ArticleScientific reports2018
Optogenetic induction of the schizophrenia-related endophenotype of ventral hippocampal hyperactivity causes rodent correlates of positive and cognitive symptoms.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
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Who cites it
16 citing papers in PubMed, 36 citations in OpenAlex.
- Memantine Effects on Electroencephalographic Measures of Putative Excitatory/Inhibitory Balance in Schizophrenia.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2020Trial
- A developmental gradient of COUP-TFI expression regulates the relative size of hippocampus dorsal and ventral subregions.PLoS biology · 2025Article
- Serotonin Modulation of Dorsoventral Hippocampus in Physiology and Schizophrenia.International journal of molecular sciences · 2025Review
- Scaling of Ventral Hippocampal Activity during Anxiety.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Multi-level therapeutic actions of cannabidiol in ketamine-induced schizophrenia psychopathology in male rats.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Article
- Acute optogenetic induction of the prodromal endophenotype of CA1 hyperactivity causes schizophrenia-related deficits in cognition and salience attribution.Schizophrenia (Heidelberg, Germany) · 2024Article
- The Role of Dopamine D3 Receptors, Dysbindin, and Their Functional Interaction in the Expression of Key Genes for Neuroplasticity and Neuroinflammation in the Mouse Brain.International journal of molecular sciences · 2023Article
- Inhibitory hippocampus-medial septum projection controls locomotion and exploratory behavior.Frontiers in synaptic neuroscience · 2023Article
- Relevance of interactions between dopamine and glutamate neurotransmission in schizophrenia.Molecular psychiatry · 2022Review
- Review
- Structural and Functional Deviations of the Hippocampus in Schizophrenia and Schizophrenia Animal Models.International journal of molecular sciences · 2022Review
- The prediction-error hypothesis of schizophrenia: new data point to circuit-specific changes in dopamine activity.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022Review
- 14-3-3 Dysfunction in Dorsal Hippocampus CA1 (dCA1) Induces Psychomotor BehaviorFrontiers in molecular neuroscience · 2022Article
- Schizophrenia, the gut microbiota, and new opportunities from optogenetic manipulations of the gut-brain axis.Behavioral and brain functions : BBF · 2021Review
- Modular, Circuit-Based Interventions Rescue Hippocampal-Dependent Social and Spatial Memory in a 22q11.2 Deletion Syndrome Mouse Model.Biological psychiatry · 2020Article
- Hippocampal Hyperactivity as a Druggable Circuit-Level Origin of Aberrant Salience in Schizophrenia.Frontiers in pharmacology · 2020Review
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 3 countries.
Funding
Abstract
Pathological over-activity of the CA1 subfield of the human anterior hippocampus has been identified as a potential predictive marker for transition from a prodromal state to overt schizophrenia. Psychosis, in turn, is associated with elevated activity in the anterior subiculum, the hippocampal output stage directly activated by CA1. Over-activity in these subfields may represent a useful endophenotype to guide translationally predictive preclinical models. To recreate this endophenotype and study its causal relation to deficits in the positive and cognitive symptom domains, we optogenetically activated excitatory neurons of the ventral hippocampus (vHPC; analogous to the human anterior hippocampus), targeting the ventral subiculum. Consistent with previous studies, we found that vHPC over-activity evokes hyperlocomotion, a rodent correlate of positive symptoms. vHPC activation also impaired performance on the spatial novelty preference (SNP) test of short-term memory, regardless of whether stimulation was applied during the encoding or retrieval stage of the task. Increasing dopamine transmission with amphetamine produced hyperlocomotion, but was not associated with SNP impairments. This suggests that short-term memory impairments resulting from hippocampal over-activity likely arise independently of a hyperdopaminergic state, a finding that is consistent with the pharmaco-resistance of cognitive symptoms in patients.
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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.