Use and Function of Multi-Articulator Versus Multi-Sensory Acts in the Close-Range Communication of Orang-Utans

Author(s):  
Marlen Fröhlich ◽  
Natasha Bartolotta ◽  
Caroline Fryns ◽  
Colin Wagner ◽  
Laurene Momon ◽  
...  

Abstract From early infancy, human face-to-face communication is “multimodal”, comprising a plethora of interlinked articulators and sensory modalities. Although there is also growing evidence for this in nonhuman primates, the functions of integrating articulators (i.e. multiplex or multi-articulator acts) and channels (i.e. multimodal or multi-sensory acts) remain poorly understood. Here, we studied close-range social interactions within and beyond mother-infant pairs of Bornean and Sumatran orang-utans living in wild and captive settings, to examine to what extent species, setting and recipient-dependent factors affected the use of and responses to multi-sensory as well as multi-articulator communication. Results showed that both multi-sensory and multi-articulatory acts were more effective at eliciting responses (i.e. “apparently satisfactory outcomes”) than their respective uni-component parts, and generally played a larger role in wild populations. However, only multi-articulator acts were used more when the presumed goal did not match the dominant outcome for a specific communicative act, and were more common among non-mother-infant dyads and Sumatrans across settings. We suggest that communication through multiple sensory channels primarily facilitates effectiveness, whereas a flexible combination of articulators is relevant when social tolerance and interaction outcomes are less predictable. These different functions underscore the importance of distinguishing between these forms of multi-component communication.

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Marlen Fröhlich ◽  
Natasha Bartolotta ◽  
Caroline Fryns ◽  
Colin Wagner ◽  
Laurene Momon ◽  
...  

AbstractFrom early infancy, human face-to-face communication is multimodal, comprising a plethora of interlinked communicative and sensory modalities. Although there is also growing evidence for this in nonhuman primates, previous research rarely disentangled production from perception of signals. Consequently, the functions of integrating articulators (i.e. production organs involved in multicomponent acts) and sensory channels (i.e. modalities involved in multisensory acts) remain poorly understood. Here, we studied close-range social interactions within and beyond mother-infant pairs of Bornean and Sumatran orang-utans living in wild and captive settings, to examine use of and responses to multicomponent and multisensory communication. From the perspective of production, results showed that multicomponent acts were used more than the respective unicomponent acts when the presumed goal did not match the dominant outcome for a specific communicative act, and were more common among non-mother-infant dyads and Sumatran orang-utans. From the perception perspective, we found that multisensory acts were more effective than the respective unisensory acts, and were used more in wild compared to captive populations. We argue that multisensory acts primarily facilitate effectiveness, whereas multicomponent acts become relevant when interaction outcomes are less predictable. These different functions underscore the importance of distinguishing between production and perception in studies of communication.


2020 ◽  
Vol 117 (50) ◽  
pp. 31754-31759
Author(s):  
Sang Hyun Choi ◽  
Vikyath D. Rao ◽  
Tim Gernat ◽  
Adam R. Hamilton ◽  
Gene E. Robinson ◽  
...  

The duration of interaction events in a society is a fundamental measure of its collective nature and potentially reflects variability in individual behavior. Here we performed a high-throughput measurement of trophallaxis and face-to-face event durations experienced by a colony of honeybees over their entire lifetimes. The interaction time distribution is heavy-tailed, as previously reported for human face-to-face interactions. We developed a theory of pair interactions that takes into account individual variability and predicts the scaling behavior for both bee and extant human datasets. The individual variability of worker honeybees was nonzero but less than that of humans, possibly reflecting their greater genetic relatedness. Our work shows how individual differences can lead to universal patterns of behavior that transcend species and specific mechanisms for social interactions.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Erez Freud ◽  
Andreja Stajduhar ◽  
R. Shayna Rosenbaum ◽  
Galia Avidan ◽  
Tzvi Ganel

AbstractThe unprecedented efforts to minimize the effects of the COVID-19 pandemic introduce a new arena for human face recognition in which faces are partially occluded with masks. Here, we tested the extent to which face masks change the way faces are perceived. To this end, we evaluated face processing abilities for masked and unmasked faces in a large online sample of adult observers (n = 496) using an adapted version of the Cambridge Face Memory Test, a validated measure of face perception abilities in humans. As expected, a substantial decrease in performance was found for masked faces. Importantly, the inclusion of masks also led to a qualitative change in the way masked faces are perceived. In particular, holistic processing, the hallmark of face perception, was disrupted for faces with masks, as suggested by a reduced inversion effect. Similar changes were found whether masks were included during the study or the test phases of the experiment. Together, we provide novel evidence for quantitative and qualitative alterations in the processing of masked faces that could have significant effects on daily activities and social interactions.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Teruyoshi Kobayashi ◽  
Mathieu Génois

AbstractDensification and sparsification of social networks are attributed to two fundamental mechanisms: a change in the population in the system, and/or a change in the chances that people in the system are connected. In theory, each of these mechanisms generates a distinctive type of densification scaling, but in reality both types are generally mixed. Here, we develop a Bayesian statistical method to identify the extent to which each of these mechanisms is at play at a given point in time, taking the mixed densification scaling as input. We apply the method to networks of face-to-face interactions of individuals and reveal that the main mechanism that causes densification and sparsification occasionally switches, the frequency of which depending on the social context. The proposed method uncovers an inherent regime-switching property of network dynamics, which will provide a new insight into the mechanics behind evolving social interactions.


Behaviour ◽  
1996 ◽  
Vol 133 (15-16) ◽  
pp. 1265-1279 ◽  
Author(s):  
Cliff H. Summers ◽  
Thomas J. Andrews

AbstractFemale green anoles, Anolis carolinensis, were paired in terraria to investigate behavioral components of social interaction. Resources (perching sites, prey, and males as potential mates) were limited to assess their importance to cohabiting females. During interaction, paired females exhibited aggressive social behavior which contributed to the development of dominant-subordinate relationships. Dominant status and its relationship to differential resource acquisition was defined primarily by frequency of displacement of another female. Along with displacement, dominant females also had increased frequency of assertion displays, challenge displays, attacks and biting (Figs 1 & 2). Subordinate females were displaced more often and assumed submissive postures. No differences were found between dominant and subordinate females for perch site selection, body color or in prey capturing latency or success (Figs 3 & 4). Perch site elevation was not different between dominant and subordinate females, but was significantly lower than males. The color of paired females was not different unless males were present, in which case dominant females were darker. Paired females also respond differently to courtship display (Fig. 5). Dominant females responded with displays significantly more often than subordinate females to male courtship, indicating receptivity. The role of dominant-subordinate relationships among female A. carolinensis may include courtship and reproductive success as an important component, with consequences for the outcome of aggressive and reproductive social interactions with males.


2021 ◽  
Vol 2 ◽  
Author(s):  
Yilu Sun ◽  
Andrea Stevenson Won

The ability to perceive emotional states is a critical part of social interactions, shaping how people understand and respond to each other. In face-to-face communication, people perceive others’ emotions through observing their appearance and behavior. In virtual reality, how appearance and behavior are rendered must be designed. In this study, we asked whether people conversing in immersive virtual reality (VR) would perceive emotion more accurately depending on whether they and their partner were represented by realistic or abstract avatars. In both cases, participants got similar information about the tracked movement of their partners’ heads and hands, though how this information was expressed varied. We collected participants’ self-reported emotional state ratings of themselves and their ratings of their conversational partners’ emotional states after a conversation in VR. Participants’ ratings of their partners’ emotional states correlated to their partners’ self-reported ratings regardless of which of the avatar conditions they experienced. We then explored how these states were reflected in their nonverbal behavior, using a dyadic measure of nonverbal behavior (proximity between conversational partners) and an individual measure (expansiveness of gesture). We discuss how this relates to measures of social presence and social closeness.


Author(s):  
Moch. Choirul Arif ◽  
Ries Dyah Fitriyah

The aim of the research is to explain ; first, the basic argument for household muslims to domesticate information and communication technology. Second, the process of domestication of information technology. The third implication of the domestication of technology and information. This study used descriptive qualitative method with phenomenological approach. The goal is to understand the meaning behind the action naturally. The results of this study are: First, Domestication of the information and communication technology rests on reasoning awareness, that leads to understanding the meaning and function of information and communication technology for them (Purposeful actions). Second.The existence of kampoeng cyber as instrument of the process of domestication of information and communication technology.  Was apparently able to bring parents and children together in cultural negotiation space. The result is a process of aproriation, objectification, incorporation and conversion which accelerate the domestication of information and communication technology. Third, Moslem family awareness of the positive and negative impact that the process of domestication of information and communication technology influences their religious and social interactions. Therefore, the Cyber Kampoeng developed is used a medium of the construction awareness and values inheritance in the next generation.


2021 ◽  
Author(s):  
Robin Achterhof ◽  
Inez Myin-Germeys ◽  
Eva Bamps ◽  
Noëmi Hagemann ◽  
Karlijn Susanna Francisca Maria Hermans ◽  
...  

Early findings on the impact of the COVID-19 pandemic on adolescents, suggest that – despite being at the lowest physical health risk – both their mental health and day-to-day social lives are strongly affected. In this longitudinal study, we assessed changes in adolescent psychopathology symptoms, the quality and quantity of daily-life social interactions, and the relationship between social interactions and psychopathology symptoms before and during the pandemic.A sample of n=173 Flemish adolescents (mean age=16.0 at latest measurement; 89% girls) from the SIGMA cohort was tested between January 2018 - June 2019; and between April 27th - May 10th 2020. Subclinical psychopathology was assessed using the Brief Symptom Inventory-53; daily social interactions were assessed in six-day experience sampling periods with ten daily questionnaires.Multilevel linear and logistic regression analyses indicated lower general psychopathology and anxiety symptoms, beyond age effects; fewer face-to-face social interactions, more online social interactions; and higher-quality face-to-face interactions during the pandemic than before. Negative associations between psychopathology and the quality of face-to-face peer and family interactions were stronger during the pandemic than pre-pandemic.The observed decrease and stability in psychopathology symptoms is surprising and potentially reflects resilience. Although digital communication may buffer much of the quarantine-induced distress, the current results imply that high-quality face-to-face interactions with family and peers may have been more powerful in keeping adolescents resilient. As restrictions are lifted and adolescents’ daily lives and social worlds change, it is crucial to learn more about the longer-term effects of the experienced social deprivation.


2021 ◽  
Vol 44 (1) ◽  
pp. 475-493
Author(s):  
Catherine J. Stoodley ◽  
Peter T. Tsai

Social interactions involve processes ranging from face recognition to understanding others’ intentions. To guide appropriate behavior in a given context, social interactions rely on accurately predicting the outcomes of one's actions and the thoughts of others. Because social interactions are inherently dynamic, these predictions must be continuously adapted. The neural correlates of social processing have largely focused on emotion, mentalizing, and reward networks, without integration of systems involved in prediction. The cerebellum forms predictive models to calibrate movements and adapt them to changing situations, and cerebellar predictive modeling is thought to extend to nonmotor behaviors. Primary cerebellar dysfunction can produce social deficits, and atypical cerebellar structure and function are reported in autism, which is characterized by social communication challenges and atypical predictive processing. We examine the evidence that cerebellar-mediated predictions and adaptation play important roles in social processes and argue that disruptions in these processes contribute to autism.


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