Preprints
Filtering by Subject: Biological Psychology
Why are embodied social signals concentrated towards the rostral region? — The rostrum concentration hypothesis
Published: 2026-04-09
Subjects: Behavior and Ethology, Biological Psychology, Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology, Psychology, Social and Behavioral Sciences
Although frequently embodied, the relationship of animal social communication with body layout has rarely been investigated from a unified cognitive perspective. Across animal taxa, socially relevant signals, ranging from facial expressions and gaze to colouration and morphology, are strikingly concentrated towards the anterior region of the body. Here, we propose the Rostrum Concentration [...]
Observation methods in animal behaviour: a simulation study of performance
Published: 2025-08-22
Subjects: Animal Studies, Biological Psychology, Social and Behavioral Sciences
Most behavioural studies rely on systematic samples of behaviour, as observing and recording all behavioural events that occur is rarely feasible. Choosing an observation method involves several key decisions, including which individuals to observe, how to sample their behaviour, and how to distribute sampling effort over time. These decisions influence how closely behavioural estimates reflect [...]
Human social organization during the Late Pleistocene: Beyond the nomadic-egalitarian model
Published: 2021-03-13
Subjects: Anthropology, Archaeological Anthropology, Behavior and Ethology, Biological and Physical Anthropology, Biological Psychology, Ecology and Evolutionary Biology, Evolution, Life Sciences, Physical Sciences and Mathematics, Psychology, Social and Behavioral Sciences, Social and Cultural Anthropology
Many researchers assume that until 10-12,000 years ago, humans lived in small, mobile, relatively egalitarian bands composed mostly of kin. This “nomadic-egalitarian model” informs evolutionary explanations of behavior and our understanding of how contemporary societies differ from those of our evolutionary past. Here, we synthesize research challenging this model and propose an alternative, the [...]