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Advances in Psychological Science    2016, Vol. 24 Issue (Suppl.) : 48-     DOI:
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Distinct developmental patterns in Attentional Selection and Suppression
Meirong Sun; Encong Wang; Ye Tao; Jing Huang; Chenguang Zhao; Jialang Guo; Yan Song
State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Xinjiekouwai Street 19, Haidian District, Beijing, China, 100875
Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University, Xinjiekouwai Street 19, Haidian District, Beijing, China, 100875
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Abstract  

PURPOSE: The current study sought to identify the neurophysiological bases of development in covert spatial attention, focusing on electroencephalographic (EEG) markers of attentional selection (N2pc) and suppression (PD).
METHODS: EEG data were collected from healthy young adults (aged 19–29 years) and typically developing children (ages 9–15 years), while they searched for a shape singleton target either with the absence (Experiment 1) or presence (Experiment 2) of a task-irrelevant color singleton distractor.
RESULTS: The results showed that the lateral shape target elicited a prolonged and smaller N2pc in children (n = 25) compared to adults (n = 28) in Experiment 1. Moreover, the target-elicited N2pc was followed by a similar positivity in both children and adults. In Experiment 2, we replicated the reduced target-elicited N2pc in children. Counterintuitively, the lateral salient-but-irrelevant color distractor elicited a larger PD in children (n = 22) than in adults (n = 31). We found no evidence for a correlation between the reduced target-elicited N2pc and the increased distractor-elicit PD in children.
CONCLUSIONS: Our results provide neurophysiological evidence that covert spatial attention in children of 9-15 years old is still undergoing significant development. Compared to adults, children deploy insufficient attention resources to the targets and use more attentional suppression to resist to the silent-but-irrelevant distractors. However, the development of target selection and distractor suppression might depend on distinct cognitive mechanisms.

Keywords attentional selection      attentional suppression      development      N2pc      PD     
Issue Date: 31 December 2016
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Meirong Sun
Encong Wang
Ye Tao
Jing Huang
Chenguang Zhao
Jialang Guo
Yan Song
Cite this article:   
Meirong Sun,Encong Wang,Ye Tao, et al. Distinct developmental patterns in Attentional Selection and Suppression[J]. Advances in Psychological Science, 2016, 24(Suppl.): 48-.
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http://journal.psych.ac.cn/xlkxjz/EN/     OR     http://journal.psych.ac.cn/xlkxjz/EN/Y2016/V24/ISuppl./48
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