PDF(Pubmed)
Abstract：
UNASSIGNED: Do one-eyed (uniocular) humans use monocular depth cues differently from those with intact binocularity to perform depth-related visuomotor tasks that emulate complex activities of daily living? If so, does performance depend on the participant\'s age, duration of uniocularity and head movements?
UNASSIGNED: Forty-five uniocular cases (age range 6-37 years; 2.4 months-31.0 years of uniocularity) and 46 age-similar binocular controls performed a task that required them to pass a hoop around an electrified wire convoluted in depth multiple times, while avoiding contact as indicated by auditory feedback. The task was performed with and without head restraint, in random order. The error rate and speed were calculated from the frequency of contact between the hoop and wire and the total task duration (adjusting for error time), respectively, all determined from video recordings of the task. Head movements were analyzed from the videos using face-tracking software.
UNASSIGNED: Error rate decreased with age (P < 0.001) until the late teen years while speed revealed no such trend. Across all ages, the error rate increased and speed decreased in the absence of binocularity (P < 0.001). There was no additional error reduction with duration of uniocularity (P = 0.16). Head movements provided no advantage to task performance, despite generating parallax disparities comparable to binocular viewing.
UNASSIGNED: Performance in a dynamic, depth-related visuomotor task is reduced in the absence of binocular viewing, independent of age-related performance level. This study finds no evidence for a prolonged experience with monocular depth cues being advantageous for such tasks over transient loss of binocularity.
UNASSIGNED: Forty-five uniocular cases (age range 6-37 years; 2.4 months-31.0 years of uniocularity) and 46 age-similar binocular controls performed a task that required them to pass a hoop around an electrified wire convoluted in depth multiple times, while avoiding contact as indicated by auditory feedback. The task was performed with and without head restraint, in random order. The error rate and speed were calculated from the frequency of contact between the hoop and wire and the total task duration (adjusting for error time), respectively, all determined from video recordings of the task. Head movements were analyzed from the videos using face-tracking software.
UNASSIGNED: Error rate decreased with age (P < 0.001) until the late teen years while speed revealed no such trend. Across all ages, the error rate increased and speed decreased in the absence of binocularity (P < 0.001). There was no additional error reduction with duration of uniocularity (P = 0.16). Head movements provided no advantage to task performance, despite generating parallax disparities comparable to binocular viewing.
UNASSIGNED: Performance in a dynamic, depth-related visuomotor task is reduced in the absence of binocular viewing, independent of age-related performance level. This study finds no evidence for a prolonged experience with monocular depth cues being advantageous for such tasks over transient loss of binocularity.
摘要：
■单眼（单眼）人类是否与具有完整双眼的人类使用单眼深度线索来执行与模仿日常生活复杂活动的深度相关的视觉运动任务？如果是这样，表现是否取决于参与者的年龄，单眼和头部运动的持续时间？
■45例单眼病例（年龄范围6-37岁；2.4个月-31.0年的单眼）和46例年龄相似的双目控制执行了一项任务，要求他们多次通过环绕深度弯曲的电线的环，同时避免听觉反馈所指示的接触。在有和没有头枕的情况下执行任务，以随机顺序。错误率和速度是根据环和线之间的接触频率和总任务持续时间（调整错误时间）计算的，分别,全部从任务的视频记录中确定。使用面部跟踪软件从视频中分析头部运动。
■错误率随着年龄的增长而下降（P<0.001），直到青少年后期，而速度则没有这种趋势。在所有年龄段，在没有双眼的情况下，错误率增加，速度降低（P<0.001）。随着单眼持续时间的增加，误差没有减少（P=0.16）。头部运动对任务表现没有优势，尽管产生视差差异可与双目观看相媲美。
■动态性能，在没有双目观察的情况下，深度相关的视觉运动任务会减少，与年龄相关的绩效水平无关。这项研究没有发现任何证据表明，单眼深度线索的长期经验对于此类任务比双眼性的短暂丧失更有利。
■45例单眼病例（年龄范围6-37岁；2.4个月-31.0年的单眼）和46例年龄相似的双目控制执行了一项任务，要求他们多次通过环绕深度弯曲的电线的环，同时避免听觉反馈所指示的接触。在有和没有头枕的情况下执行任务，以随机顺序。错误率和速度是根据环和线之间的接触频率和总任务持续时间（调整错误时间）计算的，分别,全部从任务的视频记录中确定。使用面部跟踪软件从视频中分析头部运动。
■错误率随着年龄的增长而下降（P<0.001），直到青少年后期，而速度则没有这种趋势。在所有年龄段，在没有双眼的情况下，错误率增加，速度降低（P<0.001）。随着单眼持续时间的增加，误差没有减少（P=0.16）。头部运动对任务表现没有优势，尽管产生视差差异可与双目观看相媲美。
■动态性能，在没有双目观察的情况下，深度相关的视觉运动任务会减少，与年龄相关的绩效水平无关。这项研究没有发现任何证据表明，单眼深度线索的长期经验对于此类任务比双眼性的短暂丧失更有利。
