Human cognitive architecture shares universal core mechanisms across all diverse cultural populations.
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Peer-reviewed sources provide theoretical frameworks and preliminary evidence regarding universal dimensional architecture, communication principles, and systematicity across distinct cultural groups.
The present study points to several potentially universal principles of human communication. Pairs of participants, sampled from culturally and linguistically distinct societies (Western and Japanese, N = 108: 16 Western-Western, 15 Japanese-Japanese and 23 Western-Japanese dyads), played a dyadic communication game in which they tried to communicate a range of experimenter-specified items to a partner by drawing, but without speaking or using letters or numbers. This paradigm forced participants to create a novel communication system. A range of similar communication behaviors were observed among the within-culture groups (Western-Western and Japanese-Japanese) and the across-culture group (Western-Japanese): They (a) used iconic signs to bootstrap successful communication, (b) addressed breakdowns in communication using other-initiated repairs, (c) simplified their communication behavior over repeated social interactions, and (d) aligned their communication behavior over repeated social interactions. While the across-culture Western-Japanese dyads found the task more challenging, and cultural differences in communication behavior were observed, the same basic findings applied across all groups. Our findings, which rely on two distinct cultural and linguistic groups, offer preliminary evidence for several universal principles of human communication.
Version 3 update (May 2026): This version includes refined theoretical framing, clarified scope of the universality claim, expanded falsifiability criteria, and additional clarifications throughout. The core theoretical framework remains unchanged from Version 2.This theoretical framework proposes that what psychiatry classifies as schizophrenia-spectrum, bipolar-spectrum, and autism-spectrum disorders are not rare, discrete pathologies, but reflect universal human dimensions that become clinically significant under specific environmental and cognitive conditions. Across more than 5,000 individuals observed in diverse contexts, each individual observed expressed at least two dimensions in combination. Isolated single-dimension or zero-dimension profiles were not detected.These three spectra are proposed as core dimensional systems of the human mind:Dimension X (Perceptual-Ideational): Governs perceptual and ideational processing style, ranging from mild expression through moderate to severe. This dimensional architecture shares biological and genetic substrates with what psychiatry diagnoses as schizophrenia-spectrum disorders.Dimension Y (Social-Cognitive): Governs social-cognitive processing style, ranging from mild expression through moderate to severe. This dimensional architecture shares biological and genetic substrates with what psychiatry diagnoses as autism-spectrum disorders.Dimension Z (Affective-Energetic): Governs affective intensity and energy regulation, rangin
Cognitive science recognizes two kinds of systematicity: (1) as the property where certain cognitive capacities imply certain other related cognitive capacities (Fodor and Pylyshyn); and (2) as the principle that analogical mappings based on collections of connected relations are preferred over relations in isolation (Gentner). Whether these kinds of systematicity are two aspects of a deeper property of cognition is hitherto unknown. Here, it is shown that both derive from the formal, category-theoretic notion of universal construction. In conceptual/psychological terms, a universal constructi
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