Towards a unified theory of emotional contagion in rodents-A meta-analysis

Julen Hernandez-Lallement; Paula Gómez-Sotres; Maria Carrillo

doi:10.1016/j.neubiorev.2020.09.010

Towards a unified theory of emotional contagion in rodents-A meta-analysis

Julen Hernandez-Lallement, Paula Gómez-Sotres, Maria Carrillo

Netherlands Institute for Neuroscience (NIN)

Research output: Contribution to journal/periodical › Article › Scientific › peer-review

109 Downloads (Pure)

Abstract

Here we leverage 80 years of emotional contagion research in rodents and perform the first meta-analysis on this topic. Using 457 effect sizes, we show that, while both rats and mice are capable of emotional contagion, there are differences in how various factors modulate empathy in these species: 1) only mice show strain-specific differences in emotional contagion response; 2) although rats and mice have equivalent contagion response to familiar and unfamiliar individuals, our results show that familiarity length is negatively correlated with level of contagion in rats only; 3) prior experience with emotional stimuli almost doubles fear contagion response in rats while no changes are detected in pre-exposed mice; 4) both mice and rats tested alone show comparable reduced contagion compared to animals tested in a group; 5) emotional contagion is reduced in animals from both species missing one sensory modality compared to situations where all sensory modalities are recruited during emotional contagion. Lastly, we report similar patterns of brain activation during emotional contagion in rats and mice.

Original language	English
Journal	Neuroscience and Biobehavioral Reviews
DOIs	https://doi.org/10.1016/j.neubiorev.2020.09.010
Publication status	E-pub ahead of print - 2021

Access to Document

10.1016/j.neubiorev.2020.09.010

HernandezNBRFinal published version, 6.13 MBLicence: CC BY

Fingerprint Dive into the research topics of 'Towards a unified theory of emotional contagion in rodents-A meta-analysis'. Together they form a unique fingerprint.

Cite this

@article{6889bfb22e59488e9fde05782268acbf,

title = "Towards a unified theory of emotional contagion in rodents-A meta-analysis",

abstract = "Here we leverage 80 years of emotional contagion research in rodents and perform the first meta-analysis on this topic. Using 457 effect sizes, we show that, while both rats and mice are capable of emotional contagion, there are differences in how various factors modulate empathy in these species: 1) only mice show strain-specific differences in emotional contagion response; 2) although rats and mice have equivalent contagion response to familiar and unfamiliar individuals, our results show that familiarity length is negatively correlated with level of contagion in rats only; 3) prior experience with emotional stimuli almost doubles fear contagion response in rats while no changes are detected in pre-exposed mice; 4) both mice and rats tested alone show comparable reduced contagion compared to animals tested in a group; 5) emotional contagion is reduced in animals from both species missing one sensory modality compared to situations where all sensory modalities are recruited during emotional contagion. Lastly, we report similar patterns of brain activation during emotional contagion in rats and mice.",

author = "Julen Hernandez-Lallement and Paula G{\'o}mez-Sotres and Maria Carrillo",

note = "Copyright {\textcopyright} 2020. Published by Elsevier Ltd.",

year = "2021",

doi = "10.1016/j.neubiorev.2020.09.010",

language = "English",

journal = "Neuroscience and Biobehavioral Reviews",

issn = "0149-7634",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Towards a unified theory of emotional contagion in rodents-A meta-analysis

AU - Hernandez-Lallement, Julen

AU - Gómez-Sotres, Paula

AU - Carrillo, Maria

PY - 2021

Y1 - 2021

N2 - Here we leverage 80 years of emotional contagion research in rodents and perform the first meta-analysis on this topic. Using 457 effect sizes, we show that, while both rats and mice are capable of emotional contagion, there are differences in how various factors modulate empathy in these species: 1) only mice show strain-specific differences in emotional contagion response; 2) although rats and mice have equivalent contagion response to familiar and unfamiliar individuals, our results show that familiarity length is negatively correlated with level of contagion in rats only; 3) prior experience with emotional stimuli almost doubles fear contagion response in rats while no changes are detected in pre-exposed mice; 4) both mice and rats tested alone show comparable reduced contagion compared to animals tested in a group; 5) emotional contagion is reduced in animals from both species missing one sensory modality compared to situations where all sensory modalities are recruited during emotional contagion. Lastly, we report similar patterns of brain activation during emotional contagion in rats and mice.

AB - Here we leverage 80 years of emotional contagion research in rodents and perform the first meta-analysis on this topic. Using 457 effect sizes, we show that, while both rats and mice are capable of emotional contagion, there are differences in how various factors modulate empathy in these species: 1) only mice show strain-specific differences in emotional contagion response; 2) although rats and mice have equivalent contagion response to familiar and unfamiliar individuals, our results show that familiarity length is negatively correlated with level of contagion in rats only; 3) prior experience with emotional stimuli almost doubles fear contagion response in rats while no changes are detected in pre-exposed mice; 4) both mice and rats tested alone show comparable reduced contagion compared to animals tested in a group; 5) emotional contagion is reduced in animals from both species missing one sensory modality compared to situations where all sensory modalities are recruited during emotional contagion. Lastly, we report similar patterns of brain activation during emotional contagion in rats and mice.

U2 - 10.1016/j.neubiorev.2020.09.010

DO - 10.1016/j.neubiorev.2020.09.010

M3 - Article

C2 - 33022297

JO - Neuroscience and Biobehavioral Reviews

JF - Neuroscience and Biobehavioral Reviews

SN - 0149-7634

ER -