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Social Brain Hypothesis: Vocal and Gesture Networks of Wild ChimpanzeesA key driver of brain evolution in primates and humans is the cognitive demands arising from managing social relationships. In primates, grooming plays a key role in maintaining these relationships, but the time that can be devoted to grooming is inherently limited. Communication may act as an additional, more time-efficient bonding mechanism to grooming, but how patterns of communication are related to patterns of sociality is still poorly understood. We used social network analysis to examine the associations between close proximity (duration of time spent within 10m per hour spent in the same party), grooming, vocal communication and gestural communication (duration of time and frequency of behaviour per hour spent within 10 meters) in wild chimpanzees. The results were not corrected for multiple testing. Chimpanzees had differentiated social relationships, with focal chimpanzees maintaining some level of proximity to almost all group members, but directing gestures at and grooming with a smaller number of preferred social partners. Pairs of chimpanzees that had high levels of close proximity had higher rates of grooming. Importantly, higher rates of gestural communication were also positively associated with levels of proximity, and specifically gestures associated with affiliation (greeting, gesture to mutually groom) were related to proximity. Synchronized low-intensity pant-hoots were also positively related to proximity in pairs of chimpanzees. Further, there were differences in the size of individual chimpanzees’ proximity networks - the number of social relationships they maintained with others. Focal chimpanzees with larger proximity networks had a higher rate of both synchronized low- intensity pant-hoots and synchronized high-intensity pant-hoots. These results suggest that in addition to grooming, both gestures and synchronized vocalisations may play key roles in allowing chimpanzees to manage a large and differentiated set of social relationships. Gestures may be important in reducing the aggression arising from being in close proximity to others, allowing for proximity to be maintained for longer and facilitating grooming. Vocalisations may allow chimpanzees to communicate with a larger number of recipients than gestures and the synchronized nature of the pant-hoot calls may facilitate social bonding of more numerous social relationships. As group sizes increased through human evolution, both gestures and synchronized vocalizations may have played important roles in bonding social relationships in a more time-efficient manner than grooming.
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The repertoire and intentionality of gestural communication in wild chimpanzees.A growing body of evidence suggests that human language may have emerged primarily in the gestural rather than vocal domain, and that studying gestural communication in great apes is crucial to understanding language evolution. Although manual and bodily gestures are considered distinct at a neural level, there has been very limited consideration of potential differences at a behavioural level. In this study, we conducted naturalistic observations of adult wild East African chimpanzees (Pan troglodytes schweinfurthii) in order to establish a repertoire of gestures, and examine intentionality of gesture production, use and comprehension, comparing across manual and bodily gestures. At the population level, 120 distinct gesture types were identified, consisting of 65 manual gestures and 55 bodily gestures. Both bodily and manual gestures were used intentionally and effectively to attain specific goals, by signallers who were sensitive to recipient attention. However, manual gestures differed from bodily gestures in terms of communicative persistence, indicating a qualitatively different form of behavioural flexibility in achieving goals. Both repertoire size and frequency of manual gesturing were more affiliative than bodily gestures, while bodily gestures were more antagonistic. These results indicate that manual gestures may have played a significant role in the emergence of increased flexibility in great ape communication and social bonding
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The Vatican's adaptation to new media: an exploration of the strategies, benefits and impacts on the local churchThis thesis investigates how the Catholic Church has adapted to the emergence of new media, its strategies, benefits, and impacts on the local church. Religious institutions such as the Catholic Church have entered the world of new media in an effort to achieve their aims and objectives, emphasizing the power of new media as ‘new spaces for evangelization’. This situation requires a reorganization that takes into account the historic development of the Holy See’s structures of communication, unified integration, and management. As a result, the Dictionary of Communications was created to respond to the current demands of communication by factors of convergence and interactivity. To assess how the new Dicastery of Communications has fared in the face of recent changes, the study traces the historical evolution of the Church’s attitude towards the media, from one of outright hostility in the early decades of the twentieth century to a much more open and progressive stance today. Generally, the study aims to explore how the Vatican has adapted to new media and the strategies, benefits, and impacts on the local church. Specifically, the study identifies how the Vatican uses new media strategies to engage existing audiences and to market to potential adherents; to explore how the new Dicastery for Communications is taking full advantage of the benefits and opportunities presented by the new media and engagement paradigms; to examine the barriers to and dangers of the Vatican's adoption of new media strategies to engage existing audiences and to market to potential adherents; and lastly, to consider how new media strategies from the center cascade and impact local churches. The study employed the use of qualitative research methods, with the elite interview used as the medium of data collection in the research. Interviews conducted with nine elites, including three each of the members of the Vatican’s Dicastery for Communications, local Church officials in the developing world, particularly the Archdiocese of Ibadan, and independent experts with knowledge about the Vatican's media, serve as major data employed to discover how successful Pope Francis and the Catholic Church as a whole have been in this endeavor of strategic communications and synodality. The initial stage of the data analysis procedure involved transcribing the interviews, prioritizing the objectives of precision and ethical reporting in documenting the participants' remarks. The transcribed data were further analyzed using thematic data analysis techniques. The study finds that the new media strategies adopted by the Vatican have succeeded in terms of enabling a more coherent internal communications structure but have largely failed to attract new converts to Catholicism. Overall, the findings suggest the church is still finding its way in the new media sphere. Conceptually, the church is on the right track. Its challenge now lies in implementing the practical steps necessary if the digital sphere is truly to become a modern space for evangelisation.
