Electrical charges are responsible for brain activity, so in theory, he can f*ck them all up.
Seemed to have had an easy time with Glads, no?
The problem with "omega" energy manipulators is that they can do almost anything writers want them to... or they can disappoint, job & lose if the plot needs it.
Hyperion certainly needed to breathe in Supreme Power, so probably has a normal mind. Hickman Hyperion for me probably could do whatever he wanted to Vulcan.