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@ARTICLE{Tessari:902265,
author = {Tessari, Alessia and Mengotti, Paola and Faccioli, Luca and
Tuozzi, Giovanni and Boscarato, Silvia and Taricco,
Mariangela and Rumiati, Raffaella I.},
title = {{E}ffect of body-part specificity and meaning in gesture
imitation in left hemisphere stroke patients},
journal = {Neuropsychologia},
volume = {151},
issn = {0028-3932},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2021-04128},
pages = {107720 -},
year = {2021},
abstract = {Previous studies showed that imitation of finger and
hand/arm gestures could be differentially impaired after
brain damage. However, so far, the interaction between
gesture meaning and body part in imitation deficits has not
been fully assessed. In the present study, we aimed at
filling this gap by testing 36 unilateral left brain-damaged
patients with and without apraxia (20 apraxics), and 29
healthy controls on an imitation task of either finger or
hand/arm meaningful (MF) gestures and meaningless (ML)
movements, using a large sample of stimuli and controlling
for the composition of the experimental list. Left-brain
damaged patients imitated ML finger worse than hand/arm
movements, whereas they did not show the same difference in
MF gesture imitation. In addition, apraxic patients imitated
finger movements worse than hand/arm movements. Furthermore,
apraxic patients' imitation performance was equally affected
irrespective of the action meaning, whereas non-apraxic
patients showed better imitation performance on MF gestures.
Results suggest that MF gestures are processed as a whole,
as imitation of these gestures relies on the stored motor
programs in long-term memory, independently of the body part
involved. In contrast, ML movements seem to be processed
through direct visuo-motor transformations, with left-brain
damage specifically disrupting imitation performance of the
more cognitive demanding finger movements.},
cin = {INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-3-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525)},
pid = {G:(DE-HGF)POF4-5251},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33309676},
UT = {WOS:000613702800009},
doi = {10.1016/j.neuropsychologia.2020.107720},
url = {https://juser.fz-juelich.de/record/902265},
}