Evidence map›Paper›PMID 25990704›Full record

ArticleSchizophrenia research2015

Effects of sex, menstrual cycle phase, and endogenous hormones on cognition in schizophrenia.

Leah H Rubin, C Sue Carter, Lauren L Drogos, Hossein Pournajafi-Nazarloo, John A Sweeney, Pauline M Maki

Abstract read
In one paragraph

Article in Schizophrenia research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.7field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 37 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. The influence of sex on cognition in psychosis.Schizophrenia research. Cognition · 2026
    Article
  5. Article
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  7. The psychedelic-peptide paradox: a hormetic hypothesis.Comprehensive psychoneuroendocrinology · 2025
    Review
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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 5 institutions in 2 countries.

Leah H RubinDepartment of Psychiatry, Women's Mental Health Research Program, University of Illinois at Chicago, Chicago, IL, USA. Electronic address: lrubin@psych.uic.edu.
C Sue CarterKinsey Institute, Indiana University, IN, USA.
Lauren L DrogosDepartment of Psychiatry, Women's Mental Health Research Program, University of Illinois at Chicago, Chicago, IL, USA; Department of Physiology and Pharmacology and Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
Hossein Pournajafi-NazarlooPsychiatry, University of North Carolina, Chapel Hill, NC, USA.
John A SweeneyDepartment of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Pauline M MakiDepartment of Psychiatry, Women's Mental Health Research Program, University of Illinois at Chicago, Chicago, IL, USA; Department of Psychology, University of Illinois at Chicago, USA.
University of Illinois Chicago · USIndiana University · USThe University of Texas Southwestern Medical Center · USUniversity of Calgary · CAUniversity of North Carolina at Chapel Hill · US

Funding

Why is the prevalence of obesity so high in U.S. Southern States? Regional predictors of BMI and obesity treatment response.P30DK056336 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI James O Hill · 2000 to 2026
$31.9M
Zevalin Radioimmunotherapy Using a Modified TreatmentM01RR000032 · NCRR · UNIVERSITY OF SOUTHERN CALIFORNIA · PI RICH, ROBERT R. · 1985 to 2008
$23.6M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR029879 · NCRR · UNIVERSITY OF ILLINOIS AT CHICAGO · PI MAZZONE, THEODORE · 2009 to 2011
$11.0M
UIC Program for Interdisciplinary Careers in Women's Health ResearchK12HD055892 · NICHD · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GELLER, STACIE E. · 2007 to 2016
$4.9M
Effects of Estrogen on Cognition in SchizophreniaF31MH082480 · NIMH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RUBIN, LEAH HELANE · 2007 to 2008
$62k
NCRR NIH HHS M01 RR000032NCRR NIH HHS M01-RR-00032NCRR NIH HHS UL1 RR029879NCRR NIH HHS UL1RR029879NICHD NIH HHS K12 HD055892NICHD NIH HHS K12HD055892NIDDK NIH HHS P30 DK056336NIDDK NIH HHS P30-DK56336NIMH NIH HHS F31 MH082480NIMH NIH HHS F31MH082480
6 · The paper itself

Abstract

backgroundIn women with schizophrenia, cognition has been shown to be enhanced following administration of hormone therapy or oxytocin. We examined how natural hormonal changes across the menstrual cycle influence cognition in women with schizophrenia. We hypothesized that female patients would perform worse on "female-dominant" tasks (verbal memory/fluency) and better on "male-dominant" tasks (visuospatial) during the early follicular phase (low estradiol and progesterone) compared to midluteal phase (high estradiol and progesterone) in relation to estradiol but not progesterone.

methodsFifty-four women (23 with schizophrenia) completed cognitive assessments and provided blood for sex steroid assays and oxytocin at early follicular (days 2-4) and midluteal (days 20-22) phases. Men were included to verify the expected pattern of sex differences on cognitive tests.

resultsExpected sex differences were observed on "female-dominant" and "male-dominant" tasks (p<0.001), but the magnitude of those differences did not differ between patients and controls (p=0.44). Cognitive performance did not change across the menstrual cycle on "female-dominant" or "male-dominant" tasks in either group. Estradiol and progesterone levels were unrelated to cognitive performance. Oxytocin levels did not change across the menstrual cycle but were positively related to performance on "female-dominant" tasks in female patients only (p<0.05).

conclusionsSex differences in cognitive function are preserved in schizophrenia. Oxytocin levels do not change across the cycle, but relate to enhanced performance on female dominant tests in women. Physiological levels of oxytocin may thus have a more powerful benefit in some cognitive domains than estrogens in schizophrenia.

Indexed as

Schizophrenic PsychologySex CharacteristicsAdolescentAdultAntipsychotic AgentsCognitionFemaleGonadal Steroid HormonesHumansMaleMenstrual CycleNeuropsychological TestsOxytocinPsychotic DisordersSchizophreniaYoung AdultAntipsychotic AgentsGonadal Steroid HormonesOxytocinCognitionEstrogenMenstrual cycleOxytocinSchizophreniaSex differences

Identifiers

PMID25990704
PMCPMC4512858
OpenAlexW1923032238

What OpenQuestion holds

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Registered trials

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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.