The impact of retro-cue validity on working memory representation : evidence from electroencephalograms
Fu, Xueying; Ye, Chaoxiong; Hu, Zhonghua; Li, Ziyuan; Liang, Tengfei; Liu, Qiang (2022-03-23)
Fu, X., Ye, C., Hu, Z., Li, Z., Liang, T., & Liu, Q. (2022). The impact of retro-cue validity on working memory representation: Evidence from electroencephalograms. Biological Psychology, 170, 108320. https://doi.org/10.1016/j.biopsycho.2022.108320
© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
https://urn.fi/URN:NBN:fi-fe2023040334621
Tiivistelmä
Abstract
Visual working memory (VWM) performance can be improved by retrospectively cueing an item. The validity of retro-cues has an impact on the mechanisms underlying the retro-cue effect, but how non-cued representations are handled under different retro-cue validity conditions is not yet clear. Here, we used electroencephalograms to investigate whether retro-cue validity can affect the fate of non-cued representations in VWM. The participants were required to perform a change-detection task using a retro-cue with 80% or 20% validity. Contralateral delay activity and the lateralized alpha power were used to assess memory storage and selective attention, respectively. The retro-cue could redirect selective attention to the cued item under both validity conditions; however, the participants maintained the non-cued representations under the low-validity condition but dropped them from VWM under the high-validity condition. These results suggest that the maintenance of non-cued representations in VWM is affected by the expectation of cue validity and may be partially strategically driven.
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