Hallucinogen Persisting Perception Disorder HPPD Signs
Some people experience these visual disturbances only once after using hallucinogenic drugs. For others, the disturbances may occur frequently but not be very bothersome. It must be emphasized that individuals without HPPD will sometimes notice visual abnormalities. Likewise, bright lights in an otherwise dark environment may generate trails and halos. Most people don’t notice these …
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