Associations between Hallucinogen Persisting Perception Disorder (HPPD) and non-visual perceptual disturbances - “exploring potential links between HPPD and other perceptual disturbances, such as tinnitus and migraine with aura” via @PsyArXivBot #flashbacks #hallucinogens #HPPD https://psyarxiv.com/xeg96/