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The role of distractors in rapid serial visual presentation reveals the mechanism of attentional blink by EEG-based univariate and multivariate analyses.
Meng, Zong; Chen, Qi; Zhou, Liqin; Xu, Liang; Chen, Antao.
Afiliación
  • Meng Z; Beijing Key Laboratory of Applied Experimental Psychology, Faculty of Psychology, Beijing Normal University, Beijing 100875, China.
  • Chen Q; Key Laboratory of Cognition and Personality of Ministry of Education, Faculty of Psychology, Southwest University, Chongqing 400715, China.
  • Zhou L; Center for Brain and Mental Well-Being, Department of Psychology, Sun Yat-sen University, Guangzhou 510006, China.
  • Xu L; Beijing Key Laboratory of Applied Experimental Psychology, Faculty of Psychology, Beijing Normal University, Beijing 100875, China.
  • Chen A; Key Laboratory of Cognition and Personality of Ministry of Education, Faculty of Psychology, Southwest University, Chongqing 400715, China.
Cereb Cortex ; 33(21): 10761-10769, 2023 10 14.
Article en En | MEDLINE | ID: mdl-37702253
ABSTRACT
Attentional blink pertains to the performance of participants with a severe decline in identifying the second target presented after the first target reported correctly within 200-500 ms in a rapid serial visual presentation. The current study was conducted to investigate the neural mechanism of the effect of the distractor (D1) that immediately follows first target to attentional blink by altering whether D1 was substituted with a blank with electroencephalography recording. The results showed that D1 interfered with the attentional enhancement and working memory encoding in both single-target rapid serial visual presentation task and dual-target rapid serial visual presentation task, which were mainly manifested in delayed and attenuated P3a and diminished P3b of first target. Single-trial analysis indicated that first target and second target will compete with each other for working memory encoding resources in short lag, but not in the long lag. In addition, D1 interfered with the working memory encoding of second target under short lag rather than long lag in the dual-target rapid serial visual presentation task. These results suggested that attentional blink can be attributed to the limited working memory encoding resource, whereas the amount of available resources is subject to modulation by attention. The D1 hinders the attention enhancement of first target, thereby exacerbating attentional blink.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Parpadeo Atencional Límite: Humans Idioma: En Revista: Cereb Cortex Asunto de la revista: CEREBRO Año: 2023 Tipo del documento: Article País de afiliación: China

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Parpadeo Atencional Límite: Humans Idioma: En Revista: Cereb Cortex Asunto de la revista: CEREBRO Año: 2023 Tipo del documento: Article País de afiliación: China
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