Article contents
Impaired Comprehension of Speed Verbs in Parkinson’s Disease
Published online by Cambridge University Press: 19 April 2017
Abstract
Objectives: A wealth of studies provide evidence for action simulation during language comprehension. Recent research suggests such action simulations might be sensitive to fine-grained information, such as speed. Here, we present a crucial test for action simulation of speed in language by assessing speed comprehension in patients with Parkinson’s disease (PD). Based on the patients’ motor deficits, we hypothesized that the speed of motion described in language would modulate their performance in semantic tasks. Specifically, they would have more difficulty processing language about relatively fast speed than language about slow speed. Methods: We conducted a semantic similarity judgment task on fast and slow action verbs in patients with PD and age-matched healthy controls. Participants had to decide which of two verbs most closely matched a target word. Results: Compared to controls, PD patients were slower making judgments about fast action verbs, but not for judgments about slow action verbs, suggesting impairment in processing language about fast action. Moreover, this impairment was specific to verbs describing fast action performed with the hand. Conclusions: Problems moving quickly lead to difficulties comprehending language about moving quickly. This study provides evidence that speed is an important part of action representations. (JINS, 2017, 23, 412–420)
- Type
- Research Articles
- Information
- Journal of the International Neuropsychological Society , Volume 23 , Issue 5 , May 2017 , pp. 412 - 420
- Copyright
- Copyright © The International Neuropsychological Society 2017
References
REFERENCES
- 10
- Cited by