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Updated: Jan 9, 2026

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
Early access effects in English compound and pseudo-compound words
Thomas L Spalding1, Christina L Gagné2, Alexander Taikh3
1Department of Psychology, University of Alberta, Edmonton, AB, T6G 2E9, Canada. spalding@ualberta.ca.
Compound word processing benefits from semantic transparency, with advantages appearing later in processing. This effect is influenced by prime duration and semantic matching, unlike opaque compounds or pseudo-compounds.
Area of Science:
- Psycholinguistics
- Cognitive Science
- Computational Linguistics
Background:
- Morphemic constituents of compound words are activated during word access.
- The precise impact of these constituents on word access remains unclear.
- Understanding compound word processing is crucial for theories of language comprehension.
Purpose of the Study:
- To investigate the role of compound word morphology in word access.
- To determine how semantic transparency influences the processing of compound words.
- To examine the temporal dynamics of constituent activation in compound word recognition.
Main Methods:
- Employed a masked repetition primed lexical decision task across several experiments.
- Compared semantically transparent compounds, opaque compounds, and pseudo-compounds against controls.
- Manipulated prime durations (50, 100, and 300 ms) to assess temporal effects.
Main Results:
- Semantically transparent compounds showed processing advantages over controls.
- Opaque compounds and pseudo-compounds did not exhibit this advantage and showed less priming at longer durations.
- Compound advantages emerged at longer prime durations (300 ms) and were sensitive to semantic and morphological matching.
Conclusions:
- The processing advantage for compound words is linked to semantic transparency and appears late in the processing stream.
- This advantage is modulated by prime duration, suggesting a dynamic interaction between constituent and whole-word processing.
- The findings support models where late-stage semantic and morphological integration influences compound word recognition.
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