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|Title:||Gender identification from a point light display improves with age|
|Issue Date:||2018-08-30 17:10:08 (UTC+8)|
|Abstract:||Purpose: Examining the source of gender identification in the point light display based on the age and developmental principles. Methods: Fifty adult participants observed still pictures and dynamic videos of point light display showing human walking. The walkers in the videos consisted of 3 age groups: toddler, child, and adult. Both frontal and sagittal views of the walk were shown, each with 36 clips. Results: 1. Dynamic videos had significantly higher scores than the still pictures in identifying the walkers' gender. 2. Age and viewing direction both had significant effect on gender identification: the identification score was highest for the adult followed by the child, and then followed by the toddler; The identification score was also higher for the frontal view than the sagittal view. 3. The correlation between the identification score and consistency measure were significant in both frontal and sagittal view. Although the result of center of moment (Cm) measure did not agree with the prediction, there were other variables such as the stride length and pace in the adult group, the distance between the elbows of all age walkers, and the upper body forward angle showed some relation to the gender identification. In addition, wider distance between the knees, larger amplitude of arm swing and the forward position of the hip tended to lead to the identification as boy. Conclusion: The evidence that participants can identify gender from different viewing directions through a point light display supports the idea of the invariant property of information. The clue to gender identification via a point light display seem to have multiple sources which not only include the body segment, walking stride and pace, but also some social and cultural influence of the society. The ability of identifying different organism's characteristics from point-light display could be applied to entrance security.|
|Relation:||體育學報, Vol.41, No.3, pp.29-42|
|Appears in Collections:||[體育室] 期刊論文|
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