کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6206818 1265652 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A biological walker is faster and better recognized when aligned with body axis observer
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
A biological walker is faster and better recognized when aligned with body axis observer
چکیده انگلیسی


- We investigate gender recognition with a walking simulation model (Troje's model).
- We modulate the orientation of the observer and of the body observed.
- The more gender of the walking pattern was pronounced, the more performance was improved.
- The participant gender has no influence on the walking pattern recognition.
- The perception of a walking pattern is based on an egocentric coordinate system.

The representation of the vertical direction is a compromise between the directions given by the egocentric and allocentric references. Dissociations between these two referentials in the discrimination of a biological walker which typically refers to a model of verticality questions the coordinate system (allocentric and/or egocentric) used to perceive it. With a point-light display paradigm, the characteristics of an artificial walking pattern were manipulated in order to offer to 10 healthy participants (5 men/5 women; 24.6 ± 3.4 years) a female or male locomotion which had to be identified as such. The body position of the viewer (sitting/lying) and the walking pattern viewed (aligned/rotated in relation to the egocentric referential) were crossed. Three indices were analyzed and 200 trials recorded: percentage of correct identification, reaction time and confidence score. This paper confirms the validity of the walking pattern model since the more pronounced the gradient of the walking pattern (as female or male) the better the recognition. Furthermore, whatever the body position, artificial walking patterns were more easily identified when they were aligned with the egocentric referential rather than tilted. The participant gender had no influence on the walking pattern recognition. We conclude that the perception of a biological walker referenced to the vertical is exclusively improved by a representation of the spatial information in an egocentric coordinate system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gait & Posture - Volume 38, Issue 4, September 2013, Pages 981-986
نویسندگان
, , , ,