The benefits of social buffering are maintained regardless of the stress level of the subject rat and enhanced by more conspecifics

Kiyokawa, Yasushi; Kawai, Kazuma; Takeuchi, Yukari

doi:10.1016/j.physbeh.2018.05.027

Cited by 33 publications

(14 citation statements)

References 54 publications

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“…In this case, the individual reduction in average SCRs to aversive sounds in the social treatment groups should augment with increasing trait and state anxiety scores. By contrast, the results of a recent animal study [31] predict no relationship between the social modulation effect and individual differences in trait and state anxiety.…”

Section: Introductionmentioning

confidence: 71%

“…were found to correlate with a stronger reduction of neural and behavioral anxiety responses in participants with high trait anxiety [20,21]. However, in contrast to these findings in humans, a recent study on rodents has shown similar social modulation effects in rats that were conditioned to a low, medium and highly stressful stimulus, indicating that the intensity of social modulation of stress was independent of the stress status of the animals [31].…”

Section: Introductionmentioning

confidence: 89%

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The mere physical presence of another person reduces human autonomic responses to aversive sounds

Bell

Fackler

et al. 2020

Proc. R. Soc. B.

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Social animals show reduced physiological responses to aversive events if a conspecific is physically present. Although humans are innately social, it is unclear whether the mere physical presence of another person is sufficient to reduce human autonomic responses to aversive events. In our study, participants experienced aversive and neutral sounds alone (alone treatment) or with an unknown person that was physically present without providing active support. The present person was a member of the participants' ethnical group (ingroup treatment) or a different ethnical group (outgroup treatment), inspired by studies that have found an impact of similarity on social modulation effects. We measured skin conductance responses (SCRs) and collected subjective similarity and affect ratings. The mere presence of an ingroup or outgroup person significantly reduced SCRs to the aversive sounds compared with the alone condition, in particular in participants with high situational anxiety. Moreover, the effect was stronger if participants perceived the ingroup or outgroup person as dissimilar to themselves. Our results indicate that the mere presence of another person was sufficient to diminish autonomic responses to aversive events in humans, and thus verify the translational validity of basic social modulation effects across different species.

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Section: Introductionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 89%

The mere physical presence of another person reduces human autonomic responses to aversive sounds

Bell

Fackler

et al. 2020

Proc. R. Soc. B.

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“…Social species can acquire information about their environment through conspecific interactions. The transmission and buffering of stress responses between conspecifics are broadly observed and highly conserved phenomena (Gunnar et al, 2015;de Waal and Preston, 2017;Debiec and Olsson, 2017;Oliveira and Faustino, 2017;Kiyokawa et al, 2018;Monfils and Agee, 2019). Stress can trigger enduring changes in the ability of synapses to exhibit synaptic plasticity, resulting in metaplasticity (Kim and Diamond, 2002;Huang et al, 2005;Schmidt et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Social Transmission and Buffering of Hippocampal Metaplasticity after Stress in Mice

Lee

Liu

2020

J. Neurosci.

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In social animals, the behavioral and hormonal responses to stress can be transmitted from one individual to another through a social transmission process, and, conversely, social support ameliorates stress responses, a phenomenon referred to as social buffering. Metaplasticity represents activity-dependent synaptic changes that modulate the ability to elicit subsequent synaptic plasticity. Authentic stress can induce hippocampal metaplasticity, but whether transmitted stress has the same ability remains unknown. Here, using an acute restraint-tailshock stress paradigm, we report that both authentic and transmitted stress in adult male mice trigger metaplastic facilitation of long-term depression (LTD) induction at hippocampal CA1 synapses. Using LTD as a readout of persistent synaptic consequences of stress, our findings demonstrate that, in a malemale dyad, stress transmission happens in nearly half of naive partners and stress buffering occurs in approximately half of male stressed mice that closely interact with naive partners. By using a social-confrontation tube test to assess the dominantsubordinate relationship in a male-male dyad, we found that stressed subordinate mice are not buffered by naive dominant partners and that stress transmission is exhibited in ;60% of dominant naive partners. Furthermore, the appearance of stress transmission correlates with more time spent in sniffing the anogenital area of stressed mice, and the appearance of stress buffering correlates with more time engaged in allogrooming from naive partners. Chemical ablation of the olfactory epithelium with dichlobenil or physical separation between social contacts diminishes stress transmission. Together, our data demonstrate that transmitted stress can elicit metaplastic facilitation of LTD induction as authentic stress.

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“…Interestingly, social buffering is more robust between familiar rats [ 20 ] and animals of the same strain [ 39 ]. Although sex differences in social buffering have not been thoroughly explored [ 3 , 40 ], it is possible that females are more effective than males at buffering fear in familiar conspecifics which might influence the reciprocal social behaviors and decision-making to give way to more social exploration.…”

Section: Discussionmentioning

confidence: 99%

Familiarity modulates social approach toward stressed conspecifics in female rats

et al. 2018

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Familiarity between conspecifics may influence how social affective cues shape social behaviors. In a social affective preference test, experimental rats, when given the choice to explore an unfamiliar stressed or a naive adult, will avoid interaction with a stressed conspecific. To determine if familiarity would influence social interactions with stressed conspecifics, male and female test rats underwent 2 social affective preference tests in isosexual triads where an experimental rat was presented with a naïve and a stressed target conspecific who were either familiar (cagemate) or unfamiliar. Male and female experimental rats avoided stressed unfamiliar conspecifics. However, experimental female rats demonstrated a preference to interact with their stressed, familiar cagemates. Male and female rats exhibited more self-grooming and immobility behavior in the presence of stressed conspecifics, which may indicate emotion contagion. These findings suggest a sex-specific role of familiarity in social approach and avoidance, and warrant further mechanistic exploration.

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The benefits of social buffering are maintained regardless of the stress level of the subject rat and enhanced by more conspecifics

Cited by 33 publications

References 54 publications

The mere physical presence of another person reduces human autonomic responses to aversive sounds

The mere physical presence of another person reduces human autonomic responses to aversive sounds

Social Transmission and Buffering of Hippocampal Metaplasticity after Stress in Mice

Familiarity modulates social approach toward stressed conspecifics in female rats

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