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Pritchard AJ, Fefferman NH. Trade-offs in resource access and health by avoidance of self-fouling, motivated via disgust. Ecol Modell 2023. [DOI: 10.1016/j.ecolmodel.2022.110225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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2
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Sunga J, Webber QM, Humber J, Rodrigues B, Broders HG. Roost fidelity partially explains maternity roosting association patterns in Myotis lucifugus. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Bracken AM, Christensen C, O'Riain MJ, Fürtbauer I, King AJ. Flexible group cohesion and coordination, but robust leader-follower roles, in a wild social primate using urban space. Proc Biol Sci 2022; 289:20212141. [PMID: 35078361 PMCID: PMC8790338 DOI: 10.1098/rspb.2021.2141] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Collective behaviour has a critical influence on group social structure and organization, individual fitness and social evolution, but we know little about whether and how it changes in anthropogenic environments. Here, we show multiple and varying effects of urban space-use upon group-level processes in a primate generalist-the chacma baboon (Papio ursinus)-within a managed wild population living at the urban edge in the City of Cape Town, South Africa. In natural space, we observe baboon-typical patterns of collective behaviour. By contrast, in urban space (where there are increased risks, but increased potential for high-quality food rewards), baboons show extreme flexibility in collective behaviour, with changes in spatial cohesion and association networks, travel speeds and group coordination. However, leader-follower roles remain robust across natural and urban space, with adult males having a disproportionate influence on the movement of group members. Their important role in the group's collective behaviour complements existing research and supports the management tactic employed by field rangers of curbing the movements of adult males, which indirectly deters the majority of the group from urban space. Our findings highlight both flexibility and robustness in collective behaviour when groups are presented with novel resources and heightened risks.
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Affiliation(s)
- Anna M. Bracken
- Department of Biosciences, Faculty of Science and Engineering, Swansea University, Swansea, UK
| | - Charlotte Christensen
- Department of Biosciences, Faculty of Science and Engineering, Swansea University, Swansea, UK
| | - M. Justin O'Riain
- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, University of Cape Town, Cape Town, South Africa
| | - Ines Fürtbauer
- Department of Biosciences, Faculty of Science and Engineering, Swansea University, Swansea, UK
| | - Andrew J. King
- Department of Biosciences, Faculty of Science and Engineering, Swansea University, Swansea, UK
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4
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Montanari D, O’Hearn WJ, Hambuckers J, Fischer J, Zinner D. Coordination during group departures and progressions in the tolerant multi-level society of wild Guinea baboons (Papio papio). Sci Rep 2021; 11:21938. [PMID: 34754018 PMCID: PMC8578668 DOI: 10.1038/s41598-021-01356-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/26/2021] [Indexed: 11/24/2022] Open
Abstract
Collective movement of social groups requires coordination between individuals. When cohesion is imperative, consensus must be reached, and specific individuals may exert disproportionate influence during decision-making. Animals living in multi-level societies, however, often split into consistent social subunits during travel, which may impact group coordination processes. We studied collective movement in the socially tolerant multi-level society of Guinea baboons (Papio papio). Using 146 group departures and 100 group progressions from 131 Guinea baboons ranging in Senegal's Niokolo-Koba National Park, we examined individual success at initiating group departures and position within progressions. Two-thirds of attempted departures were initiated by adult males and one third by adult females. Both sexes were equally successful at initiating departures (> 80% of initiations). During group progressions, bachelor males were predominantly found in front, while reproductively active 'primary' males and females were observed with similar frequency across the whole group. The pattern of collective movement in Guinea baboons was more similar to those described for baboons living in uni-level societies than to hamadryas baboons, the only other multi-level baboon species, where males initiate and decide almost all group departures. Social organization alone therefore does not determine which category of individuals influence group coordination.
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Affiliation(s)
- Davide Montanari
- grid.418215.b0000 0000 8502 7018Cognitive Ethology Laboratory, German Primate Center, Kellnerweg 4, 37077 Göttingen, Germany
| | - William J. O’Hearn
- grid.418215.b0000 0000 8502 7018Cognitive Ethology Laboratory, German Primate Center, Kellnerweg 4, 37077 Göttingen, Germany
| | - Julien Hambuckers
- grid.4861.b0000 0001 0805 7253HEC Liège, University of Liège, Liège, Belgium
| | - Julia Fischer
- grid.418215.b0000 0000 8502 7018Cognitive Ethology Laboratory, German Primate Center, Kellnerweg 4, 37077 Göttingen, Germany ,grid.7450.60000 0001 2364 4210Department of Primate Cognition, Georg-August-Universität Göttingen, 37077 Göttingen, Germany ,grid.511272.2Leibniz ScienceCampus Primate Cognition, 37077 Göttingen, Germany
| | - Dietmar Zinner
- grid.418215.b0000 0000 8502 7018Cognitive Ethology Laboratory, German Primate Center, Kellnerweg 4, 37077 Göttingen, Germany ,grid.7450.60000 0001 2364 4210Department of Primate Cognition, Georg-August-Universität Göttingen, 37077 Göttingen, Germany ,grid.511272.2Leibniz ScienceCampus Primate Cognition, 37077 Göttingen, Germany
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5
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Baker CJ, Frère CH, Franklin CE, Campbell HA, Irwin TR, Dwyer RG. Crocodile social environments dictated by male philopatry. Behav Ecol 2021. [DOI: 10.1093/beheco/arab120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Examining the social behaviors of solitary species can be challenging due to the rarity in which interactions occur and the large and often inaccessible areas which these animals inhabit. As shared space-use is a prerequisite for the expression of social behaviors, we can gain insights into the social environments of solitary species by examining the degree of spatial overlap between individuals. Over a 10-year period, we examined how spatial overlap amongst 105 estuarine crocodiles Crocodylus porosus was influenced by season, sex, and movement tactic. We discovered that crocodiles displayed highly consistent spatial overlaps with conspecifics between months and across years. Furthermore, male crocodiles that exhibited a greater degree of site fidelity displayed more stable social environments, while females and males that were less site-attached had more dynamic social environments with spatial overlaps between conspecifics peaking during the mating season. Our results demonstrate how long-term tracking of multiple individuals within the same population can be used to quantify the spatial structure and social environment of cryptic and solitary species.
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Affiliation(s)
- Cameron J Baker
- The School of Biological Sciences, The University of Queensland, Brisbane, Australia
| | - Céline H Frère
- Global Change Ecology Research Group, University of the Sunshine Coast, Sippy Downs, Australia
| | - Craig E Franklin
- The School of Biological Sciences, The University of Queensland, Brisbane, Australia
| | - Hamish A Campbell
- Research Institute for Environment & Livelihoods, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Terri R Irwin
- Australia Zoo, 1638 Steve Irwin Way, Beerwah, Australia
| | - Ross G Dwyer
- The School of Biological Sciences, The University of Queensland, Brisbane, Australia
- Global Change Ecology Research Group, University of the Sunshine Coast, Sippy Downs, Australia
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6
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Genetic relatedness cannot explain social preferences in black-and-white ruffed lemurs, Varecia variegata. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Webber QMR, Laforge MP, Bonar M, Robitaille AL, Hart C, Zabihi-Seissan S, Vander Wal E. The Ecology of Individual Differences Empirically Applied to Space-Use and Movement Tactics. Am Nat 2020; 196:E1-E15. [PMID: 32552106 DOI: 10.1086/708721] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Movement provides a link between individual behavioral ecology and the spatial and temporal variation in an individual's landscape. Individual variation in movement traits is an important axis of animal personality, particularly in the context of foraging ecology. We tested whether individual caribou (Rangifer tarandus) displayed plasticity in movement and space-use behavior across a gradient of resource aggregation. We quantified first-passage time and range-use ratio as proxies for movement-related foraging behavior and examined how these traits varied at the individual level across a foraging resource gradient. Our results suggest that individuals adjusted first-passage time but not range-use ratio to maximize access to high-quality foraging resources. First-passage time was repeatable, and intercepts for first-passage time and range-use ratio were negatively correlated. Individuals matched first-passage time but not range-use ratio to the expectations of our patch-use model that maximized access to foraging resources, a result that suggests that individuals acclimated their movement patterns to accommodate both intra- and interannual variation in foraging resources on the landscape. Collectively, we highlight repeatable movement and space-use tactics and provide insight into how individual plasticity in movement interacts with landscape processes to affect the distribution of behavioral phenotypes and potentially fitness and population dynamics.
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Predictability and variability of association patterns in sooty mangabeys. Behav Ecol Sociobiol 2020; 74:46. [PMID: 32226199 PMCID: PMC7089916 DOI: 10.1007/s00265-020-2829-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 03/05/2020] [Accepted: 03/11/2020] [Indexed: 01/30/2023]
Abstract
Abstract In many group-living animal species, interactions take place in changing social environments, increasing the information processing necessary to optimize social decision-making. Communities with different levels of spatial and temporal cohesion should differ in the predictability of association patterns. While the focus in this context has been on primate species with high fission-fusion dynamics, little is known about the variability of association patterns in species with large groups and high temporal cohesion, where group size and the environment create unstable subgroups. Here, we use sooty mangabeys as a model species to test predictability on two levels: on the subgroup level and on the dyadic level. Our results show that the entirety of group members surrounding an individual is close to random in sooty mangabeys; making it unlikely that individuals can predict the exact composition of bystanders for any interaction. At the same time, we found predictable dyadic associations based on assortative mixing by age, kinship, reproductive state in females, and dominance rank; potentially providing individuals with the ability to partially predict which dyads can be usually found together. These results indicate that animals living in large cohesive groups face different challenges from those with high fission-fusion dynamics, by having to adapt to fast-changing social contexts, while unable to predict who will be close-by in future interactions. At the same time, entropy measures on their own are unable to capture the predictability of association patterns in these groups. Significance statement While the challenges created by high fission-fusion dynamics in animal social systems and their impact on the evolution of cognitive abilities are relatively well understood, many species live in large groups without clear spatio-temporal subgrouping. Nonetheless, they show remarkable abilities in considering their immediate social environment when making social decisions. Measures of entropy of association patterns have recently been proposed to measure social complexity across species. Here, we evaluate suggested entropy measures in sooty mangabeys. The high entropy of their association patterns would indicate that subgroup composition is largely random, not allowing individuals to prepare for future social environments. However, the existence of strong assortativity on the dyadic level indicates that individuals can still partially predict who will be around whom, even if the overall audience composition might be unclear. Entropy alone, therefore, captures social complexity incompletely, especially in species facing fast-changing social environments.
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Bachorec E, Horáček I, Hulva P, Konečný A, Lučan RK, Jedlička P, Shohdi WM, Řeřucha Š, Abi-Said M, Bartonička T. Spatial networks differ when food supply changes: Foraging strategy of Egyptian fruit bats. PLoS One 2020; 15:e0229110. [PMID: 32097434 PMCID: PMC7041839 DOI: 10.1371/journal.pone.0229110] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 01/29/2020] [Indexed: 11/19/2022] Open
Abstract
Animals are faced with a range of ecological constraints that shape their behavioural decisions. Habitat features that affect resource abundance will also have an impact, especially as regards spatial distribution, which will in turn affect associations between the animals. Here we utilised a network approach, using spatial and genetic data, to describe patterns in use of space (foraging sites) by free-ranging Egyptian fruit bats (Rousettus aegyptiacus) at the Dakhla Oasis in Egypt. We observed a decrease in home range size during spring, when food availability was lowest, which was reflected by differences in space sharing networks. Our data showed that when food was abundant, space sharing networks were less connected and more related individuals shared more foraging sites. In comparison, when food was scarce the bats had few possibilities to decide where and with whom to forage. Overall, both networks had high mean degree, suggesting communal knowledge of predictable food distribution.
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Affiliation(s)
- Erik Bachorec
- Department of Botany and Zoology, Masaryk University, Kotlářská, Brno, Czech Republic
| | - Ivan Horáček
- Department of Zoology, Charles University in Prague, Viničná, Prague, Czech Republic
| | - Pavel Hulva
- Department of Zoology, Charles University in Prague, Viničná, Prague, Czech Republic
| | - Adam Konečný
- Department of Botany and Zoology, Masaryk University, Kotlářská, Brno, Czech Republic
| | - Radek K. Lučan
- Department of Zoology, Charles University in Prague, Viničná, Prague, Czech Republic
| | - Petr Jedlička
- Institute of Scientific Instruments of the Czech Academy of Sciences (ISI), Královopolská, Brno, Czech Republic
| | | | - Šimon Řeřucha
- Institute of Scientific Instruments of the Czech Academy of Sciences (ISI), Královopolská, Brno, Czech Republic
| | - Mounir Abi-Said
- Department of Earth and Life Sciences, Faculty of Sciences II, Lebanese University, Fanar, Lebanon
| | - Tomáš Bartonička
- Department of Botany and Zoology, Masaryk University, Kotlářská, Brno, Czech Republic
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A subset of topologically associating domains fold into mesoscale core-periphery networks. Sci Rep 2019; 9:9526. [PMID: 31266973 PMCID: PMC6606598 DOI: 10.1038/s41598-019-45457-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 06/07/2019] [Indexed: 12/21/2022] Open
Abstract
Mammalian genomes are folded into a hierarchy of compartments, topologically associating domains (TADs), subTADs, and long-range looping interactions. The higher-order folding patterns of chromatin contacts within TADs and how they localize to disease-associated single nucleotide variants (daSNVs) remains an open area of investigation. Here, we analyze high-resolution Hi-C data with graph theory to understand possible mesoscale network architecture within chromatin domains. We identify a subset of TADs exhibiting strong core-periphery mesoscale structure in embryonic stem cells, neural progenitor cells, and cortical neurons. Hyper-connected core nodes co-localize with genomic segments engaged in multiple looping interactions and enriched for occupancy of the architectural protein CCCTC binding protein (CTCF). CTCF knockdown and in silico deletion of CTCF-bound core nodes disrupts core-periphery structure, whereas in silico mutation of cell type-specific enhancer or gene nodes has a negligible effect. Importantly, neuropsychiatric daSNVs are significantly more likely to localize with TADs folded into core-periphery networks compared to domains devoid of such structure. Together, our results reveal that a subset of TADs encompasses looping interactions connected into a core-periphery mesoscale network. We hypothesize that daSNVs in the periphery of genome folding networks might preserve global nuclear architecture but cause local topological and functional disruptions contributing to human disease. By contrast, daSNVs co-localized with hyper-connected core nodes might cause severe topological and functional disruptions. Overall, these findings shed new light into the mesoscale network structure of fine scale genome folding within chromatin domains and its link to common genetic variants in human disease.
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11
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The role of habitat configuration in shaping social structure: a gap in studies of animal social complexity. Behav Ecol Sociobiol 2019. [DOI: 10.1007/s00265-018-2602-7] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Bonnell TR, Henzi SP, Barrett L. Functional social structure in baboons: Modeling interactions between social and environmental structure in group-level foraging. J Hum Evol 2019; 126:14-23. [DOI: 10.1016/j.jhevol.2018.10.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 10/28/2018] [Accepted: 10/29/2018] [Indexed: 10/27/2022]
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13
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Strandburg-Peshkin A, Papageorgiou D, Crofoot MC, Farine DR. Inferring influence and leadership in moving animal groups. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170006. [PMID: 29581391 PMCID: PMC5882976 DOI: 10.1098/rstb.2017.0006] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2017] [Indexed: 11/12/2022] Open
Abstract
Collective decision-making is a daily occurrence in the lives of many group-living animals, and can have critical consequences for the fitness of individuals. Understanding how decisions are reached, including who has influence and the mechanisms by which information and preferences are integrated, has posed a fundamental challenge. Here, we provide a methodological framework for studying influence and leadership in groups. We propose that individuals have influence if their actions result in some behavioural change among their group-mates, and are leaders if they consistently influence others. We highlight three components of influence (influence instances, total influence and consistency of influence), which can be assessed at two levels (individual-to-individual and individual-to-group). We then review different methods, ranging from individual positioning within groups to information-theoretic approaches, by which influence has been operationally defined in empirical studies, as well as how such observations can be aggregated to give insight into the underlying decision-making process. We focus on the domain of collective movement, with a particular emphasis on methods that have recently been, or are being, developed to take advantage of simultaneous tracking data. We aim to provide a resource bringing together methodological tools currently available for studying leadership in moving animal groups, as well as to discuss the limitations of current methodologies and suggest productive avenues for future research.This article is part of the theme issue 'Collective movement ecology'.
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Affiliation(s)
- Ariana Strandburg-Peshkin
- Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Am Obstberg 1, 78315 Radolfzell, Germany
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurstrasse 190, 8057 Zurich, Switzerland
| | - Danai Papageorgiou
- Department of Collective Behaviour, Max Planck Institute for Ornithology, Universitätsstrasse 10, 78464 Konstanz, Germany
- Chair of Biodiversity and Collective Behaviour, Department of Biology, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany
| | - Margaret C Crofoot
- Department of Anthropology, University of California Davis, 1 Shields Ave, Davis, CA 95616, USA
- Smithsonian Tropical Research Institute, Luis Clement Avenue, Building 401 Tupper, Balboa Ancon, Panama
| | - Damien R Farine
- Department of Collective Behaviour, Max Planck Institute for Ornithology, Universitätsstrasse 10, 78464 Konstanz, Germany
- Chair of Biodiversity and Collective Behaviour, Department of Biology, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany
- Edward Grey Institute of Field Ornithology, Department of Zoology, University of Oxford, Oxford OX1 3PS, UK
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Csermely P. The Wisdom of Networks: A General Adaptation and Learning Mechanism of Complex Systems: The Network Core Triggers Fast Responses to Known Stimuli; Innovations Require the Slow Network Periphery and Are Encoded by Core-Remodeling. Bioessays 2017; 40. [PMID: 29168203 DOI: 10.1002/bies.201700150] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 10/12/2017] [Indexed: 12/30/2022]
Abstract
I hypothesize that re-occurring prior experience of complex systems mobilizes a fast response, whose attractor is encoded by their strongly connected network core. In contrast, responses to novel stimuli are often slow and require the weakly connected network periphery. Upon repeated stimulus, peripheral network nodes remodel the network core that encodes the attractor of the new response. This "core-periphery learning" theory reviews and generalizes the heretofore fragmented knowledge on attractor formation by neural networks, periphery-driven innovation, and a number of recent reports on the adaptation of protein, neuronal, and social networks. The core-periphery learning theory may increase our understanding of signaling, memory formation, information encoding and decision-making processes. Moreover, the power of network periphery-related "wisdom of crowds" inventing creative, novel responses indicates that deliberative democracy is a slow yet efficient learning strategy developed as the success of a billion-year evolution. Also see the video abstract here: https://youtu.be/IIjP7zWGjVE.
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Affiliation(s)
- Peter Csermely
- Department of Medical Chemistry, Semmelweis University, Budapest, Hungary
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