Focal cognitive seizure with hallucination 2012-07-20T11:56:47Z HP:0012007 HP:0032703 Hallucination is the creation of composite perceptions without the presence of external sensory stimuli, these may be visual (e.g. formed images), auditory (e.g. hearing voices) or involve other sensory modalities, without change in awareness. The sensory phenomena may be accompanied by associated emotion or interpretation e.g. a formed visual image may be accompanied by fear, or may be experienced as persecutory or with paranoia (i.e. with unjustified suspicion / mistrust). These features distinguish focal seizures with hallucinations from focal sensory seizures. A focal cognitive seizure characterized by hallucination as the initial semiological manifestation. Hallucinatory aura Hallucinatory auras UMLS:C4023084 Focal cognitive seizure Cognitive epileptic aura