Sdoia Stefano, Di Nocera Francesco, Ferlazzo Fabio
Department of Psychology, University of Rome "La Sapienza", Via dei Marsi no.78, 00185, Rome, Italy.
Cogn Process. 2019 Aug;20(3):363-369. doi: 10.1007/s10339-019-00917-y. Epub 2019 Apr 5.
Though the Corsi block-tapping task (CBT) is widely used for assessing visuospatial memory, information about what exactly it measures is still debated. We investigated such issue by observing how motor, visual, and spatial secondary tasks affect the performance on three versions of the CBT. Results showed a double dissociation pattern, wherein two motor secondary tasks had larger effects when the CBT was administered by the examiner tapping on the blocks. A spatial secondary task had larger effects when the CBT was administered by automatically illuminating the blocks. Finally, a visual secondary task had larger effects on a two-dimensional, computerized version of the CBT. These findings suggest that memory for movements plays a relevant role in the CBT, and are especially relevant due to their implications for assessment of brain-damaged patients, besides providing further evidence of a fractionation of visuospatial memory into multiple subcomponents.
尽管科西方块敲击任务（CBT）被广泛用于评估视觉空间记忆，但关于它究竟测量什么的信息仍存在争议。我们通过观察运动、视觉和空间次要任务如何影响三种版本CBT的表现来研究这个问题。结果显示出一种双重解离模式，即当由检查者敲击方块来进行CBT时，两项运动次要任务有更大影响。当通过自动照亮方块来进行CBT时，一项空间次要任务有更大影响。最后，一项视觉次要任务对二维计算机化版本的CBT有更大影响。这些发现表明，动作记忆在CBT中发挥着相关作用，并且由于它们对脑损伤患者评估的影响而特别重要，此外还为视觉空间记忆可细分为多个子成分提供了进一步证据。
