scholarly journals Leadership and tempo perturbation affect coordination in medium-sized groups

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bahar Tunçgenç ◽  
Eoin Travers ◽  
Merle T. Fairhurst
Keyword(s):  
Social Cohesion ◽  
Social Bonding ◽  
Coordination Dynamics ◽  
Dyadic Interactions ◽  
Human Group ◽  
Group Behaviour ◽  
Marching Bands ◽  
Naturalistic Setting ◽  
Group Members ◽  
Sensorimotor Coupling

AbstractIn marching bands, sports, dance and virtually all human group behaviour, we coordinate our actions with others. Coordinating actions in time and space can act as a social glue, facilitating bonding among people. However, much of our understanding about coordination dynamics is based on research into dyadic interactions. Little is known about the nature of the sensorimotor underpinnings and social bonding outcomes of coordination in medium-sized groups—the type of groups, in which most everyday teamwork takes place. In this study, we explored how the presence of a leader and an unexpected perturbation influence coordination and cohesion in a naturalistic setting. In groups of seven, participants were instructed to walk in time to an auditory pacing signal. We found that the presence of a reliable leader enhanced coordination with the target tempo, which was disrupted when the leader abruptly changed their movement tempo. This effect was not observed on coordination with the group members. Moreover, participants’ perceptions of being a follower and group cooperativeness increased in the presence of a leader. This study extends our knowledge about coordination beyond previous work on dyads. We discuss our results in light of sensorimotor coupling and social cohesion theories of coordination in groups.

scholarly journals An Analysis of Heterogeneity in German Speaking Birdwatchers Reveals Three Distinct Clusters and Gender Differences

Birds ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 250-260
Author(s):  
Christoph Randler
Keyword(s):  
Cluster Analysis ◽  
Optimal Solution ◽  
Social Bonding ◽  
Cluster Solution ◽  
Novice Group ◽  
Wide Range ◽  
German Speaking ◽  
Group Members ◽  
Bird Group ◽  
And Gender

The purpose of this study was to segment birdwatchers into clusters. Members from a wide range of bird related organizations, from highly specialized birders as well as Facebook bird group members were studied to provide a diverse dataset (n = 2766; 50.5% men). Birding specialization was measured with a battery of questionnaires. Birding specialization encompassed the three constructs of skill/competence, behavior, personal and behavioral commitment. Additionally, involvement, measured by centrality to lifestyle, attraction, social bonding, and identity, was used. The NbClust analyses showed that a three-cluster solution was the optimal solution. Then, k-means cluster analysis was applied on three groups: casual/novice, intermediate, and specialist/advanced birdwatchers. More men than women were in the specialist/advanced group and more women than men in the casual/novice group. As a conclusion, this study confirms a three-cluster solution for segmenting German birdwatchers based on a large and diverse sample and a broad conceptualization of the construct birding specialization. These data can be used to address different target audiences (novices, advanced birders) with different programs, e.g., in nature conservation.

Music and dance are two parallel routes for creating social cohesion

2021 ◽  
Vol 44 ◽  
Author(s):  
Steven Brown
Keyword(s):  
Social Cohesion ◽  
Social Bonding

Abstract Savage et al. do an excellent job of making the case for social bonding in general, but do a less good job of distinguishing the manners by which dance and music achieve this. It is important to see dance and music as two parallel and interactive mechanisms that employ the “group body” and “group voice,” respectively, in engendering social cohesion.

Dominance Hierarchies in Psychotherapy Groups

1986 ◽  
Vol 148 (6) ◽  
pp. 625-631 ◽  
Author(s):  
James L. Kennedy ◽  
K. Roy MacKenzie
Keyword(s):  
Dominance Hierarchy ◽  
Survival Strategies ◽  
Recent Theory ◽  
Human Group ◽  
Dominance Hierarchies ◽  
Diagnostic Categories ◽  
Group Behaviour ◽  
Adaptive Processes ◽  
Psychotherapy Groups ◽  
Biochemical Mechanisms

For a social group to develop, two opposing adaptive processes must be reconciled—mechanisms for developing cohesion and mechanisms for establishing a dominance hierarchy. The formation of stable groups provides significant evolutionary advantages: a source of protection, increased reproductive opportunities, and a larger store of survival strategies than any one individual could encompass. A recent theory of human evolution (Reynolds, 1981) stresses that social behaviour would seem to be the most likely single cause of the origin of human intelligence, if one origin must be isolated. Current interest in the biological basis of behaviour has been focused particularly on specific diagnostic categories and biochemical mechanisms. This paper reviews a different research tradition, based on ethological principles, and applies the findings to an understanding of human group behaviour.

Pitch Syntax as an Evolutionary Prelingual Innovation

2020 ◽  
pp. 102986492094155
Author(s):  
Piotr Podlipniak
Keyword(s):  
Implicit Learning ◽  
Social Cohesion ◽  
Social Bonding ◽  
Syntactic Processing ◽  
Mutual Trust ◽  
Hierarchical Systems ◽  
Cognitive Mechanisms ◽  
Adaptive Function ◽  
Musical Pitch ◽  
Pitch Structure

Pitch syntax is an important part of musical syntax. It is a complex hierarchical system that involves generative production and perception based on pitch. Because hierarchical systems are also present in language grammar, the processing of a pitch hierarchy is predominantly explained by the activity of cognitive mechanisms that are not solely specific to music. However, in contrast to the processing of language grammar, which is mainly cognitive in nature, the processing of pitch syntax includes subtle emotional sensations that are often described in terms of tension and resolution or instability and stability. This difference suggests that the very nature of pitch syntax may be evolutionarily older than grammar in language, and has served another adaptive function. The aim of this paper is to indicate that the recognition of pitch structure may be a separate ability, rather than merely being part of general syntactic processing. It is also proposed that pitch syntax has evolved as a specific tool for social bonding in which subtle emotions of tension and resolution are indications of mutual trust. From this perspective, it is considered that musical pitch started to act as a medium of communication by the means of spectral synchronization between the brains of hominins. Pitch syntax facilitated spectral synchronization between performers of a well-established, enduring, communal ritual and in this way increased social cohesion. This process led to the evolution of new cortico-subcortical pathways that enabled the implicit learning of pitch hierarchy and the intuitive use of pitch structure in music before language, as we know it now, began.

scholarly journals Development of a Cohesion Questionnaire for Youth: The Youth Sport Environment Questionnaire

2009 ◽  
Vol 31 (3) ◽  
pp. 390-408 ◽  
Author(s):  
Mark Eys ◽  
Todd Loughead ◽  
Steven R. Bray ◽  
Albert V. Carron
Keyword(s):  
Social Cohesion ◽  
Youth Sport ◽  
Future Research ◽  
Phase 3 ◽  
Research Directions ◽  
Confirmatory Factor Analyses ◽  
Confirmatory Factor ◽  
Group Members ◽  
Future Research Directions ◽  
Youth Perceptions

The purpose of the current study was to initiate the development of a psychometrically sound measure of cohesion for youth sport groups. A series of projects were undertaken in a four-phase research program. The initial phase was designed to garner an understanding of how youth sport group members perceived the concept of cohesion through focus groups (n = 56), open-ended questionnaires (n = 280), and a literature review. In Phase 2, information from the initial projects was used in the development of 142 potential items and content validity was assessed. In Phase 3, 227 participants completed a revised 87-item questionnaire. Principal components analyses further reduced the number of items to 17 and suggested a two-factor structure (i.e., task and social cohesion dimensions). Finally, support for the factorial validity of the resultant questionnaire was provided through confirmatory factor analyses with an independent sample (n = 352) in Phase 4. The final version of the questionnaire contains 16 items that assess task and social cohesion in addition to 2 negatively worded spurious items. Specific issues related to assessing youth perceptions of cohesion are discussed and future research directions are suggested.

scholarly journals The ice-breaker effect: singing mediates fast social bonding

2015 ◽  
Vol 2 (10) ◽  
pp. 150221 ◽  
Author(s):  
Eiluned Pearce ◽  
Jacques Launay ◽  
Robin I. M. Dunbar
Keyword(s):  
Adult Education ◽  
Social Engagement ◽  
Gradual Increase ◽  
Social Bonding ◽  
Personal Knowledge ◽  
Naturalistic Study ◽  
Before And After ◽  
Proxy Measure ◽  
Group Members ◽  
Over Time

It has been proposed that singing evolved to facilitate social cohesion. However, it remains unclear whether bonding arises out of properties intrinsic to singing or whether any social engagement can have a similar effect. Furthermore, previous research has used one-off singing sessions without exploring the emergence of social bonding over time. In this semi-naturalistic study, we followed newly formed singing and non-singing (crafts or creative writing) adult education classes over seven months. Participants rated their closeness to their group and their affect, and were given a proxy measure of endorphin release, before and after their class, at three timepoints (months 1, 3 and 7). We show that although singers and non-singers felt equally connected by timepoint 3, singers experienced much faster bonding: singers demonstrated a significantly greater increase in closeness at timepoint 1, but the more gradual increase shown by non-singers caught up over time. This represents the first evidence for an ‘ice-breaker effect’ of singing in promoting fast cohesion between unfamiliar individuals, which bypasses the need for personal knowledge of group members gained through prolonged interaction. We argue that singing may have evolved to quickly bond large human groups of relative strangers, potentially through encouraging willingness to coordinate by enhancing positive affect.

scholarly journals Changes in social cohesion in a long-lived species under a perturbation regime

2019 ◽  
Author(s):  
M. Genovart ◽  
O. Gimenez ◽  
A. Bertolero ◽  
R. Choquet ◽  
D. Oro ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Social Cohesion ◽  
Group Living ◽  
Social Bonding ◽  
World Population ◽  
List Type ◽  
Social Species ◽  
The Social ◽  
Capture Recapture ◽  
A Site

AbstractUnderstanding the behaviour of a population under perturbations is crucial and can help to mitigate the effects of global change. Sociality can influence the dynamics of behavioural processes and plays an important role on populations’ resilience. However little is known about the effects of perturbations on the social cohesion of group-living animals.To explore the strength of social cohesion and its dynamics under perturbations, we studied an ecological system involving a colonial, long-lived species living in a site experiencing a shift to a perturbed regime. This regime, caused by the invasion of predators, led this colony to hold from 70% to only 3% of the total world population in only one decade. Because birds breed aggregated in discrete and annually changing patches within large colonies, we could disentangle whether annual aggregation was random or resulted from social bonding among individuals. Our goals were 1) to uncover if there was any long-term social bonding between individuals and 2) to examine whether the perturbation regime affected social cohesion.We explored social cohesion by means of contingency tables and, within the Social Network Analysis framework, by modeling interdependencies among observations using additive and multiplicative effects (AME) and accounted for missing data. We analysed 25 years of monitoring with an individual capture-recapture database of more than 3,500 individuals.We showed that social bonding occurs over years in this species. We additionally show that social bonding strongly decreased after the perturbation regime. We propose that sociality and individual behavioural heterogeneity have been playing a major role driving dispersal and thus population dynamics over the study period.Perturbations may lead not only to changes in individuals’ behaviours and fitness but also to a change in populations’ social cohesion. The demographic consequences of the breaking down of social bonds are still not well understood, but they can be critical for population dynamics of social species. Further studies considering individual heterogeneity, sociality and different types of perturbations should be carried out to improve our understanding on the resilience of social species.

scholarly journals Social context facilitates visuomotor synchrony and bonding in children and adults

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ellen M. Howard ◽  
Danielle Ropar ◽  
Roger Newport ◽  
Bahar Tunçgenç
Keyword(s):  
Social Context ◽  
Social Bonding ◽  
Social Contexts ◽  
Interaction Partner ◽  
Social Closeness ◽  
Fundamental Part ◽  
Interpersonal Synchrony ◽  
Adults And Children ◽  
Sensorimotor Coupling ◽  
Do So

AbstractInterpersonal synchrony is a fundamental part of human social interaction, with known effects on facilitating social bonding. Moving in time with another person facilitates prosocial behaviour, however, it is unknown if the degree of synchronisation predicts the degree of social bonding. Similarly, while people readily fall in synchrony even without being instructed to do so, we do not know whether such spontaneous synchronisation elicits similar prosocial effects as instructed synchronisation. Across two studies, we investigated how context (social vs non-social stimulus) and instruction (instructed vs uninstructed) influenced synchronisation accuracy and bonding with the interaction partner in adults and children. The results revealed improved visuomotor synchrony within a social, compared to non-social, context in adults and children. Children, but not adults, synchronised more accurately when instructed to synchronise than when uninstructed. For both children and adults, synchronisation in a social context elicited stronger social bonding towards an interaction partner as compared to synchronisation in a non-social context. Finally, children’s, but not adults’, degree of synchrony with the partner was significantly associated with their feelings of social closeness. These findings illuminate the interaction of sensorimotor coupling and joint action in social contexts and how these mechanisms facilitate synchronisation ability and social bonding.

scholarly journals Towards a clearer understanding of social identity theory’s self-esteem hypothesis.

2017 ◽  
Author(s):  
Mark Rubin
Keyword(s):  
Social Identity ◽  
Social Identity Theory ◽  
Identity Management ◽  
Management Strategies ◽  
Self Esteem ◽  
The Self ◽  
Group Behaviour ◽  
Dynamic Relation ◽  
Group Members ◽  
Collective Self Esteem

Social identity theory proposes that the need for self-esteem motivates group members to protect and enhance the positivity of their group. In this chapter, we explain this self-esteem hypothesis in detail and discuss its caveats and limitations. We also discuss recent work that proposes a dynamic relation between collective self-esteem and group-related outcomes. Based on this discussion, we present a reformulated version of the self-esteem hypothesis that makes more specific predictions than the original. We also broaden the scope of the self-esteem hypothesis by taking into account identity management strategies other than intergroup discrimination. Hence, this chapter moves beyond the blunt question of whether self-esteem motivates intergroup discrimination and instead provides a more nuanced explanation of the various issues that need to be considered when investigating the relation between the need for self-esteem and group behaviour.

scholarly journals An Unsupervised Approach for Detecting Group Shilling Attacks in Recommender Systems Based on Topological Potential and Group Behaviour Features

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Hongyun Cai ◽  
Fuzhi Zhang
Keyword(s):  
Recommender Systems ◽  
Detection Method ◽  
Potential Method ◽  
Detection Methods ◽  
Clustering Method ◽  
Group Behaviour ◽  
The Past ◽  
Group Members ◽  
Unsupervised Approach ◽  
Individual Features

To protect recommender systems against shilling attacks, a variety of detection methods have been proposed over the past decade. However, these methods focus mainly on individual features and rarely consider the lockstep behaviours among attack users, which suffer from low precision in detecting group shilling attacks. In this work, we propose a three-stage detection method based on strong lockstep behaviours among group members and group behaviour features for detecting group shilling attacks. First, we construct a weighted user relationship graph by combining direct and indirect collusive degrees between users. Second, we find all dense subgraphs in the user relationship graph to generate a set of suspicious groups by introducing a topological potential method. Finally, we use a clustering method to detect shilling groups by extracting group behaviour features. Extensive experiments on the Netflix and sampled Amazon review datasets show that the proposed approach is effective for detecting group shilling attacks in recommender systems, and the F1-measure on two datasets can reach over 99 percent and 76 percent, respectively.

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