The term Psychogenic referred to experiences that originated from the brain rather then any physical cause.

Talosians possessed susceptive psychogenic abilities, and material illusion was their primary form of defense. (DIS: "If Memory Serves") Telepathy-induced Psychogenic manipulation was also used by a Delta Quadrant organism to lure in prey. It would sense thoughts and create illusions based on desires. (VOY: "Bliss")

Victims of transporter psychosis experienced Hallucinations accompanied by psychogenic hysteria. (TNG: "Realm of Fear")

After Jean-Luc Picard started experiencing what appeared to be time travel in 2370, he underwent a neurographic scan which did not indicate anything that might cause hallucinations or a psychogenic reaction. (TNG: "All Good Things...")

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