Scientific Institute, IRCCS E. Medea, Neuropsychiatry and Neurorehabilitation unit, Bosisio Parini, Lecco, Italy.
Scientific Institute, IRCCS E. Medea, 0-3 Centre for the at-Risk Infant, Bosisio Parini, Lecco, Italy.
Brain Cogn. 2020 Nov;145:105612. doi: 10.1016/j.bandc.2020.105612. Epub 2020 Sep 2.
Research has demonstrated that from the first six months of life infants show early sensitivity to body visual features and rely on sensorimotor and proprioceptive inputs in forming representations of their own bodies. Premature birth interferes with typical exposition to visual, sensorimotor and proprioceptive stimulation, thus presumably affecting the development of body representations. Here, we tested this hypothesis by comparing the performance of preterm children with that of age-matched full-termchildren in two tasks assessing, respectively, visual body processing and body schema. We found that preterm children had spared configural processing but altered holistic processing of others' bodies and showed a general difficulty in expressing visuospatial judgements on body stimuli. Furthermore, body-centered visuospatial abilities were associated with specific impairments in operating object-based visuospatial transformations. The findings of this study indicate that preterm birth might interfere with the development of body representations at the levels of body visual perceptual processing and of body schema, with effects even on visuo-spatial abilities for non-bodily stimuli. Body-centered rehabilitative interventions should be proposed to preterm children in order to enhance visuo-spatial abilities and higher-level cognitive functions.
研究表明,婴儿从生命的头六个月起就表现出对身体视觉特征的早期敏感性,并依靠感觉运动和本体感觉输入来形成对自己身体的代表。早产会干扰典型的视觉、感觉运动和本体感觉刺激,从而可能影响身体代表的发展。在这里,我们通过比较早产儿和年龄匹配的足月儿童在两项任务中的表现来检验这一假设,这两项任务分别评估视觉身体处理和身体图式。我们发现,早产儿在他人身体的整体处理方面存在困难,但在识别他人身体的形状和结构方面表现出了特殊的能力,并且在对身体刺激进行视觉空间判断时存在普遍的困难。此外,以身体为中心的视觉空间能力与基于对象的视觉空间转换操作的特定障碍有关。这项研究的结果表明,早产可能会干扰身体视觉感知处理和身体图式层面的身体代表的发展,甚至对非身体刺激的视觉空间能力也有影响。应该向早产儿提出以身体为中心的康复干预措施,以提高视觉空间能力和更高层次的认知功能。