No one suspected that agricultural chemicals were the source of his psychotic behavior.

Mental dysfunction - neurotic or psychotic behavior - takes time to develop, and there are usually signs.

Left untreated, the disease can cause delirium and psychotic behavior.

My oblivion was complete, my psychotic behavior obvious to all but me.

None, however, could recall its use as a legal defense for psychotic behavior.

In some cases, the psychotic behavior provoked by the drug becomes permanent.

When these are damaged in a Vulcan, they may trigger violent psychotic behavior.

The cause for the children's increasingly disturbed and psychotic behavior is suggested to be the result of a non-specified sickness.

And this "restructuring" manifests itself as mental illness or psychotic behavior.

Worse, the drug can cause irrational or psychotic paranoid behavior.