An amplitude-modulated visual stimulation for reducing eye fatigue in SSVEP-based brain-computer interfaces

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Paper

Link: https://pubmed.ncbi.nlm.nih.gov/24368034/
Year: 2014

Summary

• reduction of eye fatigue for SSVEP
• Four targets were used in combinations of three different modulating frequencies and two different carrier frequencies in the offline experiment, and two additional targets were added with one additional modulating and one carrier frequency in online experiments
• results: caused lower eye fatigue and less sensing of flickering than a low-frequency stimulus, in a manner similar to a high-frequency stimulus

Results

• caused lower eye fatigue and less sensing of flickering than a low-frequency stimulus, in a manner similar to a high-frequency stimulus
• actual stimulus frequencies of AM-SSVEPs are in the high-frequency band, resulting in reduced eye fatigue