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The Deese/Roediger–McDermott (DRM) illusion in short-term memory: Opposite effects of retention interval on true and false recognition

Guillermo Campoy, María D. Linde, Esteban A. Hidalgo, Miriam Tortajada and 3 more

Memory & Cognition | Jun 11, 2026

Abstract

Abstract

A short-term memory (STM) version of the Deese/Roediger-McDermott (DRM) paradigm was employed to investigate how true and false recognition evolved as STM contents were lost over a short time window immediately after initial encoding. Presentations of five-word DRM lists were followed by list-specific recognition tests applied either immediately or after a distractor-filled retention interval of 3, 9, or 27 s. Results showed a decrease in the probability of true recognition and an increase in the probability of false recognition as the retention interval grew longer. Based on the fuzzy-trace theory, we suggest that this pattern emerged from the different durability of item-specific phonological representations, which would play a dual role of supporting true memory and preventing false recognition, and integrative semantic representations, whose overlap with the critical items would give rise to the DRM illusion. As a further contribution, our study helps to establish the DRM illusion in STM as a genuine and robust phenomenon by showing that it can be observed even with no delay and no intervening distraction between study and test, and that it occurs when participants are explicitly warned about the presence of semantically related distractors and instructed not to be misled by them.

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Authors

Researchers on this paper

Guillermo Campoy

first | Universidad de Murcia | ORCID 0000-0002-3532-9178

María D. Linde

middle | Universidad de Murcia | ORCID 0000-0002-4752-7817

Esteban A. Hidalgo

middle | Universidad de Murcia | ORCID 0009-0009-3658-0071

Miriam Tortajada

middle | Universidad de Murcia | ORCID 0000-0002-3871-8283

Lucía B. Palmero

middle | Universidad de Murcia | ORCID 0000-0001-5693-6500

Víctor Martínez‐Pérez

middle | Universidad de Murcia | ORCID 0000-0003-0358-346X

Luis J. Fuentes

last | Universidad de Murcia | ORCID 0000-0002-3203-9976

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Citation

BibTeX

@article{Campoy2026Deese,
  title = {The Deese/Roediger–McDermott (DRM) illusion in short-term memory: Opposite effects of retention interval on true and false recognition},
  author = {Guillermo Campoy and María D. Linde and Esteban A. Hidalgo and Miriam Tortajada and Lucía B. Palmero and Víctor Martínez‐Pérez and Luis J. Fuentes},
  journal = {Memory & Cognition},
  year = {2026},
  doi = {10.3758/s13421-026-01881-7},
  url = {https://doi.org/10.3758/s13421-026-01881-7}
}

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