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. 2002 May 1;22(9):3739–3754. doi: 10.1523/JNEUROSCI.22-09-03739.2002

Fig. 12.

Fig. 12.

An example of enhanced oscillatory synchronization caused by stimulus contrast-dependent selection. All panels show data from neurons activated by the nondominant eye.A shows STAs, B the power spectra of the STAs, C the STPs (i.e., the average power spectra of all the LFP segments included in the computation of the respective STA), and D the SFCs (i.e., the power spectra of the STAs normalized by the respective STPs and multiplied by 100). InA–D, the blue graph shows data obtained with monocular high-contrast stimulation of the nondominant eye, and the red graphs show data recorded with dichoptic stimulation, i.e., with additional low-contrast stimulation of the dominant eye. As shown by both the power of STA and the SFC, contrast-driven stimulus selection leads to enhanced gamma-frequency synchronization.