Cited by 725Reading and Literacy DevelopmentNeurobiology of Language and BilingualismSecond Language Acquisition and Learning

The effect of word predictability on reading time is logarithmic

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Smith, Nathaniel J., Levy, Roger·2013·Cognition

Abstract

It is well known that real-time human language processing is highly incremental and context-driven, and that the strength of a comprehender's expectation for each word encountered is a key determinant of the difficulty of integrating that word into the preceding context. In reading, this differential difficulty is largely manifested in the amount of time taken to read each word. While numerous studies over the past thirty years have shown expectation-based effects on reading times driven by lexical, syntactic, semantic, pragmatic, and other information sources, there has been little progress in establishing the quantitative relationship between expectation (or prediction) and reading times. Here, by combining a state-of-the-art computational language model, two large behavioral data-sets, and non-parametric statistical techniques, we establish for the first time the quantitative form of this relationship, finding that it is logarithmic over six orders of magnitude in estimated predictability. This result is problematic for a number of established models of eye movement control in reading, but lends partial support to an optimal perceptual discrimination account of word recognition. We also present a novel model in which language processing is highly incremental well below the level of the individual word, and show that it predicts both the shape and time-course of this effect. At a more general level, this result provides challenges for both anticipatory processing and semantic integration accounts of lexical predictability effects. And finally, this result provides evidence that comprehenders are highly sensitive to relative differences in predictability - even for differences between highly unpredictable words - and thus helps bring theoretical unity to our understanding of the role of prediction at multiple levels of linguistic structure in real-time language comprehension.

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Crossref · 10.1016/j.cognition.2013.02.013

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  • A human's ease of processing a sentence is influenced by that sentence's probability.

    “a human’s ease of processing a sentence is influenced by that sentence’s probability (66–68)”

    From Embers of autoregression show how large language models are shaped by the problem they are trained to solve (2024) · cites this paper as [67]

    The Discussion reports that word predictability affects word comprehension in context, and the paper relates that effect to reading time. It does not establish that the probability of an entire sentence affects how easily a human processes that sentence; its measured probabilities are for words in context. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 4

  1. Baayen RH Olsen S The directed compound graph of English: an exploration of lexical connectivity and its processing consequences New impulses in word-formation 2010b Vol. 17 383 402 Buske Hamburg
  2. Baayen RH Davidson DJ Bates DM Mixed-effects modeling with crossed random effects for subjects and items Journal of Memory and Language 2008a 59 4 390 412
  3. Hagoort P Baggio G Willems RM Gazzaniga MS Semantic unification The new cognitive neurosciences 2009 Vol. 4 819 836 MIT Press Boston, MA 4th ed
  4. Kennedy A Hill R Pynte J The Dundee corpus Proceedings of the 12th European conference on eye movement 2003

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Authors
Smith, N. J., & Levy, R.
Affiliations
University of California San Diego (US)
Corresponding author
Smith, Nathaniel J.
Venue
Cognition
Publisher
Elsevier BV
Published
2013-09
Volume
128
Issue
3
Pages
302-319
ISSN
0010-0277 (ISSN-L)
OpenAlex
W2108010971
Cited by
725
References
93
Citations by year
2026: 61 · 2025: 84 · 2024: 46 · 2023: 80 · 2022: 60 · 2021: 74 · 2020: 52 · 2019: 91 · 2018: 50 · 2017: 29 · 2016: 36 · 2015: 34 · 2014: 17 · 2013: 10
FWCI
66.84
Type
journal article
Language
en
Open access
Locations
  • Cognition (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Science Foundation (T32-DC000041, 0953870)
  • European Commission (270273)
  • National Institutes of Health (0953870, T32-MH20002, HD065829, DC000041)
  • National Institute of Mental Health (T32MH020002)
  • National Institute on Deafness and Other Communication Disorders (T32DC000041)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD065829)
  • FP7 Information and Communication Technologies
Topics
  • Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Social Sciences › Psychology › Developmental and Educational Psychology › Second Language Acquisition and Learning
Keywords
word predictability, reading time, lexical predictability, anticipatory processing, oculomotor control, word recognition, semantic integration, real-time language comprehension
MeSH terms
Adult, Attention, Humans, Language, Reaction Time, Reading, Time Factors, Vocabulary, Recognition, Psychology, Comprehension

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