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  • Imitation in PD Bek et al manuscript Oct2020

    Rights statement: This is the author’s version of a work that was accepted for publication in Neuropsychologia. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Neuropsychologia, 150, 2021 DOI: 10.1016/j.neuropsychologia.2020.107690

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Action observation and imitation in Parkinson’s disease: The influence of biological and non-biological stimuli

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Action observation and imitation in Parkinson’s disease : The influence of biological and non-biological stimuli. / Bek, Judith; Gowen, Emma; Vogt, Stefan et al.

In: Neuropsychologia, Vol. 150, 107690, 08.01.2021.

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Bek J, Gowen E, Vogt S, Crawford T, Poliakoff E. Action observation and imitation in Parkinson’s disease: The influence of biological and non-biological stimuli. Neuropsychologia. 2021 Jan 8;150:107690. Epub 2020 Nov 28. doi: 10.1016/j.neuropsychologia.2020.107690

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@article{3dab9f9422724e3ea02ec6989b766909,
title = "Action observation and imitation in Parkinson{\textquoteright}s disease: The influence of biological and non-biological stimuli",
abstract = "Action observation and imitation have been found to influence movement in people with Parkinson{\textquoteright}s disease (PD), but simple visual stimuli can also guide their movement, and previous studies have not directly compared these. To investigate whether action observation may provide a more effective stimulus,the present study examined the effects of observing human pointing movements and simple visual cues on hand kinematics and eye movements in people with mild to moderate PD and age-matched controls.In Experiment 1 participants observed videos of movement sequences between horizontal positions, depicted by a simple cue with or without a moving human hand, then imitated the sequence either without further visual input (consecutive) or while watching the video again (concurrent). Modulation of movementduration in accordance with changes in the observed stimulus increased when the simple cue was accompanied by the hand, and in the concurrent task, whereas modulation of horizontal amplitude was greater with the simple cue alone and in the consecutive task.Experiment 2 compared imitation of kinematically-matched dynamic biological (human hand) and nonbiological (shape) stimuli, which moved with a high or low vertical trajectory. Both groups exhibited greater modulation for the hand than the shape, and differences in eye movements suggested closer tracking ofthe hand. Despite producing slower and smaller movements overall, the PD group showed a similar pattern of imitation to controls across conditions. The findings demonstrate that observing human action influences aspects of movement such as duration or trajectory more strongly than non-biological stimuli, particularlyduring concurrent imitation.",
keywords = "Parkinson's disease, Action observation, Imitation, Motor simulation, Motor imagery, Eye movements, Kinematics, Neurorehabilitation",
author = "Judith Bek and Emma Gowen and Stefan Vogt and Trevor Crawford and Ellen Poliakoff",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Neuropsychologia. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Neuropsychologia, 150, 2021 DOI: 10.1016/j.neuropsychologia.2020.107690",
year = "2021",
month = jan,
day = "8",
doi = "10.1016/j.neuropsychologia.2020.107690",
language = "English",
volume = "150",
journal = "Neuropsychologia",
issn = "0028-3932",
publisher = "Elsevier Limited",

}

RIS

TY - JOUR

T1 - Action observation and imitation in Parkinson’s disease

T2 - The influence of biological and non-biological stimuli

AU - Bek, Judith

AU - Gowen, Emma

AU - Vogt, Stefan

AU - Crawford, Trevor

AU - Poliakoff, Ellen

N1 - This is the author’s version of a work that was accepted for publication in Neuropsychologia. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Neuropsychologia, 150, 2021 DOI: 10.1016/j.neuropsychologia.2020.107690

PY - 2021/1/8

Y1 - 2021/1/8

N2 - Action observation and imitation have been found to influence movement in people with Parkinson’s disease (PD), but simple visual stimuli can also guide their movement, and previous studies have not directly compared these. To investigate whether action observation may provide a more effective stimulus,the present study examined the effects of observing human pointing movements and simple visual cues on hand kinematics and eye movements in people with mild to moderate PD and age-matched controls.In Experiment 1 participants observed videos of movement sequences between horizontal positions, depicted by a simple cue with or without a moving human hand, then imitated the sequence either without further visual input (consecutive) or while watching the video again (concurrent). Modulation of movementduration in accordance with changes in the observed stimulus increased when the simple cue was accompanied by the hand, and in the concurrent task, whereas modulation of horizontal amplitude was greater with the simple cue alone and in the consecutive task.Experiment 2 compared imitation of kinematically-matched dynamic biological (human hand) and nonbiological (shape) stimuli, which moved with a high or low vertical trajectory. Both groups exhibited greater modulation for the hand than the shape, and differences in eye movements suggested closer tracking ofthe hand. Despite producing slower and smaller movements overall, the PD group showed a similar pattern of imitation to controls across conditions. The findings demonstrate that observing human action influences aspects of movement such as duration or trajectory more strongly than non-biological stimuli, particularlyduring concurrent imitation.

AB - Action observation and imitation have been found to influence movement in people with Parkinson’s disease (PD), but simple visual stimuli can also guide their movement, and previous studies have not directly compared these. To investigate whether action observation may provide a more effective stimulus,the present study examined the effects of observing human pointing movements and simple visual cues on hand kinematics and eye movements in people with mild to moderate PD and age-matched controls.In Experiment 1 participants observed videos of movement sequences between horizontal positions, depicted by a simple cue with or without a moving human hand, then imitated the sequence either without further visual input (consecutive) or while watching the video again (concurrent). Modulation of movementduration in accordance with changes in the observed stimulus increased when the simple cue was accompanied by the hand, and in the concurrent task, whereas modulation of horizontal amplitude was greater with the simple cue alone and in the consecutive task.Experiment 2 compared imitation of kinematically-matched dynamic biological (human hand) and nonbiological (shape) stimuli, which moved with a high or low vertical trajectory. Both groups exhibited greater modulation for the hand than the shape, and differences in eye movements suggested closer tracking ofthe hand. Despite producing slower and smaller movements overall, the PD group showed a similar pattern of imitation to controls across conditions. The findings demonstrate that observing human action influences aspects of movement such as duration or trajectory more strongly than non-biological stimuli, particularlyduring concurrent imitation.

KW - Parkinson's disease

KW - Action observation

KW - Imitation

KW - Motor simulation

KW - Motor imagery

KW - Eye movements

KW - Kinematics

KW - Neurorehabilitation

U2 - 10.1016/j.neuropsychologia.2020.107690

DO - 10.1016/j.neuropsychologia.2020.107690

M3 - Journal article

VL - 150

JO - Neuropsychologia

JF - Neuropsychologia

SN - 0028-3932

M1 - 107690

ER -