Abstract Harmonic word order is a well-established tendency in natural languages, which has previously been explained as a single ordering rule for all head-dependent relations. We propose that it can be more parsimoniously explained as an outcome of word-class frequencies, where the purported “head” is the most frequently instantiated word class in a phrasal schema. […]

Abstract The human capacity for sustained attention represents a critical cognitive paradox: while essential for numerous high-stakes tasks, perfect vigilance is fundamentally impossible. This commentary explores the theoretical impossibility of maintaining uninterrupted attention, drawing from extensive interdisciplinary research in cognitive science, neuroscience, and psychology. Multiple converging lines of evidence demonstrate that sustained attention is constrained […]

How does the mind represent the structure of human relationships? In a recent article, Cheng et al. address this with an interdisciplinary approach combining principal component analysis (PCA), large-scale data collection of human ratings from diverse cultures, and Large Language Model (LLM)-based analyses of historical texts. They reveal a robust 5D framework and three core […]