Do two negatives make a positive? Language and logic in language processing

I. An Tan*, Nitsan Kugler-Etinger, Yosef Grodzinsky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This study focuses on a factor known to increase sentence processing complexity–negation. We sought to distill out of negation a logical property–Inference Reversal–to see whether it, and not an actual negation word, determines this complexity. First, we tested a negation-less pair of polar operators (at most, at least) in Hebrew. We found that processing time for sentences containing the Inference Reversing at most lagged behind those with at least. Second, we compared the processing of sentences containing two Inference Reversing operators (not less) to sentences with zero (ø, more) and one (not more, less). Since two Inference Reversing Operators annul Inference Reversal (“two negatives make a positive”), we asked whether their processing cost is annulled, or rather cumulative. Surprisingly, RT not less was shorter than RT not more. These findings lead to the conclusion that even when covert, Inference Reversal is an important determinant of processing complexity.

Original languageAmerican English
Pages (from-to)1027-1043
Number of pages17
JournalLanguage, Cognition and Neuroscience
Volume38
Issue number7
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • Monotonicity
  • double negation
  • negation
  • quantifiers
  • sentence processing

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