کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5045404 1475559 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Asymmetry in visual information processing depends on the strength of eye dominance
ترجمه فارسی عنوان
عدم تقارن در پردازش اطلاعات بصری بستگی به قدرت سلطه چشم دارد
کلمات کلیدی
غلبه بر چشم، قدرت سلطه لنز زدن مغز، زمان پاسخ، عدم تقارن بصری،
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
چکیده انگلیسی


- Influence of eye dominance and its strength were examined in a visuo-motor task.
- Strong-eye dominant people showed a speed advantage for the contralateral hemifield.
- Weak-eye dominant people showed no difference between the two hemifields.
- Eye dominance and its strength are sources of variation in visuo-motor performance.
- Saccades recording is an effective tool to characterize the eye dominance strength.

Unlike handedness, sighting eye dominance, defined as the eye unconsciously chosen when performing monocular tasks, is very rarely considered in studies investigating cerebral asymmetries. We previously showed that sighting eye dominance has an influence on visually triggered manual action with shorter reaction time (RT) when the stimulus appears in the contralateral visual hemifield with respect to the dominant eye (Chaumillon et al. 2014). We also suggested that eye dominance may be more or less pronounced depending on individuals and that this eye dominance strength could be evaluated through saccadic peak velocity analysis in binocular recordings (Vergilino-Perez et al. 2012). Based on these two previous studies, we further examine here whether the strength of the eye dominance can modulate the influence of this lateralization on manual reaction time. Results revealed that participants categorized as having a strong eye dominance, but not those categorized as having a weak eye dominance, exhibited the difference in RT between the two visual hemifields. This present study reinforces that the analysis of saccade peak velocity in binocular recordings provides an effective tool to better categorize the eye dominance. It also shows that the influence of eye dominance in visuo-motor tasks depends on its strength. Our study also highlights the importance of considering the strength of eye dominance in future studies dealing with brain lateralization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuropsychologia - Volume 96, February 2017, Pages 129-136
نویسندگان
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