Table 1 Centroid frequency, latency, and relative probability for each spectral-temporal feature (gamma, beta, theta-1, theta-2, and theta-2b) and each contrast condition: non-speech (noise-tone), vowel (/i/–/a/), and consonant (/da/–ba/)
From: Spectral-temporal EEG dynamics of speech discrimination processing in infants during sleep
|  | Noise-tone | /i/–/a/ | /da/–/ba/ |
|---|---|---|---|
Gamma | Â | Â | Â |
Frequency (Hz) | 33.94 | 35.71 | 35.71 |
Latency (ms) | 22 | 20 | 59 |
Relative probability | 0.25 | 0.09 | 0.38 |
Beta | Â | Â | Â |
Frequency (Hz) | 17.56 | 16.28 | 18.47 |
Latency (ms) | 56 | 56 | 147 |
Relative probability | 0.37 | 0.16 | 0.40 |
Theta-1 | Â | Â | Â |
Frequency (Hz) | 5.07 | 4.70 | 2.09 |
Latency (ms) | 58 | 69 | 187 |
Relative probability | 1.00 | 0.62 | 0.92 |
Theta-2 | Â | Â | Â |
Frequency (Hz) | 7.05 | 5.91 | 5.76 |
Latency (ms) | 194 | 242 | 225 |
Relative probability | 0.78 | 0.54 | 0.76 |
Theta-2b | Â | Â | Â |
Frequency (Hz) | 2.98 | 2.83 | 2.90 |
Latency (ms) | 481 | 493 | 516 |
Relative probability | 0.26 | 0.20 | 0.38 |