The Influence Of Cross-modal Information Matching On Dual-task Processing In Dynamic Tracking

Objective:In everyday life,people often need to deal with complex tasks from multiple sensory channels simultaneously,and the relationship between sensory modalities information will also affect people’s processing of information from different modalities.Football is in a complex and changeable visual environment.At the same time,athletes also need to combine the auditory information on the field to make sports decisions.This study used a dual-task paradigm that combined multiple identity tracking and auditory working memory to explore the impact of cross-modal information matching on the performance of the two tasks,and examined the impact of tracking task types and auditory task load on the matching effect,and investigated the differences between football players and ordinary college students in the performance of cross-modal information processing tasks.Methods:Experiment 1 explored the effects of auditory information matching and auditory working memory load on visual tracking tasks and auditory tasks in a multiple identity tracking task that participants only need to focus on the target location.The experiment employed a 2(auditory WM load:low,high)X 3(matching type:target matching,interference matching,irrelevant matching)within-subjects design.The dependent variables were the accuracy and response time of the MIT task and the auditory WM task.Experiment 2 continued to explore the impact of auditory information matching and auditory working memory load on visual tracking tasks and auditory tasks in multiple identity tracking task that participants need to focus on target location and identity information at the same time.Ordinary college students were selected as experimental participants for experiment 2a,and football players were selected for experiment 2b.Results:In experiment 1,there was no significant difference in the performance of the location MIT task under different matching and auditory load conditions.At the same time,the matching did not affect the performance of the auditory working memory task.It showed that there was no promotion or interference effect of cross-modal information matching on the location MIT task and auditory task.In experiment 2a,under the condition of matching auditory information and visual tracking target stimuli,the performance of both tasks was significantly better than other conditions(F(2,60)=4.408,p=.016,ηp2=.128;F(2,60)=35.673,p<.001,ηp2=.543),indicating that the information matching promoted the audiovisual dual-task processing,and auditory load had no significant effect on matching.The results of experiment 2b was the same as experiment 2a(F(2,54)=6.970,p=.002,ηp2=.205;F(2,54)= 39.902,p<.00],ηp2=.596),indicating that the promotion effect brought by matching was consistent across the population.However,there was no significant difference between football players and ordinary college students in the audiovisual dual tasks,indicating that football players did not show obvious advantages in complex dynamic tracking tasks.Conclusion:(1)The matching of semantic information in audiovisual tasks promoted the identification of visual tracking targets and auditory WM.Compared with other conditions,the dual-task performance was significantly improved,indicating the integration of audiovisual information in dynamic tracking.(2)Auditory information matching had a separate effect on location tracking and identity recognition.Only identity processing was sensitive to auditory WM information,and location tracking was not.It indicated that ’where’ information and’what’ information were independent of each other,and target location information and identity information may be stored separately.(3)The impact of auditory load on dual tasks was asymmetry.Visual tasks were not affected by auditory load,but the accuracy of auditory tasks was significantly reduced under high load conditions,especially when auditory letters were not visual targets.It showed that subjects preferred visual information when allocating resources,and the attention resources of different sensory modals may be separated.(4)There was also a promotion of cross-modal information matching among football players.But compared with ordinary college students,the main group effect was not significant,indicating that the promotion effect was consistent in different groups.