Applicability of Mismatch Negativity in children and teenagers: a descriptive review/Aplicabilidade do Mismatch Negativity em criancas e adolescentes: uma revisao descritiva

• Published in: Revista CEFAC 2016-07, Vol.18 (4), p.952
• Main Authors: Bruckmann, Mirtes, Filha, Valdete Alves Valentins dos Santos, Biaggio, Eliara Pinto Vieira, Garcia, Michele Vargas
• Format: Article
• Language: English
• ISSN: 1516-1846
• DOI: 10.1590/1982-0216201618423415

The Mismatch Negativity (MMN) is a cortical potential that occurs in response to an acoustic stimulus modification amid a repeated stimuli sequence, which reflects the brain capacity of discriminate the sound passively, in other words, without necessity the individual attention to the sound stimulus. The purpose of this study is to perform a descriptive revision about MMN, in order to identify its applicability in child and youth, in the last five years. The search was realized in the database Lilacs, SciELO, Medline and Pubmed using the following key words: Auditory Cortex, Electrophysiology and Auditory Evoked Potentials. Besides that, the words Mismatch and Negativity were used. In this revision, it were found 14 studies which evaluated child and/or youth presenting difficulties in speech articulation, specific language impairment, auditory processing disorder, Attention Deficit and Hyperactivity Disorder, dyslexia, autism, schizophrenia, psychosis, amusia, phenylketonuria and selective attention. It was possible to perform the descriptive revision about the application of MMN in child and youth, concluding that in the last five years there were a reasonable article production about the theme, however, in Brazil, there are a few studies. There is a variety of applications to MMN, though; in the national population, there is a need for scientific evidences to use this potential in the different age groups. It was found, as well, that the search for MMN studies in the databases could be done only using the word Mismatch and Negativity. Keywords: Auditory Cortex; Electrophysiology; Auditory Evoked Potentials O Mismatch Negativity (MMN) e um potencial cortical que ocorre em resposta a uma mudanca de um estimulo acustico em meio a uma sequencia de repetidos estimulos, o que reflete a capacidade do cerebro em discriminar o som de modo passivo, ou seja, sem a necessidade de atencao do individuo ao estimulo sonoro. Diante disso, o objetivo deste estudo foi realizar uma revisao descritiva sobre o MMN, a fim de identificar a sua aplicabilidade em criancas e adolescentes nos ultimos cinco anos. Para isso, realizou-se uma busca nas bases de dados Lilacs, SciELO, Medline e Pubmed utilizando os seguintes descritores: cortex auditivo, eletrofisiologia, potenciais evocados auditivos e as palavras Mismacth e Negativity. Nesta revisao, foram encontrados 14 estudos que avaliaram criancas e/ou adolescentes com dificuldade de articulacao na fala, disturbio especifico de lin