REPORT Active Iterative Social Inference in Multi-Trial Signaling Games Asya Achimova1,2 , Gregory Scontras3, Ella Eisemann4, and Martin V. Butz1,5 1Research Training Group 1808 “Ambiguity: Production and Perception”, University of Tübingen, Tübingen, Germany 2Department of General and Computational Linguistics, University of Tübingen, Tübingen, Germany 3Department of Language Science, University of California, Irvine, USA 4Institute of Vocational Education and Work Studies, Technische Universität Berlin, Berlin, Germany

REPORT Competition Between Object Topology and Surface Features in Children’s Extension of Novel Nouns Praveen Kenderla1, Sung-Ho Kim2, and Melissa M. Kibbe1 1Department of Psychological & Brain Sciences, Boston University, Boston, MA 2Department of Psychology, Ewha Womans University, Seoul, South Korea a n o p e n a c c e s s j o u r n a l Keywords: topology, inference, word learning,

REPORT Latent Diversity in Human Concepts Louis Marti , Shengyi Wu , Steven T. Piantadosi , and Celeste Kidd University of California, Berkeley, Berkeley, CA Keywords: concepts, metacognition, individual differences, ordinary meaning a n o p e n a c c e s s j o u r n a l ABSTRACT Many social and legal conflicts hinge on semantic disagreements. Understanding the origins and

REPORT Grammatical Perspective-Taking in Comprehension and Production Carolyn Jane Anderson1 and Brian Dillon2 1Department of Computer Science, Wellesley College, Wellesley, USA 2Department of Linguistics, University of Massachusetts Amherst, Amherst, USA a n o p e n a c c e s s j o u r n a l ABSTRACT Keywords: perspective, cognitive modeling, Rational Speech Acts, motion verbs Language use in conversation requires conversation

REPORT Zipfian Distributions in Child-Directed Speech Ori Lavi-Rotbain1 and Inbal Arnon2 1The Edmond and Lilly Safra Center for Brain Sciences, Hebrew University, Jerusalem, Israel 2Department of Psychology, Hebrew University, Jerusalem, Israel Keywords: Child-Directed Speech, Zipfian distribution, language learning a n o p e n a c c e s s j o u r n a l ABSTRACT Across languages, word frequency and rank follow

REPORT Modeling Individual Differences in Children’s Information Integration During Pragmatic Word Learning Manuel Bohn1 , Louisa S. Schmidt2 , Cornelia Schulze2,3 , Michael C. Frank4 , and Michael Henry Tessler5,6 1Department of Comparative Cultural Psychology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany 2Leipzig Research Center for Early Child Development, Leipzig University, Leipzig, Germany 3Department of Educational Psychology, Faculty of Education, Leipzig University, Leipzig, Germany

REPORT Representations of Abstract Relations in Infancy Jean-Rémy Hochmann1,2 1CNRS UMR5229 – Institut des Sciences Cognitives Marc Jeannerod, 67 Boulevard Pinel, 69675, Bron, France 2Université Lyon 1 Claude Bernard, France Keywords: abstract relations, infants, language of thought a n o p e n a c c e s s j o u r n a l ABSTRACT Abstract relations are considered the pinnacle of human

REPORT Expectancy Effects Threaten the Inferential Validity of Synchrony-Prosociality Research S. Atwood1 , Adena Schachner2* , and Samuel A. Mehr3,4* 1Department of Psychology, Princeton University, Princeton, NJ 08540 USA 2Department of Psychology, University of California San Diego, La Jolla, CA 92093-0109 USA 3Haskins Laboratories, Yale University, New Haven, CT 06511 USA 4School of Psychology, University of Auckland, Auckland 1010, New Zealand *These authors contributed equally.

REPORT Emerging Self-Representation Presents a Challenge When Perspectives Conflict Emanuela Yeung , Dimitrios Askitis, Velisar Manea, and Victoria Southgate Department of Psychology, University of Copenhagen Keywords: infancy, pupillometry, perspective tracking, self, inhibition a n o p e n a c c e s s j o u r n a l ABSTRACT The capacity to take another’s perspective appears to be present from early in

REPORT Simplification Is Not Dominant in the Evolution of Chinese Characters Simon J. Han1, Piers Kelly2, James Winters3, and Charles Kemp1 1Melbourne School of Psychological Sciences, University of Melbourne, Parkville, Australia 2Department of Archaeology, Classics and History, University of New England, Armidale, Australia 3School of Collective Intelligence, Mohammed VI Polytechnic University, Rabat, Morocco a n o p e n a c c e s s

REPORT Dangerous Ground: One-Year-Old Infants are Sensitive to Peril in Other Agents’ Action Plans Shari Liu1,2,6* , Bill Pepe3,6*, Manasa Ganesh Kumar4*, Tomer D. Ullman5,6, Joshua B. Tenenbaum1,2, and Elizabeth S. Spelke5,6 1Department of Brain and Cognitive Sciences, MIT 2Department of Psychological and Brain Sciences, Johns Hopkins University 3Department of Psychology, University of California San Diego 4Department of Psychology, University of Bath 5Department of Psychology,

REPORT A Reappraisal of Dependency Length Minimization as a Linguistic Universal Himanshu Yadav1 , Shubham Mittal2, and Samar Husain3 1Department of Linguistics, University of Potsdam, Germany 2Department of Chemical Engineering, Indian Institute of Technology Delhi, India 3Department of Humanities and Social Sciences, Indian Institute of Technology Delhi, India a n o p e n a c c e s s j o u r n

REPORT Neural Networks Track the Logical Complexity of Boolean Concepts Fausto Carcassi1 and Jakub Szymanik2 1Seminar für Sprachwissenschaft, Tübingen, Germany 2Institute for Logic, Language, and Computation, Universiteit van Amsterdam, Amsterdam, Netherlands Keywords: artificial neural networks, Boolean complexity, category acquisition a n o p e n a c c e s s j o u r n a l ABSTRACT The language of thought hypothesis and

REPORT Bilingualism Affects Infant Cognition: Insights From New and Open Data Rodrigo Dal Ben* , Hilary Killam , Sadaf Pour Iliaei* , and Krista Byers-Heinlein *Rodrigo Dal Ben is now at Ambrose University, Calgary. Sadaf Pour Iliaei is now at the Ontario Institute for Studies in Education, University of Toronto. Concordia University a n o p e n a c c e s s j

REPORT Social Prevalence Is Rationally Integrated in Belief Updating Evan Orticio , Louis Martí, and Celeste Kidd Department of Psychology, University of California, Berkeley Keywords: belief change, belief prevalence, misinformation, cue integration a n o p e n a c c e s s j o u r n a l ABSTRACT People rely on social information to inform their beliefs. We ask whether and

REPORT Morpheme Ordering Across Languages Reflects Optimization for Processing Efficiency Michael Hahn1,3, Rebecca Mathew2, and Judith Degen1 1Department of Linguistics, Stanford University 2Department of Cognitive, Linguistic, and Psychological Sciences (CLPS), Brown University 3SFB 1102, Saarland University a n o p e n a c c e s s j o u r n a l Keywords: language universals, morphology, information theory l D o w

REPORT Seeing the World From Others’ Perspective: 14-Month-Olds Show Altercentric Modulation Effects by Others’ Beliefs Dora Kampis1,2 and Ágnes Melinda Kovács1 1Department of Psychology, University of Copenhagen, Denmark 2Department of Cognitive Science, Central European University, Budapest, Hungary/ Vienna, Austria a n o p e n a c c e s s j o u r n a l Keywords: altercentrism, infants, manual search, object representation,

REPORT Infants Learn to Follow Gaze in Stages: Evidence Confirming a Robotic Prediction Priya Silverstein1,2 , Jinzhi Feng1,3, Gert Westermann1, Eugenio Parise1,4, and Katherine E. Twomey5 1Psychology Department, Lancaster University, UK 2Institute for Globally Distributed Open Research and Education 3School of Psychology and Neuroscience, University of St Andrews, UK 4CIMeC, Center for Mind/ Brain Sciences, University of Trento, Italy 5Division of Human Communication, Development and