کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6205687 1265627 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biomechanical organization of gait initiation depends on the timing of affective processing
ترجمه فارسی عنوان
سازماندهی بیومکانیک شروع راه رفتن به زمان پردازش عاطفی بستگی دارد
کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی


- We assessed the effect of affective pictures on COP and COG dynamics during gait initiation.
- Highly unpleasant pictures had an effect on initiation time, step size, APA, and COG velocity.
- The effects strongly depended on the temporal dynamic of emotion processing.

Gait initiation (GI) from a quiet bipedal posture has been shown to be influenced by the emotional state of the actor. The literature suggests that the biomechanical organization of forward GI is facilitated when pleasant pictures are shown, as compared to unpleasant pictures. However, there are inconsistencies in the literature, which could be due to the neural dynamics of affective processing. This study aimed to test this hypothesis, using a paradigm whereby participants initiated a step as soon as they saw an affective picture (i.e., onset), or as soon as the picture disappeared from the screen (i.e., offset). Pictures were a priori categorized as pleasant or unpleasant, and could also vary in their arousing properties. We analyzed center-of-pressure and center-of-gravity dynamics as a function of emotional content. We found that gait was initiated faster with pleasant images at onset, and faster with unpleasant images at offset. Also, with offset GI the peak velocity of the COG was reduced, and subjects took smaller steps, with unpleasant images relative to pleasant images. The results are discussed in terms of current knowledge regarding temporal processing of emotions, and its effects on GI.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gait & Posture - Volume 41, Issue 1, January 2015, Pages 159-163
نویسندگان
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