ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2017
Progressive Decline in Hippocampal CA1 Volume in Individuals at Ultra-High-Risk for Psychosis Who Do Not Remit: Findings from the Longitudinal Youth at Risk Study.
Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 51 papers, 2 of them syntheses that pooled it.
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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.
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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.
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Who cites it
51 citing papers in PubMed, 2 syntheses or guidelines pooled it, 83 citations in OpenAlex.
- Longitudinal Structural MRI Findings in Individuals at Genetic and Clinical High Risk for Psychosis: A Systematic Review.Frontiers in psychiatry · 2021Pooled it
- Hippocampal subregion abnormalities in schizophrenia: A systematic review of structural and physiological imaging studies.Neuropsychopharmacology reports · 2018Pooled it
- Diazepam modulates hippocampal CA1 functional connectivity in people at clinical high-risk for psychosis.Psychological medicine · 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
- Oxytocin modulates hippocampal perfusion in people at clinical high risk for psychosis.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2019Trial
- Synergistic pathways to psychosis: understanding developmental risk and resilience factors.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026Review
- Association between loneliness and hippocampal responses to dynamic social stimuli in psychotic disorders.Psychological medicine · 2025Article
- Disturbances in Resting State Functional Connectivity in Schizophrenia: A Study of Hippocampal Subregions, the Parahippocampal Gyrus and Functional Brain Networks.Diagnostics (Basel, Switzerland) · 2025Article
- A longitudinal study of hippocampal subfield volumes and hippocampal glutamate levels in antipsychotic-naïve first episode psychosis patients.Molecular psychiatry · 2025Article
- Hippocampal subfield and amygdala volumes are associated with difficulties in emotion regulation of depressed patients with a history of childhood maltreatment.Frontiers in psychiatry · 2025Article
- A Systematic Review and Meta-Analysis of Arterial Spin Labeling Magnetic Resonance Imaging Studies in Psychosis Spectrum Disorders.Noro psikiyatri arsivi · 2025Review
- Longitudinal study on hippocampal subfields and glucose metabolism in early psychosis.Schizophrenia (Heidelberg, Germany) · 2024Article
- Matrix metalloproteinase 9 (MMP-9) activity, hippocampal extracellular free water, and cognitive deficits are associated with each other in early phase psychosis.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Article
- Smaller anterior hippocampal subfields in the early stage of psychosis.Translational psychiatry · 2024Article
- Longitudinal hippocampal subfield development associated with psychotic experiences in young people.Translational psychiatry · 2024Article
- Hippocampal Network Dysfunction in Early Psychosis: A 2-Year Longitudinal Study.Biological psychiatry global open science · 2023Article
- Microstructural Cortical Gray Matter Changes Preceding Accelerated Volume Changes in Individuals at Clinical High Risk for Psychosis.Research square · 2023Article
- Lack of correlation between hippocampal substructure atrophy and attention dysfunction in deficit schizophrenia.Schizophrenia (Heidelberg, Germany) · 2023Article
- Hippocampal subfields, daily stressors, and resting cortisol in individuals at clinical high-risk for psychosis.Psychoneuroendocrinology · 2023Article
- Altered excitatory and decreased inhibitory transmission in the prefrontal cortex of male mice with early developmental disruption to the ventral hippocampus.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
Corrections and comments
- Erratum issued
Authors and funding
15 authors at 6 institutions in 3 countries.
Funding
Abstract
Most individuals identified as ultra-high-risk (UHR) for psychosis do not develop frank psychosis. They continue to exhibit subthreshold symptoms, or go on to fully remit. Prior work has shown that the volume of CA1, a subfield of the hippocampus, is selectively reduced in the early stages of schizophrenia. Here we aimed to determine whether patterns of volume change of CA1 are different in UHR individuals who do or do not achieve symptomatic remission. Structural MRI scans were acquired at baseline and at 1-2 follow-up time points (at 12-month intervals) from 147 UHR and healthy control subjects. An automated method (based on an ex vivo atlas of ultra-high-resolution hippocampal tissue) was used to delineate the hippocampal subfields. Over time, a greater decline in bilateral CA1 subfield volumes was found in the subgroup of UHR subjects whose subthreshold symptoms persisted (n=40) and also those who developed clinical psychosis (n=12), compared with UHR subjects who remitted (n=41) and healthy controls (n=54). No baseline differences in volumes of the overall hippocampus or its subfields were found among the groups. Moreover, the rate of volume decline of CA1, but not of other hippocampal subfields, in the non-remitters was associated with increasing symptom severity over time. Thus, these findings indicate that there is deterioration of CA1 volume in persistently symptomatic UHR individuals in proportion to symptomatic progression.
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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.