This idea has been around for a long time, e.g., Buffalo, et al 2011 www.pnas.org/doi/full/10....

Laminar differences in gamma and alpha coherence in the ventral stream | Proceedings of the National Academy of Sciences

Attention to a stimulus enhances both neuronal responses and gamma frequency synchrony in visual area V4, both of which should increase the impact ...

“… gamma synchrony was enhanced by attention.”— WOW, very cool!

Thanks for the headsup!