Evidence map›Paper›PMID 26965901›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2017

Ancestral Exposure to Stress Generates New Behavioral Traits and a Functional Hemispheric Dominance Shift.

Mirela Ambeskovic, Nasrin Soltanpour, Erin A Falkenberg, Fabiola C R Zucchi, Bryan Kolb, Gerlinde A S Metz

Open access · bronzeAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 41 citations in OpenAlex.

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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 1 institution in 2 countries.

Mirela AmbeskovicCanadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, CanadaT1K 3M4.
Nasrin SoltanpourCanadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, CanadaT1K 3M4.
Erin A FalkenbergCanadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, CanadaT1K 3M4.
Fabiola C R ZucchiCanadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4.
Bryan KolbCanadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, CanadaT1K 3M4.
Gerlinde A S MetzCanadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, CanadaT1K 3M4.
University of Lethbridge · CA

Funding

CIHR 102652
6 · The paper itself

Abstract

In a continuously stressful environment, the effects of recurrent prenatal stress (PS) accumulate across generations and generate new behavioral traits in the absence of genetic variation. Here, we investigated if PS or multigenerational PS across 4 generations differentially affect behavioral traits, laterality, and hemispheric dominance in male and female rats. Using skilled reaching and skilled walking tasks, 3 findings support the formation of new behavioral traits and shifted laterality by multigenerational stress. First, while PS in the F1 generation did not alter paw preference, multigenerational stress in the F4 generation shifted paw preference to favor left-handedness only in males. Second, multigenerational stress impaired skilled reaching and skilled walking movement abilities in males, while improving these abilities in females beyond the levels of controls. Third, the shift toward left-handedness in multigenerationally stressed males was accompanied by increased dendritic complexity and greater spine density in the right parietal cortex. Thus, cumulative multigenerational stress generates sexually dimorphic left-handedness and dominance shift toward the right hemisphere in males. These findings explain the origins of apparently heritable behavioral traits and handedness in the absence of DNA sequence variations while proposing epigenetic mechanisms.

Indexed as

Epigenesis, GeneticAnimalsDendritesDominance, CerebralExtremitiesFemaleInheritance PatternsMaleMotor SkillsParietal LobeRandom AllocationRats, Long-EvansSex CharacteristicsStress, PsychologicalWalkingbehavioral lateralitybrain dominancedendritic morphologydexterityfine motor skillsGolgi–Cox staininghandednessmultigenerational prenatal stressneuroplasticity, parietal cortex (Par 1)sex differencessexual dimorphismspine density

Identifiers

PMID26965901
PMCPMC5963819
OpenAlexW2294499230

What OpenQuestion holds

Textmetadata
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.