REPEATED LSD INGESTION AND PERFORMANCE ON NEUROPSYCHOLOGICAL TESTS
M. Erik Wright, Terrence P. Hogan
The Journal of Nervous and Mental Disease June 1, 1972 DOI: 10.1097/00005053-197206000-00005 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Observational cohort Peer reviewed |
|---|---|
| Sample size | 40 |
| Population | LSD users and normal controls matched for age, sex, education, and intelligence |
| Topics | LSD |
| Keywords | Neuropsychology Significant difference Neuropsychological test Clinical psychology Audiology Test biology Developmental psychology Cognition |
| Citations | 31 |
| Key findings | LSD users did not differ from matched controls on the Halstead-Reitan neuropsychological battery or from university students on the Halstead-Wepman Aphasia Test. |
Abstract
The results on the Halstead-Reitan neuropsychological battery were compared for a group of 20 LSD users and a normal control group matched for age, sex, education, and intelligence. Only one of 20 variables was significantly different at the 5 per cent level and this was thought to be due to chance. Thus, it was concluded that there was no difference between the two groups. A further comparison between LSD users and university students yielded no significant difference in the Halstead-Wepman Aphasia Test.
Comparable studies
Other observational and cohort studies on LSD, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Increased Global Functional Connectivity Correlates with LSD-Induced Ego Dissolution. Human participants | 2016 | Observational cohort | |
| Increased spontaneous MEG signal diversity for psychoactive doses of ketamine, LSD and psilocybin Humans | 2017 | Observational study | |
| Classic psychedelic use is associated with reduced psychological distress and suicidality in the United States adult population. USA adult respondents from the National Survey on Drug Use and Health (2008-2012) | 2015 | Observational cohort | n = 190,000 |
| Psychedelics not linked to mental health problems or suicidal behavior: A population study Randomly selected United States adults | 2015 | Observational cohort | n = 135,095 |
| Whole-Brain Multimodal Neuroimaging Model Using Serotonin Receptor Maps Explains Non-linear Functional Effects of LSD. Healthy human participants | 2018 | Observational study with computational modeling |
Citations in the library
Cited by 6
- Chronic 3,4-Methylenedioxymethamphetamine (MDMA) Use: Effects on Mood and Neuropsychological Function? The American Journal of Drug and Alcohol Abuse 1992
- Neuropsychological Assessment of Undergraduate Marihuana and LSD Users Archives of General Psychiatry November 1, 1974
- Neuropsychological Functioning in Users of Serotonergic Psychedelics – A Systematic Review and Meta-Analysis Frontiers in Pharmacology September 16, 2021
- Synesthetic hallucinations induced by psychedelic drugs in a congenitally blind man. Consciousness and Cognition April 1, 2018
- Acute Effects and Long-Term Neuropsychological Consequences of Classic Psychedelics Use. Current Topics in Behavioral Neurosciences 2026
and 1 more in the library