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2025	Functional and Morphological Differences in the Play Face and Full Play Face in Lowland Gorillas, a Hominid Species: Implications for the Evolutionary Roots of Smile and Laugh Face American Journal of Biological Anthropology Giada Cordoni, Martina Brescini, Luca Pirarba, Florinda Giaretto, Ivan Norscia
2025	Age differences in bonobo (Pan paniscus) multimodal communication signals Animal Cognition Elizabeth Beachem, Caleb Ghione, Halena Soto, Lisette van den Berg, Craig Stanford
2025	Adapting the facial action coding system for chimpanzees (Pan troglodytes) to bonobos (Pan paniscus): the ChimpFACS extension for bonobos PeerJ Catia Correia-Caeiro, Paul Henrik Kuchenbuch, Linda S. Oña, Franziska Wegdell, Maël Leroux, André Schuele, Jared Taglialatela, Simon Townsend, Martin Surbeck, Bridget M. Waller, Katja Liebal
2025	Teeth Baring as a Model to Understand Complex Facial Signals in a Tolerant Macaque Species American Journal of Primatology Federico Fantoni, Veronica Maglieri, Nicolò Giusti, Chiara Scopa, Virginia Pallante, Antonio Lorenzo Loprete, Elisabetta Palagi
2025	Expressives, directives and assertions: Cognitive dimensions of speech acts Language & Communication Hubert Hågemark, Peter Gärdenfors
2025	The role of exploration and exploitation in primate communication Proceedings of the Royal Society B: Biological Sciences Marlen Fröhlich, Cedric Boeckx, Claudio Tennie
2025	GorillaFACS: The Facial Action Coding System for the Gorilla spp. PLOS ONE Catia Correia-Caeiro, Raquel Costa, Misato Hayashi, Anne Burrows, Jordan Pater, Takako Miyabe-Nishiwaki, Jack L. Richardson, Martha M. Robbins, Bridget Waller, Katja Liebal
2025	Combinatorics and complexity of chimpanzee (Pan troglodytes) facial signals Animal Cognition Brittany N. Florkiewicz, Teddy Lazebnik
2025	Facial expression production and perception in non-human primates Nature Reviews Psychology Bridget M. Waller, Olivia O’Callaghan, Jérôme Micheletta, Jamie Whitehouse
2025	Faces of time: a historical overview of rapid innovations in coding animal facial signals Frontiers in Veterinary Science Teddy Lazebnik, Brittany Florkiewicz
2025	Assessing flexibility in meaning and context in non‐human communication Biological Reviews Marlen Fröhlich, Juliette Aychet, Peter R. Clark, Catherine Crockford, Guillaume Dezecache, Nancy Rebout, Carel P. van Schaik, Kirsty E. Graham
2025	Examining Mammalian facial behavior using Facial Action Coding Systems (FACS) and combinatorics PLOS ONE Aisha Mahmoud, Lauren Scott, Brittany N. Florkiewicz
2025	Individual variation in animal communication: from species averages to unique voices Biological Reviews Angèle Lombrey, Marlen Fröhlich
2024	Operationalizing Intentionality in Primate Communication: Social and Ecological Considerations International Journal of Primatology Evelina D. Rodrigues, Marlen Fröhlich
2024	Neurobiology and Anatomy of Facial Expressions in Great Apes: Application of the AnimalFACS and Its Possible Association with the Animal’s Affective State Animals Adriana Domínguez-Oliva, Cuauhtémoc Chávez, Julio Martínez-Burnes, Adriana Olmos-Hernández, Ismael Hernández-Avalos, Daniel Mota-Rojas
2024	Belugas (Delphinapterus leucas) create facial displays during social interactions by changing the shape of their melons Animal Cognition Justin T. Richard, Isabelle Pellegrini, Rachael Levine
2024	Tell-tale signals: faces reveal playful and aggressive mood in wolves Animal Behaviour Veronica Maglieri, Fosca Mastrandrea, Alice Galotti, Martin Böye, Sébastien Laurent, Andrea Marcolla, Elisabetta Palagi
2024	Young sanctuary-living chimpanzees produce more communicative expressions with artificial objects than with natural objects Royal Society Open Science Violet Gibson, Derry Taylor, Sarah Salphati, Eszter Somogyi, Iris Nomikou, Marina Davila-Ross
2024	Orangutans and chimpanzees produce morphologically varied laugh faces in response to the age and sex of their social partners Scientific Reports Fabio Crepaldi, Florence Rocque, Guillaume Dezecache, Leanne Proops, Marina Davila-Ross
2024	Play Behavior Varies with Age, Sex, and Socioecological Context in Wild, Immature Orangutans (Pongo spp.) International Journal of Primatology Julia A. Kunz, Sonja S. Falkner, Fikty Aprilinayati, Guilhem J. Duvot, Marlen Fröhlich, Erik P. Willems, Sri Suci Utami Atmoko, Carel P. van Schaik, Caroline Schuppli, Maria A. van Noordwijk
2024	Hormonal and behavioural responses to visual social cues in common marmosets (Callithrix jacchus) Applied Animal Behaviour Science Catia Correia-Caeiro, Keiko Mouri, Michael A. Huffman, Duncan A. Wilson, Xitong Wang, Takako Miyabe-Nishiwaki
2023	Feline faces: Unraveling the social function of domestic cat facial signals Behavioural Processes Lauren Scott, Brittany N. Florkiewicz
2023	Horses (Equus caballus) facial micro-expressions: insight into discreet social information Scientific Reports Claude Tomberg, Maxime Petagna, Lucy-Anne de Selliers de Moranville
2022	Bared‐teeth displays in bonobos (Pan paniscus): An assessment of the power asymmetry hypothesis American Journal of Primatology Jolinde M. R. Vlaeyen, Raphaela Heesen, Mariska E. Kret, Zanna Clay, Thomas Bionda, Yena Kim
2022	No Evidence for Biased Attention Towards Emotional Scenes in Bornean Orangutans (Pongo pygmaeus) Affective Science D. W. Laméris, E. van Berlo, T. S. Roth, M. E. Kret
2022	Flexible signalling strategies by victims mediate post-conflict interactions in bonobos Philosophical Transactions of the Royal Society B: Biological Sciences Raphaela Heesen, Diane A. Austry, Zoe Upton, Zanna Clay
2022	Laughter, play faces and mimicry in animals: evolution and social functions Philosophical Transactions of the Royal Society B: Biological Sciences Marina Davila-Ross, Elisabetta Palagi
2022	Investigating subtle changes in facial expression to assess acute pain in Japanese macaques Scientific Reports Vanessa N. Gris, Nelson Broche, Akihisa Kaneko, Munehiro Okamoto, Juri Suzuki, Daniel S. Mills, Takako Miyabe-Nishiwaki
2022	Visual bodily signals as core devices for coordinating minds in interaction Philosophical Transactions of the Royal Society B: Biological Sciences Judith Holler
2022	Playing together, laughing together: rapid facial mimicry and social sensitivity in lowland gorillas Current Zoology Chiara Bresciani, Giada Cordoni, Elisabetta Palagi
2022	Audience effect on domestic dogs’ behavioural displays and facial expressions Scientific Reports Giulia Pedretti, Chiara Canori, Sarah Marshall-Pescini, Rupert Palme, Annalisa Pelosi, Paola Valsecchi
2021	The Complexity and Phylogenetic Continuity of Laughter and Smiles in Hominids Frontiers in Psychology Marina Davila-Ross, Guillaume Dezecache
2021	Extending the MaqFACS to measure facial movement in Japanese macaques (Macaca fuscata) reveals a wide repertoire potential PLOS ONE Catia Correia-Caeiro, Kathryn Holmes, Takako Miyabe-Nishiwaki
2021	‘Puppy Dog Eyes’ Are Associated With Eye Movements, Not Communication Frontiers in Psychology Annika Bremhorst, Daniel S. Mills, Lisa Stolzlechner, Hanno Würbel, Stefanie Riemer
2021	Bodily emotional expressions are a primary source of information for dogs, but not for humans Animal Cognition Catia Correia-Caeiro, Kun Guo, Daniel Mills
2020	Scratching beneath the surface: intentionality in great ape signal production Philosophical Transactions of the Royal Society B: Biological Sciences Kirsty E. Graham, Claudia Wilke, Nicole J. Lahiff, Katie E. Slocombe
2020	Measuring the evolution of facial ‘expression’ using multi-species FACS Neuroscience & Biobehavioral Reviews B.M. Waller, E. Julle-Daniere, J. Micheletta
2020	Emotional expressions in human and non-human great apes Neuroscience & Biobehavioral Reviews Mariska E. Kret, Eliska Prochazkova, Elisabeth H.M. Sterck, Zanna Clay
2020	Morphological variants of silent bared‐teeth displays have different social interaction outcomes in crested macaques (Macaca nigra) American Journal of Physical Anthropology Peter R. Clark, Bridget M. Waller, Anne M. Burrows, Eglantine Julle‐Danière, Muhammad Agil, Antje Engelhardt, Jérôme Micheletta
2020	The ‘culture of two’: Communication accommodation in ravens’ (Corvus corax) nonvocal signaling Journal of Language Evolution Eva Maria Luef, Andries Ter Maat, Manuela Jäger, Simone Pika
2020	Behavioral and Neurophysiological Correlates of Dogs’ Individual Sensitivities to Being Observed by Their Owners While Performing a Repetitive Fetching Task Frontiers in Psychology Orsolya Kiss, Anna Kis, Katalin Scheiling, József Topál
2020	Is Conceptual Diversity an Advantage for Scientific Inquiry? A Case Study on the Concept of ‘Gesture’ in Comparative Psychology Integrative Psychological and Behavioral Science Marie Bourjade, Hélène Cochet, Sandra Molesti, Michèle Guidetti
2020	Benjamins Current Topics Katja Liebal, Linda Oña
2020	The origins of gestures and language: history, current advances and proposed theories Biological Reviews Jacques Prieur, Stéphanie Barbu, Catherine Blois‐Heulin, Alban Lemasson
2020	Must all signals be evolved? A proposal for a new classification of communicative acts WIREs Cognitive Science Marlen Fröhlich, Carel P. van Schaik
2020	Gestural communication in olive baboons (Papio anubis): repertoire and intentionality Animal Cognition Sandra Molesti, Adrien Meguerditchian, Marie Bourjade
2019	The ontogeny of intentional communication in chimpanzees in the wild Developmental Science Marlen Fröhlich, Roman M. Wittig, Simone Pika
2019	Facial Complexity in Sun Bears: Exact Facial Mimicry and Social Sensitivity Scientific Reports Derry Taylor, Daniela Hartmann, Guillaume Dezecache, Siew Te Wong, Marina Davila-Ross
2019	Gesture Use in Communication between Mothers and Offspring in Wild Orang-Utans (Pongo pygmaeus wurmbii) from the Sabangau Peat-Swamp Forest, Borneo International Journal of Primatology Andrea Knox, Joey Markx, Emma How, Abdul Azis, Catherine Hobaiter, Frank J. F. van Veen, Helen Morrogh-Bernard
2019	Emotionen Katja Liebal
2019	How primates acquire their gestures: evaluating current theories and evidence Animal Cognition Katja Liebal, Christel Schneider, Manuela Errson-Lembeck
2019	Encyclopedia of Animal Behavior Kirsty E. Graham, Catherine Hobaiter
2019	How do dogs monitor the human’s attentional state after challenged by the presence of forbidden food? Biologia Futura Orsolya Kiss, József Topál
2018	Different Approaches to Meaning in Primate Gestural and Vocal Communication Frontiers in Psychology Katja Liebal, Linda Oña
2018	Mind the gap – moving beyond the dichotomy between intentional gestures and emotional facial and vocal signals of nonhuman primates Interaction Studies. Social Behaviour and Communication in Biological and Artificial Systems Katja Liebal, Linda Oña
2017	The dot-probe task to measure emotional attention: A suitable measure in comparative studies? Psychonomic Bulletin & Review Rianne van Rooijen, Annemie Ploeger, Mariska E. Kret
2017	Rethinking primate facial expression: A predictive framework Neuroscience & Biobehavioral Reviews Bridget M. Waller, Jamie Whitehouse, Jérôme Micheletta
2017	Human attention affects facial expressions in domestic dogs Scientific Reports Juliane Kaminski, Jennifer Hynds, Paul Morris, Bridget M. Waller
2017	Great ape gestures: intentional communication with a rich set of innate signals Animal Cognition R. W. Byrne, E. Cartmill, E. Genty, K. E. Graham, C. Hobaiter, J. Tanner
2016	Social Use of Facial Expressions in Hylobatids PLOS ONE Linda Scheider, Bridget M. Waller, Leonardo Oña, Anne M. Burrows, Katja Liebal
2016	Metacommunication in social play: the meaning of aggression-like elements is modified by play face in Hanuman langurs (Semnopithecus entellus) Behaviour Marek Špinka, Marie Palečková, Milada Řeháková
2015	Chimpanzees (Pan troglodytes) Produce the Same Types of ‘Laugh Faces’ when They Emit Laughter and when They Are Silent PLOS ONE Marina Davila-Ross, Goncalo Jesus, Jade Osborne, Kim A. Bard
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