Fig. 2: Sensor-level analysis of oscillatory strength.
From: Hippocampal and cortical oscillatory dynamics support semantic processing and performance
a MEG time-frequency spectrograms with time (ms) on the x-axis and frequency (Hz) on the y-axis. The onset of the prime word was 0 ms and the onset of the target word was 750 ms. Power is shown in percent change units relative to the baseline period (−1000 to −300 ms). Data has been averaged across all trials and all participants. b After projecting the data into source space, grand averages were computed across all participants and conditions. There was a sustained increase in theta (3–6 Hz) in the hippocampus and left frontal cortex (bottom), while increases in gamma (62–76 Hz) were observed near the occipital cortex (top). White boxes denote the time-frequency windows used for beamforming. These time-frequency windows were statistically significant (p < 0.001, corrected) in the sensor level analyses. N = 150 participants.
