become psychotic

The judge said Chail had "lost touch with reality such that he had become psychotic" by the time he entered Windsor Castle but his responsibility for his offences was significant.

“When they cross the line, they become psychotic, maniacal competitors that have the ability to will their teams to a championship level.”

To the man who can’t sleep, to the woman so racked by anxiety that she has begun to pull out her own hair, to the miserable college student whose postgraduate plans have evaporated along with the economy, to the parents of the high schooler who suddenly believes that the furniture in the house in which he is trapped is alive, and who, in less extraordinary times, probably would not have become psychotic, “I’m so sorry” is all I seem to have to offer.

Isolated prisoners often become psychotic from sensory deprivation.

But experts said at the time that this could be because psychotic patients turn to marijuana when they're feeling less stable or because genetics make a person likely to both become psychotic and want to use pot.