Estimulação transcraniana por corrente contínua e aprendizagem motora de fala: uma revisão integrativa

Abstract

The existence of speech primarily requires organization, planning and motor control of the phonoarticulatory organs covered. Like other functions of the human body, speech is developed from cognitive and motor learning aspects, which can be altered and hinder the evolution of this acquisition process. When the speech motor learning process is altered, it has a direct impact on the production of sounds. After identifying the cause of the speech change, therapeutic interventions are generally sought to assist in the usual speech motor learning process, and alongside these interventions there are complementary treatments such as Transcranial Direct Current Stimulation (tDCS), which together with Therapies can favor the maturation of certain stimulated skills. Therefore, our general objective is to evaluate the effects of using tDCS as a complementary intervention in speech motor learning. The study followed the methodology of the PRISMA guidelines in conjunction with the PICO strategy, with the aim of guiding this scoping review. The search in the databases was between the years 2013 and 2023. The databases used were PubMed (Medline), Bireme and Embase (by Capes journals). In which, the descriptors were used: “Transcranial Direct Current Stimulation”, their respective abbreviations together with the term “Motor and learning speech” followed by the Boolean operator “and”. The eligibility criteria were: studies in English, Portuguese or Spanish; intervention studies; clinical trials; systematic reviews; experimental research; books and theses available in full. The articles found varied the focus on the use of tDCS to promote speech motor learning in aspects related to the brain areas stimulated and the parameters for its use.