Neural dynamics differentially encode phrases and sentences during spoken language comprehension
Fig 5
Alpha-band inhibition suggests a separation between phrases and sentences.
Statistical analysis on the induced activity was conducted using a nonparametric cluster-based permutation test (1000 times) on a 1000-ms time window, which started at the audio onset and over the frequencies from 7.5 Hz to 13.5 Hz. The results indicated that the power was higher for sentences than phrases (p < 0.01 **, 2-tailed). (a) The temporal evolution of the cluster that corresponds to the discrimination effect. The activity was drawn by using the averaged induced power of the phrases minus the averaged induced power of the sentences. The topographies were extracted in steps of 50 ms. (b) Induced power averaged over all the sensors in this cluster. The upper panel and the lower panel show the induced power of the phrases and the sentences, respectively.