Evidence map›Paper›PMID 31480979›Full record

Trial reportProceedings. Biological sciences2019

Does testosterone impair men's cognitive empathy? Evidence from two large-scale randomized controlled trials.

Amos Nadler, Colin F Camerer, David T Zava, Triana L Ortiz, Neil V Watson, Justin M Carré, Gideon Nave

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Proceedings. Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

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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

7 authors.

Amos NadlerBFI, Toronto, Ontario, Canada.
Colin F CamererDepartment of the Humanities and Social Sciences, California Institute of Technology, 1200 E California Boulevard, MC 228-77, Pasadena, CA 91125, USA.
David T ZavaZRT Laboratory, 8605 SW Creekside Place, Beaverton, OR 97008, USA.
Triana L OrtizDepartment of Psychology, Nipissing University, 100 College Drive, North Bay, Ontario, Canada P1B 8L7.
Neil V WatsonDepartment of Psychology, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6.
Justin M CarréDepartment of Psychology, Nipissing University, 100 College Drive, North Bay, Ontario, Canada P1B 8L7.
Gideon NaveMarketing Department, The Wharton School of the University of Pennsylvania, 3730 Walnut Street, Philadelphia, PA 19104, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The capacity to infer others' mental states (known as 'mind reading' and 'cognitive empathy') is essential for social interactions across species, and its impairment characterizes psychopathological conditions such as autism spectrum disorder and schizophrenia. Previous studies reported that testosterone administration impaired cognitive empathy in healthy humans, and that a putative biomarker of prenatal testosterone exposure (finger digit ratios) moderated the effect. However, empirical support for the relationship has relied on small sample studies with mixed evidence. We investigate the reliability and generalizability of the relationship in two large-scale double-blind placebo-controlled experiments in young men (n = 243 and n = 400), using two different testosterone administration protocols. We find no evidence that cognitive empathy is impaired by testosterone administration or associated with digit ratios. With an unprecedented combined sample size, these results counter current theories and previous high-profile reports, and demonstrate that previous investigations of this topic have been statistically underpowered.

Indexed as

AdultCognitionDouble-Blind MethodEmotionsEmpathyFacial ExpressionHumansInterpersonal RelationsMaleSex CharacteristicsTestosteroneTestosteronecognitive empathymind readingpharmacologyprenatal primingsteroid hormonestestosterone

Identifiers

PMID31480979
PMCPMC6742992

What OpenQuestion holds

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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.