Those that involve one of the five senses include: Auditory and visual hallucinations are the two ... conditions (including Parkinson’s disease, epilepsy, and dementia), vision loss, drug ...

As for perceptual phenomena, hypnagogic hallucinations can include abstract visual images ... the impact of neurological diseases, like epilepsy or neurodegenerative disorders.

From the age of 17 years, she had experienced monthly tonic–clonic seizures and visual hallucinations, but electroencephalography (EEG) findings at that time were unremarkable (Figure 1A).