Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese

Diego Alves

doi:10.63317/52bkiy5jm2iw

Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese

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Abstract

This study uses regression analysis of Brazilian Portuguese eye-tracking data to examine variability in reading times across grammatical categories. Mixed-effects models reveal distinct patterns: numerals elicit high individual variability in early-stage reading, while function words (e.g., adpositions, determiners) drive differences in late-stage integration. In contrast, nouns show stable effects. These findings demonstrate that individual differences in reading are systematically linked to specific parts of speech, with numerals and function words as key loci of variability.

Anthology ID:: 2026.gaze4nlp-1.5
Volume:: Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned NLP
Month:: May
Year:: 2026
Address:: Palma de Mallorca, Spain
Editors:: Cengiz Acartürk, Burcu Can, Jamal Nasir, Çağrı Çöltekin
Venues:: Gaze4NLP | WS
SIG:
Publisher:: ELDA
Note:
Pages:: 30–34
Language:
External URL:: https://lrec.elra.info/lrec2026-ws-gaze4nlp-05
DOI:: 10.63317/52bkiy5jm2iw
Bibkey:
Cite (ACL):: Diego Alves. 2026. Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese. In Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned NLP, pages 30–34, Palma de Mallorca, Spain. ELDA.
Cite (Informal):: Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese (Alves, Gaze4NLP 2026)
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@inproceedings{alves-2026-parts,
    title = "Parts of Speech Shape Reading-Time Variability in {B}razilian {P}ortuguese",
    author = "Alves, Diego",
    editor = {Acart{\"u}rk, Cengiz  and
      Can, Burcu  and
      Nasir, Jamal  and
      {\c{C}}{\"o}ltekin, {\c{C}}a{\u{g}}r{\i}},
    booktitle = "Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned {NLP}",
    month = may,
    year = "2026",
    address = "Palma de Mallorca, Spain",
    publisher = "ELDA",
    url = "https://aclanthology.org/2026.gaze4nlp-1.5/",
    doi = "10.63317/52bkiy5jm2iw",
    pages = "30--34",
    abstract = "This study uses regression analysis of Brazilian Portuguese eye-tracking data to examine variability in reading times across grammatical categories. Mixed-effects models reveal distinct patterns: numerals elicit high individual variability in early-stage reading, while function words (e.g., adpositions, determiners) drive differences in late-stage integration. In contrast, nouns show stable effects. These findings demonstrate that individual differences in reading are systematically linked to specific parts of speech, with numerals and function words as key loci of variability."
}

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%0 Conference Proceedings
%T Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese
%A Alves, Diego
%Y Acartürk, Cengiz
%Y Can, Burcu
%Y Nasir, Jamal
%Y Çöltekin, Çağrı
%S Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned NLP
%D 2026
%8 May
%I ELDA
%C Palma de Mallorca, Spain
%F alves-2026-parts
%X This study uses regression analysis of Brazilian Portuguese eye-tracking data to examine variability in reading times across grammatical categories. Mixed-effects models reveal distinct patterns: numerals elicit high individual variability in early-stage reading, while function words (e.g., adpositions, determiners) drive differences in late-stage integration. In contrast, nouns show stable effects. These findings demonstrate that individual differences in reading are systematically linked to specific parts of speech, with numerals and function words as key loci of variability.
%R 10.63317/52bkiy5jm2iw
%U https://aclanthology.org/2026.gaze4nlp-1.5/
%U https://doi.org/10.63317/52bkiy5jm2iw
%P 30-34

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Markdown (Informal)

[Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese](https://aclanthology.org/2026.gaze4nlp-1.5/) (Alves, Gaze4NLP 2026)

Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese (Alves, Gaze4NLP 2026)

ACL

Diego Alves. 2026. Parts of Speech Shape Reading-Time Variability in Brazilian Portuguese. In Proceedings fo the Second International Workshop on Eye-Tracking Resources and Evaluation for Human-Aligned NLP, pages 30–34, Palma de Mallorca, Spain. ELDA.