Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Departamento de Neuropsicología, Av. Insurgentes Sur 3877, Col. La Fama, Mexico DF 14269, Mexico.
San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, 6363 Alvarado Court, Suite 103, San Diego, CA 92120, United States.
Brain Cogn. 2014 Feb;84(1):164-9. doi: 10.1016/j.bandc.2013.11.010. Epub 2013 Dec 31.
Complex movement (CM) refers to the representation of a goal-oriented action and is classified as either transitive (use of tools) or intransitive (communication gestures). Both types of CM have three specific components: temporal, spatial, and content, which are subdivided into specific error types (SET). Since there is debate regarding the contribution of each brain hemisphere for the types of CM, our objective was to describe the brain lateralization of components and SET of transitive and intransitive CM. We studied 14 patients with a left hemisphere stroke (LH), 12 patients with a right hemisphere stroke (RH), and 16 control subjects. The Florida Apraxia Screening Test-Revised (FAST-R, Rothi et al., 1988) was used for the assessment of CM. Both clinical groups showed a worse performance than the control group on the total FAST-R and transitive movement scores (p<0.001). Failures in Spatial and Temporal components were found in both clinical groups, but only LH patients showed significantly more Content errors (p<0.01) than the control group. Also, only the LH group showed a higher number of errors for intransitive movements score (p=0.017), due to lower scores in the content component, compared to the control group (p=0.04). Transitive and intransitive CMs differ in their neurocognitive representation; transitive CM shows a bilateral distribution of its components when compared to intransitive CM, which shows a preferential left hemisphere representation. This could result from higher neurocognitive demands for movements that require use of tools, compared with more automatic communication gestures.
复杂运动（CM）是指有目标导向动作的表现，可以分为及物（使用工具）或不及物（沟通手势）。这两种类型的 CM 都有三个特定的组成部分：时间、空间和内容，它们被细分为特定的错误类型（SET）。由于关于每个大脑半球对 CM 类型的贡献存在争议，我们的目标是描述及物和不及物 CM 的组成部分和 SET 的大脑偏侧化。我们研究了 14 名左半球中风患者（LH）、12 名右半球中风患者（RH）和 16 名对照组。佛罗里达失用症筛查测试修订版（FAST-R，Rothi 等人，1988）用于评估 CM。两个临床组在 FAST-R 总评分和及物运动评分上的表现均劣于对照组（p<0.001）。两个临床组均出现空间和时间成分的失误，但只有 LH 患者的内容错误明显多于对照组（p<0.01）。此外，只有 LH 组的非言语 CM 运动评分的错误数更高（p=0.017），这是由于与对照组相比，内容成分的得分较低（p=0.04）。及物和非言语 CM 在其神经认知表现上存在差异；与非言语 CM 相比，及物 CM 的组成部分呈双侧分布，而后者表现出对左侧半球的偏好。这可能是由于需要使用工具的运动对神经认知的要求更高，而与更自动的沟通手势相比。
