Distinct dynamics of conceptual and referential disruptions in human reading and large language model processing

• URL: http://arxiv.org/abs/2608.25999v1
• Date: Wed, 26 Aug 2026 16:47:48 GMT
• Title: Distinct dynamics of conceptual and referential disruptions in human reading and large language model processing
• Abstract summary: We show that conceptual information imposes a more locally concentrated integration cost.<n>referential information engages a more distributed process of maintaining discourse-level identity.<n>Our results provide convergent evidence for distinguishable processing dynamics of two types of meaning.
• Score: 6.926648387936666
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Linguistic meaning is grounded in conceptual content, from which reference to particular entities emerges as words enter discourse. To examine the processing dynamics associated with these two dimensions of meaning, we selectively disrupted conceptual or referential information in short narratives and traced the resulting effects in human self-paced reading and in the predictive and representational processing of large language models. In human reading, conceptual disruptions produced a strong but localized processing cost, emerging immediately after the distorted word, reaching an early maximum, and then declining rapidly. Referential disruptions produced weaker effects, which decreased more gradually across subsequent words, and were more strongly modulated by sentence boundaries. In the language model, both disruptions emerged immediately at the manipulated word. Contextual model surprisal showed a pattern closely paralleling human reading: conceptual disruption produced a larger, more locally concentrated effect that decayed rapidly, whereas referential disruption produced a smaller and more gradual downstream effect. Output-layer representations showed a different pattern: referential disruption produced a larger initial displacement, while both distortions were subsequently characterized by power-law decay. Together, these results provide convergent evidence for distinguishable processing dynamics of two types of meaning: conceptual information imposes a more locally concentrated integration cost, whereas referential information engages a more distributed process of maintaining discourse-level identity.

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