Figure 2. Neural responses to the visuospatial discrimination task. (Left): Grand-averaged time frequency spectrograms of MEG sensors exhibiting one or more significant responses. Shown from top to bottom: gamma, motor beta, visual beta, alpha, and theta activity. In each spectrogram, frequency (Hz) is shown on the y-axis, and time (ms) is shown on the x-axis. Signal power data are expressed as a percent difference from the baseline period, with color legends shown with each spectrogram. (Right): Grand-averaged beamformer images (pseudo-t) across all participants for each time-frequency component.