Evidence map›Paper›PMID 29123464›Full record

ArticleFrontiers in neuroscience2017

Pattern Separation: A Potential Marker of Impaired Hippocampal Adult Neurogenesis in Major Depressive Disorder.

Kellen Gandy, Sohye Kim, Carla Sharp, Lilian Dindo, Mirjana Maletic-Savatic, Chadi Calarge

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.8field-weighted citation impact, top 10% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 64 citations in OpenAlex.

  1. Obesity and Depression: A Pathophysiotoxic Relationship.International journal of molecular sciences · 2025
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  20. The Entorhinal Cortex and Adult Neurogenesis in Major Depression.International journal of molecular sciences · 2021
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Kellen GandyMenninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, United States.
Sohye KimMenninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, United States.
Carla SharpDepartment of Psychology, University of Houston, Houston, TX, United States.
Lilian DindoMenninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, United States.
Mirjana Maletic-SavaticDepartment of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States.
Chadi CalargeMenninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, United States.
Texas Children's Hospital · USBaylor College of Medicine · USUniversity of Houston · US

Funding

Imaging Mass Spectrometry for metabolome mappingR01GM120033 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI LIU, ZHANDONG, MALETIC-SAVATIC, MIRJANA · 2017 to 2021
$2.5M
NIGMS NIH HHS R01 GM120033
6 · The paper itself

Abstract

Adult neurogenesis involves the generation of new neurons, particularly in the dentate gyrus of the hippocampus. Decreased hippocampal neurogenesis has been implicated in both animal models of depression and in patients with major depressive disorder (MDD), despite some inconsistency in the literature. Here, we build upon current models to generate a new testable hypothesis, linking impaired neurogenesis to downstream psychological outcomes commonly observed in MDD. We contend that disruption in adult neurogenesis impairs pattern separation, a hippocampus-dependent function requiring the careful discrimination and storage of highly similar, but not identical, sensory inputs. This, in turn, can affect downstream processing and response selection, of relevance to emotional wellbeing. Specifically, disrupted pattern separation leads to misperceived stimuli (i.e., stimulus confusion), triggering the selection and deployment of established responses inappropriate for the actual stimuli. We speculate that this may be akin to activation of automatic thoughts, described in the Cognitive Behavior Theory of MDD. Similarly, this impaired ability to discriminate information at a fundamental sensory processing level (e.g., impaired pattern separation) could underlie impaired psychological flexibility, a core component of Acceptance and Commitment Therapy of MDD. We propose that research is needed to test this model by examining the relationship between cognitive functioning (e.g., pattern separation ability), psychological processes (e.g., perseveration and psychological inflexibility), and neurogenesis, taking advantage of emerging magnetic resonance spectroscopy-based imaging that measures neurogenesis

Indexed as

dentate gyrusemotional dysfunctionmajor depressive disorderneurogenesispattern separationpsychological inflexibilityRDoC matrix

Identifiers

PMID29123464
PMCPMC5662616
OpenAlexW2767077427

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.