Trial reportHuman brain mapping2018
An investigation of regional cerebral blood flow and tissue structure changes after acute administration of antipsychotics in healthy male volunteers.
Trial report in Human brain mapping, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.
- Molecular and topographic mapping of antipsychotic effects: a meta-analysis of postsynaptic density proteins in animal models with translational implications.Molecular psychiatry · 2026Pooled it
- The GPR139 agonist TAK-041 produces time-dependent alterations to cerebral blood flow and reward system function in patients with schizophrenia: a randomised placebo-controlled trial.Psychopharmacology · 2026Trial
- Antipsychotics cause reversible structural brain changes within one week.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025Trial
- Effects of diazepam on hippocampal blood flow in people at clinical high risk for psychosis.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Trial
- Comparison of Cerebral Blood Flow in Regions Relevant to Cognition After Enzalutamide, Darolutamide, and Placebo in Healthy Volunteers: A Randomized Crossover Trial.Targeted oncology · 2023Trial
- The effect of risperidone on reward-related brain activity is robust to drug-induced vascular changes.Human brain mapping · 2021Trial
- Trial
- Effect of Cannabidiol on Medial Temporal, Midbrain, and Striatal Dysfunction in People at Clinical High Risk of Psychosis: A Randomized Clinical Trial.JAMA psychiatry · 2018Trial
- Reproducible human reward imaging phenotypes exhibit differential sensitivity to dopamine D2 receptor antagonism.Nature communications · 2026Article
- Acute cannabidiol (CBD), tetrahydrocannabinol (THC) and their mixture (THC:CBD) exert differential effects on brain activity and blood flow in rats: A translational neuroimaging study.Journal of psychopharmacology (Oxford, England) · 2026Article
- Reduced cortical cerebral blood flow in antipsychotic-free first-episode psychosis and relationship to treatment response.Psychological medicine · 2023Article
- Subcortical volume reduction and cortical thinning 3 months after switching to clozapine in treatment resistant schizophrenia.Schizophrenia (Heidelberg, Germany) · 2022Article
- Brain responses to glucose ingestion are greater in children than adults and are associated with overweight and obesity.Obesity (Silver Spring, Md.) · 2021Article
- JuSpace: A tool for spatial correlation analyses of magnetic resonance imaging data with nuclear imaging derived neurotransmitter maps.Human brain mapping · 2021Article
- Normalizing the Abnormal: Do Antipsychotic Drugs Push the Cortex Into an Unsustainable Metabolic Envelope?Schizophrenia bulletin · 2020Review
- Striatal Volume Increase After Six Weeks of Selective Dopamine DFrontiers in neuroscience · 2020Article
- Grey Matter Volume Differences Associated with Extremely Low Levels of Cannabis Use in Adolescence.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors at 6 institutions in 3 countries.
Funding
Abstract
Chronic administration of antipsychotic drugs has been linked to structural brain changes observed in patients with schizophrenia. Recent MRI studies have shown rapid changes in regional brain volume following just a single dose of these drugs. However, it is not clear if these changes represent real volume changes or are artefacts ("apparent" volume changes) due to drug-induced physiological changes, such as increased cerebral blood flow (CBF). To address this, we examined the effects of a single, clinical dose of three commonly prescribed antipsychotics on quantitative measures of T1 and regional blood flow of the healthy human brain. Males (n = 42) were randomly assigned to one of two parallel groups in a double-blind, placebo-controlled, randomized, three-period cross-over study design. One group received a single oral dose of either 0.5 or 2 mg of risperidone or placebo during each visit. The other received olanzapine (7.5 mg), haloperidol (3 mg), or placebo. MR measures of quantitative T1, CBF, and T1-weighted images were acquired at the estimated peak plasma concentration of the drug. All three drugs caused localized increases in striatal blood flow, although drug and region specific effects were also apparent. In contrast, all assessments of T1 and brain volume remained stable across sessions, even in those areas experiencing large changes in CBF. This illustrates that a single clinically relevant oral dose of an antipsychotic has no detectable acute effect on T1 in healthy volunteers. We further provide a methodology for applying quantitative imaging methods to assess the acute effects of other compounds on structural MRI metrics. Hum Brain Mapp 39:319-331, 2018. © 2017 Wiley Periodicals, Inc.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.