Associative Memory Updates in Language Models Predict Human Reading Times

Christian Clark, William Schuler


Abstract
The self-attention mechanism used in transformer language models implements a form of associative, cue-based memory retrieval, which has been argued to resemble human sentence processing. However, while it is well established that surprisal estimates from transformers are predictive of human comprehension difficulty, it has been less clear how these models’ internal memory operations might relate to human sentence processing. We propose to connect the two by measuring transformers’ associative memory updates, which are calculated as the difference between each word’s predicted and actual representation within self-attention. We compute memory updates from three types of language models: (1) standard transformers; (2) CBR-RNN, a cognitively motivated model using a single self-attention head; and (3) CBR-RNN-M, a novel architecture that replaces the self-attention in CBR-RNN with a bounded-size memory cell. Associative memory updates are found to predict naturalistic human reading times over and above surprisal baselines on several psycholinguistic corpora, with evidence for more consistent effects from CBR-RNN and CBR-RNN-M than from standard transformers.
Anthology ID:
2026.findings-emnlp.347
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2026
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
Findings
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SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
7267–7279
Language:
URL:
https://aclanthology.org/2026.findings-emnlp.347/
DOI:
Bibkey:
Cite (ACL):
Christian Clark and William Schuler. 2026. Associative Memory Updates in Language Models Predict Human Reading Times. In Findings of the Association for Computational Linguistics: EMNLP 2026, pages 7267–7279, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Associative Memory Updates in Language Models Predict Human Reading Times (Clark & Schuler, Findings 2026)
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PDF:
https://aclanthology.org/2026.findings-emnlp.347.pdf