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. 2015 Apr 1;113(10):3798–3815. doi: 10.1152/jn.00923.2014

Fig. 12.

Fig. 12.

Functional connectivity. Spectral coherence and phase synchrony during visual stimulation between V1 and PFC were reduced with iso-xylazine anesthetics. A: single electrodes in V1 and PFC were used to assess functional connectivity between these cortical areas. Group-averaged and time-averaged spectral coherence between V1 and PFC during visual stimulation. Spectral coherence was highest in awake animals (blue line) across frequencies compared with animals anesthetized with 0.5% iso with xlyazine (green line) or 1.0% iso with xlyazine (red line). B: mean spectral coherence between V1 and PFC during stimulation in each frequency band. Error bars indicate 1 SE. *Significantly different at P < 0.05. C: group-averaged and time-averaged phase synchrony between V1 and PFC (V1-PFC PLV) was highest in awake animals (blue line) across frequencies compared with animals anesthetized with 0.5% iso with xlyazine (green line) or 1.0% iso with xlyazine (red line). Awake animals exhibited a local peak in V1-PFC PLV in the theta frequency band. D: mean V1-PFC PLV during visual stimulation in each frequency band. Error bars indicate 1 SE. *Significantly different at P < 0.05.