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Speech dysfunction, cognition, and Parkinson's disease.

Andrea Rohl1, Stephanie Gutierrez2, Karim Johari1

  • 1Department of Neurosurgery, University of Iowa, Iowa City, IA, United States.

Progress in Brain Research
|March 6, 2022
PubMed
Summary

Parkinson's disease (PD) impairs communication through motor and cognitive changes, affecting quality of life. Understanding this interaction is key for effective PD communication interventions.

Keywords:
CommunicationCommunication participationConversationParkinson's diseaseSpeechSpeech-language therapySpoken languageVoice

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Area of Science:

  • Neurology
  • Speech-Language Pathology
  • Cognitive Science

Background:

  • Communication difficulties are common in Parkinson's disease (PD), impacting speech and language.
  • These challenges significantly reduce quality of life, leading to social withdrawal and isolation.
  • Cognitive processes and motor functions are increasingly recognized as interconnected in speech production.

Purpose of the Study:

  • To review the interplay between cognitive impairments and motor changes in PD affecting communication.
  • To examine these effects across all disease stages, with or without dementia.
  • To discuss how cognitive factors are integrated into current PD communication interventions.

Main Methods:

  • Literature review of theoretical advances and experimental evidence.
  • Synthesis of research on cognitive-motor interactions in PD speech.
  • Analysis of common PD interventions (pharmacological, surgical, non-pharmacological).

Main Results:

  • Cognitive impairments exacerbate motor-related speech deficits in PD.
  • Communication difficulties persist throughout PD progression, irrespective of dementia status.
  • Existing interventions may not fully address the cognitive underpinnings of communication disorders in PD.

Conclusions:

  • Cognitive-motor interactions are central to understanding PD-related communication deficits.
  • A comprehensive approach is needed to address both motor and cognitive aspects of communication in PD.
  • Future interventions should explicitly consider and target cognitive influences on speech production in Parkinson's disease.