What type of inhibition underpins performance on Luria's Fist-Edge-Palm task?. Issue 6 (2nd July 2020)

• Record Type: Journal Article
• Authors: Varkovetski, Michael; Pihkanen, Kaisla; Shanker, Shanti; Parris, Benjamin A.; Gurr, Birgit
• Is Part Of: Journal of clinical and experimental neuropsychology. Volume 42:Issue 6(2020)
• Page Start: 544
• Page End: 555
• Publication Date: 2020-07-02
• Subjects: Luria test -- Fist-Edge-Palm -- executive function -- prefrontal cortex -- motor sequencing; Neuropsychology -- Periodicals; Psychophysiology -- Periodicals; Neurosciences -- Periodicals; Psychophysiology -- Periodicals; Societies, Medical -- Periodicals; 616.89
• DOI: 10.1080/13803395.2020.1776846
• Languages: English
• ISSNs: 1380-3395

Abstract

ABSTRACT: 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.