Hallucinogen Persisting Perceptual Disorder (HPPD)
Sometimes called 'Flashbacks'
GENERAL INFORMATION #
Long-Term Perceptual Disorder (overview of HPPD and flashbacks) by E. Jonathan Arnett
Visual Phenomenology of the LSD Flashback by Henry D. Abraham, MD
Flashbacks: Recurrent Intrusive Images After the Use of LSD by Mardi Horowitz, MD
A Hypothesis of the Mechanisms Underlying Visual Distortions Caused by Psychedelic Drugs (Berkeley term paper)
RESEARCH & JOURNAL ARTICLES #
Abnormal visual experiences in individuals with histories of hallucinogen use. Drug Alcohol Depend. 2011 Mar 14;114(1):61-7.
"Trailing" phenomenon - A Long-Lasting LSD Side Effect by Harvey Asher, MD
ASK EROWID ANSWERS #
EXPERIENCES #
Use Caution When Dosing, by Tristan Haze
Like No Known Suffering, by Kpars
After the Binge, by ThereAndBack
Manifestation Within Itself, by aconsumingvoid
The Fire in Plato's Cave, by sdavid
Submit a Report to our Experience Vaults
RELATED VAULTS #
OFF-SITE RESOURCES
SECONDARY RESOURCES #
Post-LSD Hallucinosis is associated with decrease in flicker-fusion sensitivities. by Vo Van Toi, H. Abraham, & N. Bursac
Center for Psychological and Spiritual Health
(Note: this resource includes useful information
but is not specifically drug-related)
(Note: this resource includes useful information
but is not specifically drug-related)
RESEARCH & JOURNAL ARTICLES #
5-MeO-DIPT-Related HPPD Case Report, Mar 2005, AJP
MEDIA COVERAGE #
A Trip that Doesn't End - The New Yorker, May 17 2013