Performance Analysis With Different Types of Visual Stimuli in a BCI-Based Speller Under an RSVP Paradigm.

Front Comput Neurosci · 2020 · PMC7814000 · PMID 33469425

Europe PMC DOI

hedged sentences

0.0640

closest p · 1.3× alpha

0.0780

boldest claim

The sentences

near nominal significancep = 0.064so close (0.05 < p ≤ 0.1)

Note that the comparison of FF and NP was near nominal significance for speed [ t (10) = 2.085; p = 0.064].

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a trend close to significancep = 0.078so close (0.05 < p ≤ 0.1)

However, a comparison between WL and FF conditions showed a trend close to significance [ t (10) = 1.961; p = 0.078].

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marginally significantno p-value reported

Likewise, some marginally significant differences were revealed when the average accuracy and ITR of all sequences were calculated (WL, 90.74 ± 5.44% and 20.95 ± 3.88 bits/min; FF, 94.32 ± 3.5% and 23.75 ± 3.34 bits/min; NP, 93.39 ± 4.36% and 23.23 ± 4 bits/min).

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did not reach statistical significanceno p-value reported

The FF condition achieved similar results in accuracy and ITR (75 ± 13.69% and 40.01 ± 16.1 bits/min) to the NP (76.18 ± 14.24% and 41.46 ± 16.62 bits/min) in the first sequence, but it was still slightly lower and, thus, did not reach statistical significance when compared with WL, neither for accuracy nor ITR (WL: 67.01 ± 13.99% and 31.45 ± 12.58 bits/min).

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