The effect of shared distinctiveness on source memory: An event-related potential study
| Autor: | Hong Hanh Pham, Timm Rosburg, Michael Weigl, Axel Mecklinger |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Illusory correlation Concept Formation Memory Episodic Cognitive Neuroscience media_common.quotation_subject Article 050105 experimental psychology Source memory Young Adult 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Event-related potential Perception Subsequent memory effect Humans Distinctiveness 0501 psychology and cognitive sciences P300 Valence (psychology) Empirical evidence Episodic memory Accentuation media_common Psycholinguistics 05 social sciences Electroencephalography Recognition Psychology Event-Related Potentials P300 Uncorrelated Affect Pattern Recognition Visual Reading Mental Recall Female Optimal distinctiveness theory Psychology Color Perception 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Cognitive, Affective & Behavioral Neuroscience |
| ISSN: | 1531-135X 1530-7026 |
| Popis: | An illusory correlation (IC) is the erroneous perception that two actually uncorrelated categories are correlated. The Shared Distinctiveness Approach (SDA) explains ICs with heightened accessibility of distinctive category combinations in episodic memory. However, empirical evidence for this approach is heterogeneous. In the present event-related potential (ERP) study, we exploited the fact that more distinctive items elicit larger P300 responses than less distinctive items, which potentially predict subsequent memory performance differences for such items. Distinctiveness at encoding was created by presenting words that differed from frequently presented, positive words in valence, font color, or both. We hypothesized that shared distinctiveness (deviation in both color and valence) would lead to an enhanced P300 subsequent memory effect (SME), better source memory performance, and an overestimation of the frequency of shared distinctive items. Behavioral results indicated the presence of shared distinctiveness effects on source memory and frequency estimation. Unexpectedly, memory also was enhanced for positive items in the frequent color. This pattern also was reflected in the P300 for highly positive and negative items. However, shared distinctiveness did not modulate the P300 SME, indicating that the processing of distinctive features might only indirectly contribute to better encoding. This study shows that shared distinctiveness indeed is associated with better source memory and ICs. Because effects were observed for the most frequent and the least frequent category combination, our results imply that the processing of distinctiveness might involve attention allocation to diametrical category combinations, thereby accentuating the differences between the categories. Electronic supplementary material The online version of this article (10.3758/s13415-020-00817-1) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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