LUCIA IRACEMA ZANOTTO DE MENDONCA

(Fonte: Lattes)
Índice h a partir de 2011
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Lattes
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Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico

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Revista / Livro: Journal of Fluency Disorders ×

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  • article 6 Citação(ões) na Scopus
    Stuttering treatment control using P300 event-related potentials
    (2011) SASSI, Fernanda Chiarion; MATAS, Carla Gentile; MENDONCA, Lucia Iracema Zanotto de; ANDRADE, Claudia Regina Furquim de
    Positron emission tomography studies during speech have indicated a failure to show the normal activation of auditory cortical areas in stuttering individuals. In the present study, P300 event-related potentials were used to investigate possible effects of behavioral treatment on the pattern of signal amplitude and latency between waves. In order to compare variations in P300 measurements, a control group paired by age and gender to the group of stutterers, was included in the study. Findings suggest that the group of stutterers presented a significant decrease in stuttering severity after the fluency treatment program. Regarding P300 measurements, stutterers and their controls presented results within normal limits in all testing situations and no significant statistical variations between pre and post treatment testing. When comparing individual results between the testing situations, stutterers presented a higher average decrease in wave latency for the right ear following treatment. The results are discussed in light of previous P300 event-related potentials and functional imaging studies with stuttering adults. Educational objectives: The reader will learn about and be able to describe the: (1) use of P300 event-related potentials in the study of stuttering; (2) differences between stuttering and non-stuttering adults; and (3) effects of behavioral fluency treatment on cerebral activity in stuttering speakers.
  • article 1 Citação(ões) na Scopus
    Reprint of: Stuttering treatment control using P300 event-related potentials
    (2011) SASSI, Fernanda Chiarion; MATAS, Carla Gentile; MENDONCA, Lucia Iracema Zanotto de; ANDRADE, Claudia Regina Furquim de
    Positron emission tomography studies during speech have indicated a failure to show the normal activation of auditory cortical areas in stuttering individuals. In the present study. P300 event-related potentials were used to investigate possible effects of behavioral treatment on the pattern of signal amplitude and latency between waves. In order to compare variations in P300 measurements, a control group paired by age and gender to the group of stutterers, was included in the study. Findings suggest that the group of stutterers presented a significant decrease in stuttering severity after the fluency treatment program. Regarding P300 measurements, stutterers and their controls presented results within normal limits in all testing situations and no significant statistical variations between pre and post treatment testing. When comparing individual results between the testing situations, stutterers presented a higher average decrease in wave latency for the right ear following treatment. The results are discussed in light of previous P300 event-related potentials and functional imaging studies with stuttering adults. Educational objectives: The reader will learn about and be able to describe the: (1) use of P300 event-related potentials in the study of stuttering; (2) differences between stuttering and non-stuttering adults; and (3) effects of behavioral fluency treatment on cerebral activity in stuttering speakers.