Multiple Dimensions of Semantic and Perceptual Similarity Contribute to Mnemonic Discrimination for Pictures

Autor/inn/en	Naspi, Loris; Hoffman, Paul; Devereux, Barry; Thejll-Madsen, Tobias; Doumas, Leonidas A. A.; Morcom, Alexa
Titel	Multiple Dimensions of Semantic and Perceptual Similarity Contribute to Mnemonic Discrimination for Pictures
Quelle	In: Journal of Experimental Psychology: Learning, Memory, and Cognition, 47 (2021) 12, S.1903-1923 (21 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Naspi, Loris) ORCID (Hoffman, Paul) ORCID (Devereux, Barry) ORCID (Thejll-Madsen, Tobias) ORCID (Morcom, Alexa)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-7393
DOI	10.1037/xlm0001032
Schlagwörter	Mnemonics; Memory; Semantics; Visual Perception; Recognition (Psychology); Pictorial Stimuli; Color; Young Adults; Novelty (Stimulus Dimension); Familiarity; Interference (Learning) + Suchen Sie Ihr Suchwort? Mnemotechnik; Gedächtnis; Semantik; Visuelle Wahrnehmung; Recognition; Wiedererkennen; Fantasieanregung; Colour; Farbbezeichnung; Farbe; Young adult; Junger Erwachsener
Abstract	People often misrecognize objects that are similar to those they have previously encountered. These mnemonic discrimination errors are attributed to shared memory representations (gist) typically characterized in terms of meaning. In two experiments, we investigated multiple semantic and perceptual relations that may contribute: at the concept level, a feature-based measure of concept confusability quantified each concept's tendency to activate other similar concepts via shared features; at the item level, rated item exemplarity indexed the degree to which the specific depicted objects activated their particular concepts. We also measured visual confusability over items using a computational model of vision, and an index of color confusability. Participants studied single (Experiment 1, N = 60) or multiple (Experiment 2, N = 60) objects for each basic-level concept, followed by a recognition memory test including studied items, similar lures, and novel items. People were less likely to recognize studied items with high concept confusability, and less likely to falsely recognize their lures. This points to weaker basic-level semantic gist representations for objects with more confusable concepts because of greater emphasis on coarse processing of shared features relative to fine-grained processing of individual concepts. In contrast, people were more likely to misrecognize lures that were better exemplars of their concept, suggesting that enhanced basic-level semantic gist processing increased errors due to gist across items. False recognition was also more frequent for more visually confusable lures. The results implicate semantic similarity at multiple levels and highlight the importance of perceptual as well as semantic relations. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01