Empathy is moderated by genetic background in mice.
Empathy, as originally defined, refers to an emotional experience that is shared among individuals. When discomfort or alarm is detected in another, a variety of behavioral responses can follow, including greater levels of nurturing, consolation or increased vigilance towards a threat. Moreover, cha...
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Format: | Article |
Language: | English |
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Public Library of Science (PLoS)
2009-01-01
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Series: | PLoS ONE |
Online Access: | http://europepmc.org/articles/PMC2633046?pdf=render |
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author | QiLiang Chen Jules B Panksepp Garet P Lahvis |
author_facet | QiLiang Chen Jules B Panksepp Garet P Lahvis |
author_sort | QiLiang Chen |
collection | DOAJ |
description | Empathy, as originally defined, refers to an emotional experience that is shared among individuals. When discomfort or alarm is detected in another, a variety of behavioral responses can follow, including greater levels of nurturing, consolation or increased vigilance towards a threat. Moreover, changes in systemic physiology often accompany the recognition of distressed states in others. Employing a mouse model of cue-conditioned fear, we asked whether exposure to conspecific distress influences how a mouse subsequently responds to environmental cues that predict this distress. We found that mice are responsive to environmental cues that predict social distress, that their heart rate changes when distress vocalizations are emitted from conspecifics, and that genetic background substantially influences the magnitude of these responses. Specifically, during a series of pre-exposure sessions, repeated experiences of object mice that were exposed to a tone-shock (CS-UCS) contingency resulted in heart rate deceleration in subjects from the gregarious C57BL/6J (B6) strain, but not in subjects from the less social BALB/cJ (BALB) strain. Following the pre-exposure sessions, subjects were individually presented with the CS-only for 5 consecutive trials followed by 5 consecutive pairings of the CS with the UCS. Pre-exposure to object distress increased the freezing responses of B6 mice, but not BALB mice, on both the CS-only and the CS-UCS trials. These physiological and behavioral responses of B6 mice to social distress parallel features of human empathy. Our paradigm thus has construct and face validity with contemporary views of empathy, and provides unequivocal evidence for a genetic contribution to the expression of empathic behavior. |
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language | English |
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spelling | doaj.art-55d6d2404dae499ab603d934b1dda7652022-12-21T19:42:26ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-01-0142e438710.1371/journal.pone.0004387Empathy is moderated by genetic background in mice.QiLiang ChenJules B PankseppGaret P LahvisEmpathy, as originally defined, refers to an emotional experience that is shared among individuals. When discomfort or alarm is detected in another, a variety of behavioral responses can follow, including greater levels of nurturing, consolation or increased vigilance towards a threat. Moreover, changes in systemic physiology often accompany the recognition of distressed states in others. Employing a mouse model of cue-conditioned fear, we asked whether exposure to conspecific distress influences how a mouse subsequently responds to environmental cues that predict this distress. We found that mice are responsive to environmental cues that predict social distress, that their heart rate changes when distress vocalizations are emitted from conspecifics, and that genetic background substantially influences the magnitude of these responses. Specifically, during a series of pre-exposure sessions, repeated experiences of object mice that were exposed to a tone-shock (CS-UCS) contingency resulted in heart rate deceleration in subjects from the gregarious C57BL/6J (B6) strain, but not in subjects from the less social BALB/cJ (BALB) strain. Following the pre-exposure sessions, subjects were individually presented with the CS-only for 5 consecutive trials followed by 5 consecutive pairings of the CS with the UCS. Pre-exposure to object distress increased the freezing responses of B6 mice, but not BALB mice, on both the CS-only and the CS-UCS trials. These physiological and behavioral responses of B6 mice to social distress parallel features of human empathy. Our paradigm thus has construct and face validity with contemporary views of empathy, and provides unequivocal evidence for a genetic contribution to the expression of empathic behavior.http://europepmc.org/articles/PMC2633046?pdf=render |
spellingShingle | QiLiang Chen Jules B Panksepp Garet P Lahvis Empathy is moderated by genetic background in mice. PLoS ONE |
title | Empathy is moderated by genetic background in mice. |
title_full | Empathy is moderated by genetic background in mice. |
title_fullStr | Empathy is moderated by genetic background in mice. |
title_full_unstemmed | Empathy is moderated by genetic background in mice. |
title_short | Empathy is moderated by genetic background in mice. |
title_sort | empathy is moderated by genetic background in mice |
url | http://europepmc.org/articles/PMC2633046?pdf=render |
work_keys_str_mv | AT qiliangchen empathyismoderatedbygeneticbackgroundinmice AT julesbpanksepp empathyismoderatedbygeneticbackgroundinmice AT garetplahvis empathyismoderatedbygeneticbackgroundinmice |