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Exploring motor and visual imagery in Amyotrophic Lateral Sclerosis

Content Provider	Springer Nature Link
Author	Fiori, F. Sedda, A. Ferrè, E. R. Toraldo, A. Querzola, M. Pasotti, F. Ovadia, D. Piroddi, C. Dell’Aquila, R. Lunetta, C. Corbo, M. Bottini, G.
Copyright Year	2013
Abstract	Amyotrophic Lateral Sclerosis (ALS) is a motor neuron disease characterized by the progressive atrophy of both the first and the second motor neurons. Although the cognitive profile of ALS patients has already been defined by the occurrence of language dysfunctions and frontal deficit symptoms, it is less clear whether the degeneration of upper and lower motor neurons affects motor imagery abilities. Here, we directly investigated motor imagery in ALS patients by means of an established task that allows to examine the presence of the effects of the biomechanical constraints. Twenty-three ALS patients and 23 neurologically unimpaired participants have been administered with the (1) hand laterality task (HLT) in which participants were asked to judge the laterality of a rotated hand and the (2) mirror letter discrimination task (MLD) in which participants were asked to judge whether a rotated alphanumeric character was in its canonical or mirror-reversed form (i.e. control task). Results show that patients present the same pattern of performance as unimpaired participants at the MLD, while at the HLT, they present only partially with the effects of biomechanical constraints. Taken together, our findings provide evidences that motor imagery abilities, related to the mental simulation of an action, are affected by this progressive disease.
Starting Page	537
Ending Page	547
Page Count	11
File Format	PDF
ISSN	00144819
Journal	Experimental Brain Research
Volume Number	226
Issue Number	4
e-ISSN	14321106
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-03-17
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Motor imagery Mental rotation Hand recognition Motor pathways Grasping and reaching Amyotrophic Lateral Sclerosis Neurosciences Neurology
Content Type	Text
Resource Type	Article
Subject	Neuroscience

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