a motor imagery time of 3 and 2 or 4 seconds with audio-visual stimuli presented randomly and unpredictably.
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BioMedical Engineering OnLine

ISSN: 1475-925X

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