Skill and hemispheric specialization in detecting featural differences in visual images.
Skill and hemispheric specialization in detecting featural differences in visual images.
复制标题
检测视觉图像特征差异的技能和半球专业化。
DOI：
10.1006/brcg.1993.1015
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发表时间：
1993
影响因子：
2.5
通讯作者：
Hoyer,WJ
中科院分区：
文献类型：
--
作者：
Clancy,SM;Hoyer,WJ
在24名熟练的医疗技术人员和24名匹配的对照组的目标-探头匹配任务过程中，检查与技能相关的视觉不对称模式。在240次试验中，将医学实验室诊断中常见的标本的数字化副本集中显示500 msec。每个靶标之后立即跟随一个偏侧探针项目120 msec，该探针项目是靶标的精确拷贝（阳性探针）或扭曲版本（阴性探针）。目标-探针匹配的难度水平被操纵在负探针试验;一半的负项目包括困难的歧视，选择来评估特定领域的经验检测显着的形态特征的小差异的影响。医疗技术人员表现出右视野优势，但在速度或准确性方面与对照组无差异。观察到的左半球的优势，熟练的视觉处理归因于有益的影响，经验的发展领域特定的视觉分析技能。
Visual asymmetry patterns related to skill were examined during a target–probe matching task in 24 skilled medical technologists and 24 matched controls. On each of 240 test trials, digitized replicas of specimens commonly encountered in medical laboratory diagnostics were shown centrally for 500 msec. Each target was immediately followed by a lateralized probe item for 120 msec that was either an exact copy (positive probe) or a distorted version (negative probe) of the target. Difficulty level of target–probe matching was manipulated on negative probe trials; half of the negative items consisted of difficult discriminations which were selected to assess the effects of domain-specific experience on detecting small differences in salient morphological features. Medical technologists exhibited a right visual field advantage, but were not different from the control subjects in speed or accuracy to positive probes or to easy negative probes. The observed left-hemisphere advantage in skilled visual processing is attributed to the beneficial effects of experience on the development of domain-specific visual analysis skills.