The challenge of studying human cognitive evolution is identifying unique features of our
intelligence while explaining the processes by which they arose. Comparisons with …

Abstract Theory of mind (ToM; aka, mind‐reading, mentalizing, mental‐state attribution, and
perspective‐taking) is the ability to ascribe mental states, such as desires and beliefs, to …

Imitation is a key mechanism of human culture and underlies many of the intricacies of
human social life, including rituals and social norms. Compared to other animals, humans …

Modern humans live in an “exploded” network with unusually large circles of trust that form
due to prosociality toward unfamiliar people (ie xenophilia). In a set of experiments we …

Chimpanzees (Pan troglodytes) and bonobos (P. paniscus) are our closest living relatives,
with the human lineage diverging from the Pan lineage only around five to seven Mya, but …

This review summarizes human perception and processing of face and gaze signals. Face
and gaze signals are important means of non-verbal social communication. The review …

A satisfactory account of human cognitive evolution will explain not only the psychological
mechanisms that make our species unique, but also how, when, and why these traits …

To understand the primate origins of the human interaction engine, it is worthwhile to focus
not only on great apes but also on callitrichid monkeys (marmosets and tamarins). Like …

Over the past 50 years there has been a strong interest in applying eye-tracking techniques
to study a myriad of questions related to human and nonhuman primate psychological …

The nature of play in animals has been long debated, but progress is being made in
characterizing play and its variants, documenting its distribution across vertebrate and …