highly significantp < 0.005
The difference in PSD means between the two vigilance groups within the “columnar” band proved to be highly significant (mean WK = 8.7 × 10 −3 ± 1.3 × 10 −3 and mean NREMS = 1.4 × 10 −2 ± 1.7 × 10 −3 (±SEM), p < 0.005).
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Spatial patterns of neuronal activity in rat cerebral cortex during non-rapid eye movement sleep.
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0.0050
0.0560
The sentences
close to significancep = 0.056
For a spatial frequency bin of 1.33–1.64 cycles/mm, individual PSD values differed significantly between groups (two-tailed Mann–Whitney U test, p < 0.05), whereas for bins of 1.8–2.12 and 2.27–2.5 cycles/mm, differences in PSD values were close to significance threshold ( p = 0.056 for each bin).