Table 2 Amplitude, Frequency and PaA are modulated by experimental conditions

From: Fluctuations in instantaneous frequency predict alpha amplitude during visual perception

 

Amplitude

Instantaneous frequency

PaA

Contralateral vs ipsilateral

*t(15) = –3.576, p = 0.0

t(15) = –1.823, p = 0.0827

t(15) = - 3.167, p = 0.0009

Accuracy (contralateral electrodes)

*t(15) = −2.9994, p = 0.0006

*t(15) = 3.399, p = 0.0015

t(15) = −2.279, p = 0.0141

Accuracy (ipsilateral electrodes)

*t(15) = −3.878, p = 0.0

t(15) = 1.583, p = 0.135

*t(15) = −3.597, p = 0.0001

Location×accuracy interaction

*t(15) = −3.197, p = 0.0002

t(15) = 2.549, p = 0.0248

t(15) = 2.134, p = 0.0399

  1. The empirically observed amplitude, instantaneous frequency and predicted alpha amplitude (PaA) as a function of electrode location and behavioral performance. All tests report the maximum or minimum timepoint-by-timepoint t-values over a temporal window extending from target onset to 1000 ms after target onset for amplitude and PaA, and from −500 ms to target onset for frequency. t-values were compared against distributions obtained empirically by randomizing condition labels 10,000 times and then repeating the same statistical test (see Methods). Reported t-values are from the timepoint with smallest p-value. * indicates that p-values were significant after FDR correction at alpha = 0.05 from stimulus onset to + 1000 ms (amplitude and PaA) or −500 ms to target onset (instantaneous frequency)
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