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| d (KSS) | d (O1α) | d (F3α) | d (C3α) | |
|---|---|---|---|---|
| d (KSS) | 1 | |||
| d (O1α) | 0.224 | 1 | ||
| d (F3α) | 0.209 | 0.755** | 1 | |
| d (C3α) | 0.056 | 0.517** | 0.580** | 1 |
| Mean±SD | 0.91±1.01 | -0.11±1.16 | -0.29±1.43 | -0.24±0.92 |
**p<0.01.
α, alpha wave; C3, left central area; d, difference score; F3, left frontal area; KSS, Karolinska Sleepiness Scale; O1, left occipital area; SD, standard deviation.
