Objective

The Fist-Edge-Palm task is a motor sequencing task believed to be sensitive to frontal lobe impairment. The present study aimed to investigate the inhibitory processes underlying successful execution of this task.

Method

Seventy-two healthy participants were asked to perform the Fist-Edge-Palm task paced at 120 bpms, 60 bpms and self-paced. They also completed assessments sensitive to recently dissociated forms of inhibition (the Hayling Sentence Completion Test and the Stroop Color-Word Test) that have recently been shown to be differentially lateralized (the right and left Prefrontal Cortex, respectively), and Cattell’s Culture Fair Intelligence test.

Results

Analysis revealed that performance on the Hayling Sentence Completion Test predicted the amount of crude errors and the overall score on the Fist-Edge-Palm task, and that pacing condition had no effect on this outcome. Neither the Stroop Color-Word Test nor Cattell’s Culture Fair Intelligence Test predicted performance on the Fist-Edge-Palm task.

Conclusions

Consistent with some previous neuroimaging findings, the present findings suggest that Fist-Edge-Palm task performance relies on right lateralized inhibitory processes.

中文翻译：

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哪种类型的抑制作用可以提高Luria的“拳头-边缘-棕榈”任务的性能？

目的

Fist-Edge-Palm任务是一项运动测序任务，被认为对额叶损伤敏感。本研究旨在调查成功完成该任务的抑制过程。

方法

要求72名健康参与者以120 bpms，60 bpms和自定速度执行“拳头-棕榈”任务。他们还完成了对最近分离的抑制形式（Hayling句子完成测验和Stroop色词测验）敏感的评估，这些形式最近被证明是差异化的偏侧化（分别是右前额叶皮层和左前额叶皮层），以及Cattell的Culture Fair Intelligence测试。

结果

分析显示，Hayling句子完成测试的性能可以预测粗略错误的数量和Fist-Edge-Palm任务的总体得分，并且起搏条件对此结果没有影响。Stroop彩色文字测试和Cattell的文化公平情报测试都无法预测“拳头边缘”纸任务的性能。

结论

与以前的一些神经影像学发现一致，本研究结果表明Fist-Edge-Palm的任务表现依赖于右侧的抑制过程。