Long latency auditory evoked potential in Asperger Syndrome: two case studies

• Autor(a) principal: Gução, Ana Cláudia Bianco [UNESP]
• Data de Publicação: 2014
• Outros Autores: Romero, Ana Carla Leite [UNESP], Valenti, Vitor Engrácia [UNESP], Cardoso, Ana Cláudia Vieira [UNESP], Misquiatti, Andréa Regina Nunes [UNESP], Frizzo, Ana Cláudia Figueiredo [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.revistas.usp.br/jhgd/article/view/72092; http://hdl.handle.net/11449/114669

Introduction: Auditory Late Responses (ALR) assess central auditory processing by neuro electric activity of the auditory pathway and analyse the activities involved in cortical abilities of discrimination, attention and integration of the brain. Individuals withAsperger Syndrome experience changes in these skills, so it is important to research these potential this population. The objective of this paper was to describe the auditory late responses of two patients with Asperger Syndrome. Methods: The study included two male patients with Asperger Syndrome, of 7 and 12 years of age, treated in a study centre. The patients did not present any auditory complaint detected by an amnesis. The external auditory canal was inspected and audiological and auditory late responses assessed. After evaluation the components P2, N2 and P3 were analysed. Results: In both patients, the latency of the components P2, N2 and P3 were elongated in both ears. Regarding the amplitude of the P2 component, reduced values were found for the left ear of patient 1 and the right ear of patient 2. The N2 amplitude was reduced for both ears of patient 1 and only the right ear of patient 2. The two patients showed a decrease in the amplitude of the P3 only in the right ear. Conclusion:This study concludes that there were changes in the ALR results in both patients with Asperger Syndrome, suggesting alteration of the auditory function at the cortex level.