Working Memory Processing and Storage Characteristics of High-level Fancy Jump Rope Athletes:A Behavioral and ERP-Based Study
Objective To investigate the behavioral and neural characteristics of working memory processing and storage in high-level synchronized jump rope athletes.Methods Fourteen high-level synchronized jump rope athletes(expert group)and 14 general physi-cal education students(novice group)were selected to examine the behavioral and electroencephalographic indices of the two groups under the 2-target(2T),2-target+2-disturbance(2T2D),and 4-target(4T)tasks by using the change awareness task and the event-related potential technique.Results 1)In the 2T and 2T2D tasks,the expert group K difference was significantly smaller than that of the novice group.In the 4T task,the expert K value was significantly higher than that of the novices.2)Under the 2T2D task,the experts induced smaller N2pc and CDA waveform amplitudes than the novices.Under the 4T task,the experts evoked larger CDA waveform amplitudes than the novices.Conclusion In the working memory processing stage,experts showed higher attentional control and allocated attentional resources to the target items,while novices were prone to focus attention on distractors resulting in decreased memory capacity.In the working memory storage phase,experts were able to maintain the storage of more item information than novices and showed higher working memory capacity.The possible mechanism for this advantage is related to the brain neural activity evoked by the expert intraparietal sulcus.
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