We present a systematic and qualitative review of academic literature on early conceptual development (0–24 months of age), with an emphasis on methodological aspects. The final sample of our review included 281 studies reported in 115 articles. The main aims of the article were four: first, to organise studies into sets according to methodological similarities and differences; second, to elaborate on the methodological procedures that characterise each set; third, to circumscribe the empirical indicators that different sets of studies consider as (...) proof of the existence of concepts in early childhood; last, to identify methodological limitations and to propose possible ways to overcome them. We grouped the studies into five sets: preference and habituation experiments, category extension tasks, object sorting tasks, sequential touching tasks and object examination tasks. In the “Results” section, we review the core features of each set of studies. In the “Discussion” and “Conclusions” sections, we describe, for one thing, the most relevant methodological shortcomings. We end by arguing that a situated, semiotic and pragmatic perspective that emphasises the importance of ecological validity could open up new avenues of research to better understand the development of concepts in early childhood. (shrink)

This paper presents the Rational Action, Noisy Choice for Habituation (RANCH) model. The model was evaluated with adult looking time collected from a paradigm analogous to the infant habituation paradigm. And the model captured key patterns of looking time documented in developmental research: habituation and dishabituation.

This special issue presents developments in research on the cognitive mechanisms and consequences of surprise. Amidst much progress, surprise research has often been siloed, so, as editors, we have sought to juxtapose insights, theories, and findings, to support cross‐fertilization in future research. The present paper sets the stage by presenting a historical summary, highlighting contrasts in definitions, and tracing major threads running through this issue and the larger surprise literature.

In general, epistemic emotions can be characterized as emotions that concern the subject's own states and mental processes and are associated with cognition and knowledge acquisition. They are the result of a cognitive inconsistency that may appear as a consequence of unexpected information that contradicts previous knowledge. They have a significant impact on the exploration and generation of knowledge about oneself and the world, as well as on conceptual changes and cognitive efficiency. There is no interspecies comparative perspective in experimental (...) studies on epistemic emotions. At first glance, this situation is not controversial, because the category of epistemic emotions has been defined in such a way that it seems to belong only to people. Inconsistencies arise when comparative research in the field of cognitive ethology, primatology or comparative psychology is analyzed. Researchers point to a number of behaviors of nonhuman animals that prove that they have a wide range of emotions - including those that stand out in the catalog of epistemic emotions, i.e. surprise, curiosity or uncertainty. The presented article is an attempt to answer the questions posed in the title and an introduction to research on an adequate model of epistemic emotions, taking into account the results of research in the above-mentioned areas. (shrink)