scholarly journals Synchronous Caregiving from Birth to Adulthood Tunes Humans’ Social Brain

2020 ◽  
Author(s):  
Adi Ulmer-Yaniv ◽  
Roy Salomon ◽  
Shani Waidergoren ◽  
Ortal Shimon-Raz ◽  
Amir Djalovski ◽  
...  
Keyword(s):  
Brain Regions ◽  
Empathic Accuracy ◽  
Multivariate Techniques ◽  
Neural Basis ◽  
Social Brain ◽  
Temporal Pole ◽  
Parental Rearing ◽  
Bodily Contact ◽  
Human Neonates ◽  
Parent Child

AbstractMammalian young are born with immature brains and rely on the mother’s body and caregiving behavior for maturation of neurobiological systems that sustain adult sociality. However, the parent-child precursors of humans’ social brain are unknown. We followed human neonates, who received or were deprived of maternal bodily contact, to adulthood, repeatedly measuring mother-child interactive synchrony. We tested the neural basis of empathic accuracy in adulthood and utilized multivariate techniques to distinguish brain regions sensitive to others’ distinct emotions from those globally activated by the vicarious stance. A network comprising the amygdala, insula, and temporal pole underpinned empathic accuracy, which was shaped by mother-child synchrony across development. Synchronous experiences with mother or father in infancy impacted adults’ neural empathy, highlighting the benefits of humans’ bi-parental rearing. Findings demonstrate the centrality of synchronous caregiving across development for tuning humans’ social brain.

scholarly journals Synchronous caregiving from birth to adulthood tunes humans’ social brain

2021 ◽  
Vol 118 (14) ◽  
pp. e2012900118
Author(s):  
Adi Ulmer Yaniv ◽  
Roy Salomon ◽  
Shani Waidergoren ◽  
Ortal Shimon-Raz ◽  
Amir Djalovski ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Brain Regions ◽  
Adult Brain ◽  
Multivariate Techniques ◽  
Affective States ◽  
Long Term Effects ◽  
Social Brain ◽  
Skin Contact ◽  
Human Adults ◽  
Social Synchrony

Mammalian young are born with immature brain and rely on the mother’s body and caregiving behavior for maturation of neurobiological systems that sustain adult sociality. While research in animal models indicated the long-term effects of maternal contact and caregiving on the adult brain, little is known about the effects of maternal–newborn contact and parenting behavior on social brain functioning in human adults. We followed human neonates, including premature infants who initially lacked or received maternal–newborn skin-to-skin contact and full-term controls, from birth to adulthood, repeatedly observing mother–child social synchrony at key developmental nodes. We tested the brain basis of affect-specific empathy in young adulthood and utilized multivariate techniques to distinguish brain regions sensitive to others’ distinct emotions from those globally activated by the empathy task. The amygdala, insula, temporal pole (TP), and ventromedial prefrontal cortex (VMPFC) showed high sensitivity to others’ distinct emotions. Provision of maternal–newborn contact enhanced social synchrony across development from infancy and up until adulthood. The experience of synchrony, in turn, predicted the brain’s sensitivity to emotion-specific empathy in the amygdala and insula, core structures of the social brain. Social synchrony linked with greater empathic understanding in adolescence, which was longitudinally associated with higher neural sensitivity to emotion-specific empathy in TP and VMPFC. Findings demonstrate the centrality of synchronous caregiving, by which infants practice the detection and sharing of others’ affective states, for tuning the human social brain, particularly in regions implicated in salience detection, interoception, and mentalization that underpin affect sharing and human attachment.

scholarly journals Neuroimaging studies exploring the neural basis of social isolation

2021 ◽  
Vol 30 ◽  
Author(s):  
Niccolò Zovetti ◽  
Maria Gloria Rossetti ◽  
Cinzia Perlini ◽  
Paolo Brambilla ◽  
Marcella Bellani
Keyword(s):  
Social Isolation ◽  
Brain Regions ◽  
Brain Network ◽  
Neural Basis ◽  
Social Brain ◽  
Temporal Lobes ◽  
The Social ◽  
Neural Underpinnings ◽  
Parietal Cortices ◽  
Posterior Superior Temporal Sulcus

Abstract According to the social brain hypothesis, the human brain includes a network designed for the processing of social information. This network includes several brain regions that elaborate social cues, interactions and contexts, i.e. prefrontal paracingulate and parietal cortices, amygdala, temporal lobes and the posterior superior temporal sulcus. While current literature suggests the importance of this network from both a psychological and evolutionary perspective, little is known about its neurobiological bases. Specifically, only a paucity of studies explored the neural underpinnings of constructs that are ascribed to the social brain network functioning, i.e. objective social isolation and perceived loneliness. As such, this review aimed to overview neuroimaging studies that investigated social isolation in healthy subjects. Social isolation correlated with both structural and functional alterations within the social brain network and in other regions that seem to support mentalising and social processes (i.e. hippocampus, insula, ventral striatum and cerebellum). However, results are mixed possibly due to the heterogeneity of methods and study design. Future neuroimaging studies with longitudinal designs are needed to measure the effect of social isolation in experimental v. control groups and to explore its relationship with perceived loneliness, ultimately helping to clarify the neural correlates of the social brain.

scholarly journals Gray-Matter Expansion of Social Brain Networks in Individuals High in Public Self-Consciousness

2021 ◽  
Vol 11 (3) ◽  
pp. 374
Author(s):  
Tomoyo Morita ◽  
Minoru Asada ◽  
Eiichi Naito
Keyword(s):  
Gray Matter ◽  
Structural Changes ◽  
Gray Matter Volume ◽  
Brain Networks ◽  
Japanese Version ◽  
Brain Regions ◽  
The Self ◽  
Social Brain ◽  
Default Mode ◽  
Public Self Consciousness

Self-consciousness is a personality trait associated with an individual’s concern regarding observable (public) and unobservable (private) aspects of self. Prompted by previous functional magnetic resonance imaging (MRI) studies, we examined possible gray-matter expansions in emotion-related and default mode networks in individuals with higher public or private self-consciousness. One hundred healthy young adults answered the Japanese version of the Self-Consciousness Scale (SCS) questionnaire and underwent structural MRI. A voxel-based morphometry analysis revealed that individuals scoring higher on the public SCS showed expansions of gray matter in the emotion-related regions of the cingulate and insular cortices and in the default mode network of the precuneus and medial prefrontal cortex. In addition, these gray-matter expansions were particularly related to the trait of “concern about being evaluated by others”, which was one of the subfactors constituting public self-consciousness. Conversely, no relationship was observed between gray-matter volume in any brain regions and the private SCS scores. This is the first study showing that the personal trait of concern regarding public aspects of the self may cause long-term substantial structural changes in social brain networks.

scholarly journals Dissecting the midlife crisis: disentangling social, personality and demographic determinants in social brain anatomy

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Hannah Kiesow ◽  
Lucina Q. Uddin ◽  
Boris C. Bernhardt ◽  
Joseph Kable ◽  
Danilo Bzdok
Keyword(s):  
Brain Regions ◽  
Interindividual Variation ◽  
Brain Morphology ◽  
Brain Anatomy ◽  
Leadership Roles ◽  
Social Brain ◽  
Aging Parents ◽  
Health Satisfaction ◽  
Midlife Transitions ◽  
Fully Bayesian

AbstractIn any stage of life, humans crave connection with other people. In midlife, transitions in social networks can relate to new leadership roles at work or becoming a caregiver for aging parents. Previous neuroimaging studies have pinpointed the medial prefrontal cortex (mPFC) to undergo structural remodelling during midlife. Social behavior, personality predisposition, and demographic profile all have intimate links to the mPFC according in largely disconnected literatures. Here, we explicitly estimated their unique associations with brain structure using a fully Bayesian framework. We weighed against each other a rich collection of 40 UK Biobank traits with their interindividual variation in social brain morphology in ~10,000 middle-aged participants. Household size and daily routines showed several of the largest effects in explaining variation in social brain regions. We also revealed male-biased effects in the dorsal mPFC and amygdala for job income, and a female-biased effect in the ventral mPFC for health satisfaction.

scholarly journals A nested cortical hierarchy of neural states underlies event segmentation in the human brain

2021 ◽  
Author(s):  
Linda Geerligs ◽  
Marcel van Gerven ◽  
Karen L. Campbell ◽  
Umut Güçlü
Keyword(s):  
Brain Regions ◽  
Data Driven ◽  
Fundamental Aspect ◽  
Segmentation Method ◽  
Discrete Events ◽  
Event Segmentation ◽  
Temporal Pole ◽  
Cortical Hierarchy ◽  
State Boundaries ◽  
Anterior Temporal Pole

AbstractA fundamental aspect of human experience is that it is segmented into discrete events. This may be underpinned by transitions between distinct neural states. Using an innovative data-driven state segmentation method, we investigate how neural states are organized across the cortical hierarchy and where in cortex neural state and perceived event boundaries overlap. Our results show that neural state boundaries are organized in a temporal cortical hierarchy, with short states in primary sensory regions and long states in anterior temporal pole and lateral and medial prefrontal cortex. Neural state boundaries overlap with event boundaries across large parts of this hierarchy. State boundaries are shared within and between groups of brain regions that resemble well known functional networks, such as the default mode network that fractionates into two subnetworks – one fast, one slow. Together these findings suggest that a nested cortical hierarchy of neural states forms the basis of event segmentation.

Sickness and the social brain: How the immune system regulates behavior across species

2021 ◽  
Author(s):  
Benjamin A. Devlin ◽  
Caroline J. Smith ◽  
Staci D. Bilbo
Keyword(s):  
Immune System ◽  
Social Behavior ◽  
Brain Regions ◽  
Behavior Changes ◽  
Social Brain ◽  
Evolutionary Origins ◽  
Immune Mediators ◽  
The Social ◽  
Sickness Behaviors ◽  
The Brain

Many instances of sickness critically involve the immune system. The immune system talks to the brain in a bi-directional loop. This discourse affords the immune system immense control, such that it can influence behavior and optimize recovery from illness. These behavioral responses to infection are called sickness behaviors and can manifest in many ways, including changes in mood, motivation, or energy. Fascinatingly, most of these changes are conserved across species, and most organisms demonstrate some form of sickness behaviors. One of the most interesting sickness behaviors, and not immediately obvious, is altered sociability. Here, we discuss how the immune system impacts social behavior, by examining the brain regions and immune mediators involved in this process. We first outline how social behavior changes in response to infection in various species. Next, we explore which brain regions control social behavior and their evolutionary origins. Finally, we describe which immune mediators establish the link between illness and social behavior, in the context of both normal development and infection. Overall, we hope to make clear the striking similarities between the mechanisms that facilitate changes in sociability in derived and ancestral vertebrate, as well as invertebrate, species.

The Structural Language Network

2017 ◽  
Author(s):  
Angela D. Friederici ◽  
Noam Chomsky
Keyword(s):  
White Matter ◽  
Language Processing ◽  
Sentence Processing ◽  
Information Transfer ◽  
Right Hemisphere ◽  
Brain Regions ◽  
Neural Basis ◽  
Fiber Tracts ◽  
White Matter Fiber Tracts ◽  
The Right

An adequate description of the neural basis of language processing must consider the entire network both with respect to its structural white matter connections and the functional connectivities between the different brain regions as the information has to be sent between different language-related regions distributed across the temporal and frontal cortex. This chapter discusses the white matter fiber bundles that connect the language-relevant regions. The chapter is broken into three sections. In the first, we look at the white matter fiber tracts connecting the language-relevant regions in the frontal and temporal cortices; in the second, the ventral and dorsal pathways in the right hemisphere that connect temporal and frontal regions; and finally in the third, the two syntax-relevant and (at least) one semantic-relevant neuroanatomically-defined networks that sentence processing is based on. From this discussion, it becomes clear that online language processing requires information transfer via the long-range white matter fiber pathways that connect the language-relevant brain regions within each hemisphere and between hemispheres.

scholarly journals Understanding the Effects of General Anesthetics on Cortical Network Activity Using Ex Vivo Preparations

2019 ◽  
Vol 130 (6) ◽  
pp. 1049-1063 ◽  
Author(s):  
Logan J. Voss ◽  
Paul S. García ◽  
Harald Hentschke ◽  
Matthew I. Banks
Keyword(s):  
Molecular Mechanisms ◽  
Ex Vivo ◽  
Brain Slices ◽  
Brain Regions ◽  
Cortical Network ◽  
Network Activity ◽  
Common Mechanism ◽  
General Anesthetics ◽  
Neural Basis

Abstract General anesthetics have been used to ablate consciousness during surgery for more than 150 yr. Despite significant advances in our understanding of their molecular-level pharmacologic effects, comparatively little is known about how anesthetics alter brain dynamics to cause unconsciousness. Consequently, while anesthesia practice is now routine and safe, there are many vagaries that remain unexplained. In this paper, the authors review the evidence that cortical network activity is particularly sensitive to general anesthetics, and suggest that disruption to communication in, and/or among, cortical brain regions is a common mechanism of anesthesia that ultimately produces loss of consciousness. The authors review data from acute brain slices and organotypic cultures showing that anesthetics with differing molecular mechanisms of action share in common the ability to impair neurophysiologic communication. While many questions remain, together, ex vivo and in vivo investigations suggest that a unified understanding of both clinical anesthesia and the neural basis of consciousness is attainable.

scholarly journals The neuroscience of Romeo and Juliet : an fMRI study of acting

2019 ◽  
Vol 6 (3) ◽  
pp. 181908 ◽  
Author(s):  
Steven Brown ◽  
Peter Cockett ◽  
Ye Yuan
Keyword(s):  
Brain Activity ◽  
Role Playing ◽  
Brain Regions ◽  
Multiple Roles ◽  
First Person ◽  
Neural Basis ◽  
Romeo And Juliet ◽  
Loss Of Self ◽  
Fmri Study ◽  
Mri Study

The current study represents a first attempt at examining the neural basis of dramatic acting. While all people play multiple roles in daily life—for example, ‘spouse' or ‘employee'—these roles are all facets of the ‘self' and thus of the first-person (1P) perspective. Compared to such everyday role playing, actors are required to portray other people and to adopt their gestures, emotions and behaviours. Consequently, actors must think and behave not as themselves but as the characters they are pretending to be. In other words, they have to assume a ‘fictional first-person' (Fic1P) perspective. In this functional MRI study, we sought to identify brain regions preferentially activated when actors adopt a Fic1P perspective during dramatic role playing. In the scanner, university-trained actors responded to a series of hypothetical questions from either their own 1P perspective or from that of Romeo (male participants) or Juliet (female participants) from Shakespeare's drama. Compared to responding as oneself, responding in character produced global reductions in brain activity and, particularly, deactivations in the cortical midline network of the frontal lobe, including the dorsomedial and ventromedial prefrontal cortices. Thus, portraying a character through acting seems to be a deactivation-driven process, perhaps representing a ‘loss of self'.

scholarly journals The social brain in female autism: a structural imaging study of twins

2020 ◽  
Vol 15 (4) ◽  
pp. 423-436
Author(s):  
Élodie Cauvet ◽  
Annelies van’t Westeinde ◽  
Roberto Toro ◽  
Ralf Kuja-Halkola ◽  
Janina Neufeld ◽  
...  
Keyword(s):  
Sex Differences ◽  
Social Cognition ◽  
Brain Structure ◽  
Imaging Study ◽  
Autistic Traits ◽  
Brain Regions ◽  
Autism Spectrum ◽  
Social Brain ◽  
Twin Design ◽  
The Social

Abstract A female advantage in social cognition (SoC) might contribute to women’s underrepresentation in autism spectrum disorder (ASD). The latter could be underpinned by sex differences in social brain structure. This study investigated the relationship between structural social brain networks and SoC in females and males in relation to ASD and autistic traits in twins. We used a co-twin design in 77 twin pairs (39 female) aged 12.5 to 31.0 years. Twin pairs were discordant or concordant for ASD or autistic traits, discordant or concordant for other neurodevelopmental disorders or concordant for neurotypical development. They underwent structural magnetic resonance imaging and were assessed for SoC using the naturalistic Movie for the Assessment of Social Cognition. Autistic traits predicted reduced SoC capacities predominantly in male twins, despite a comparable extent of autistic traits in each sex, although the association between SoC and autistic traits did not differ significantly between the sexes. Consistently, within-pair associations between SoC and social brain structure revealed that lower SoC ability was associated with increased cortical thickness of several brain regions, particularly in males. Our findings confirm the notion that sex differences in SoC in association with ASD are underpinned by sex differences in brain structure.

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