Fig. 1 | Scientific Reports

Fig. 1

From: Neuropsychological profiles of patients suffering from hallucinogen persisting perception disorder (HPPD): A comparative analysis with psychedelic-using and non-using controls

Fig. 1

Frequency and Duration of Reported Visual Symptoms. Overview of visual symptoms reported by two or more patients, sorted by the number of reports from left to right, with the most reported symptoms first. For those experiencing a given symptom, occurrence frequency was assessed on a five-point Likert scale, ranging from 0 (never) to 5 (more than once per hour). Symptom duration varied from 0 (a few seconds) to 5 (constant).

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