I'm trying to understand neuronal synchronization/desynchronization and oscillation, as well as the psychedelic state. The following sentence confused me a bit.
Psilocybin reduced spontaneous cortical oscillatory power from 1 to 50 Hz in posterior association cortices, and from 8 to 100 Hz in frontal association cortices.
It is taken from this article on how Broadband Cortical Desynchronization Underlies the Human Psychedelic State, featured in the Abstract section.
Now, as far as I've understood, the "power" of an oscillation is the square of its amplitude. In the quoted sentence, they say that the oscillatory "power" decreased with the increase of Hertz. Judging by that sentence, it would seem that an increase in the amplitude of a neuronal oscillation means a decrease in the oscillation's frequency. Is this correct, incorrect or perhaps imprecise?