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Speech Motor ControlNew developments in basic and applied research$
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Ben Maassen and Pascal van Lieshout

Print publication date: 2010

Print ISBN-13: 9780199235797

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780199235797.001.0001

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Electrical stimulation of deep brain structures and speech

Electrical stimulation of deep brain structures and speech

(p.297) Chapter 18 Electrical stimulation of deep brain structures and speech
Speech Motor Control

Elina Tripoliti

Patricia Limousin

Oxford University Press

This chapter describes the effects of deep brain stimulation on speech in Parkinson's disease (PD). The process involves the implantation of two electrodes either in the ventro-intermediate nucleus (Vim) of the thalamus, or the globus pallidus internum (Gpi) or the subthalamic nucleus (STN), depending on the symptomatology. Speech outcome is variable following DBS in the STN with improvement noted in some acoustic measures and oro-motor non-speech tasks, but deterioration of speech intelligibility in the majority of patients. Factors affecting speech response following STN-DBS are partly surgical, i.e., current spread and contact location. There is the need for further research into ways speech is affected by deep brain stimulation in order to maximize the benefits of the treatment.

Keywords:   deep brain stimulation, neurodegenerative diseases, globus pallidus internum, subthalamic nucleus

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