Spatial Embodiment Effects of Compound Axis Rotation Experience on Mental Rotation in Adolescent Ice and Snow Athletes:An Event-Related Potentials Study
The present ERP study aimed to explain the characteristics and neural mechanism of rotation experience affecting young ice and snow athletes.Using the expert-novice paradigm,15 freestyle skiers with multi-axis body rotation experience and 15 short track speed skaters with only vertical axis rotation experience were selected to perform the mental rotation test using 3D images containing three body axes,including left-right horizontal axis,up-down vertical axis and front-posterior vertical axis,and two angles of 45 and 90.Behavioral and ERP data were recorded and analyzed.It could be seen that the judgment speed of athletes in small-angle mental rotation was faster than that in large-angle mental rotation,and the correct rate was higher.The response speed of the horizontal axis was faster than that of the vertical axis and vertical axis when the athlete rotated at a small angle.For large angle rotation,the judgment of the longitudinal axis was faster and more accurate than the other two axes.The response time of freestyle skiers performing large vertical rotation was faster than that of short track speed skaters.Compared with the short track speed skaters,freestyle skiers had shorter N1 latency,smaller P1 peak amplitude and smaller average RRN amplitude when performing vertical axis mental rotation.Compared with short track speed skaters,freestyle skiers improved the spatial embodiment process,making them able to embody each body axis to the task goal to improve task performance.
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