A negative emotional state impairs individuals’ ability to filter distractors from working memory : an ERP study
Ye, C., Liu, R., Guo, L., Zhao, G., & Liu, Q. (2024). A negative emotional state impairs individuals’ ability to filter distractors from working memory : an ERP study. Cognitive Affective and Behavioral Neuroscience, Early online. https://doi.org/10.3758/s13415-024-01166-z
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Cognitive Affective and Behavioral NeuroscienceDate
2024Copyright
© 2024 the Authors
Capacity-limited visual working memory (VWM) requires that individuals have sufficient memory space and the ability to filter distractors. Negative emotional states are known to impact VWM storage, yet their influence on distractor filtering within VWM remains underexplored. We conducted direct neural measurement of participants (n = 56) who conducted a lateralized change detection task with distractors, while manipulating the emotional state by presenting neutral or negative images before each trial. We found a detrimental effect of distractors on memory accuracy under both neutral and negative emotional states. Using the event-related potential (ERP) component, contralateral delay activity (CDA; sensitive to VWM load), to observe the VWM load in each condition, we found that in the neutral state, the participants showed significantly higher late CDA amplitudes when remembering 4 targets compared with 2 targets and 2 targets with 2 distractors but no significant difference when remembering 2 targets compared with 2 targets with 2 distractors. In the negative state, no significant CDA amplitude differences were evident when remembering 4 targets and 2 targets, but CDA was significantly higher when remembering 2 targets with 2 distractors compared with 2 targets. These results suggest that the maximum number of items participants could store in VWM was lower under negative emotional states than under neutral emotional states. Importantly, the participants could filter out distractors when in a neutral emotional state but not in a negative emotional state, indicating that negative emotional states impair their ability to filter out distractors in VWM.
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https://converis.jyu.fi/converis/portal/detail/Publication/207179296
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Research Council of FinlandFunding program(s)
Academy Research Fellow, AoFAdditional information about funding
This work was supported by grants from the National Natural Science Foundation of China (NSFC31970989), the Research Council of Finland (former Academy of Finland) Academy Research Fellow project (grant 355369), the Research Council of Finland (former Academy of Finland) Academy Professor project EmotionAI (grants 336116, 345122), and the University of Oulu & Research Council of Finland Profi 7 (grant 352788). Open Access funding provided by University of Jyväskylä (JYU). ...License
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