Banca de DEFESA: ANNARA YVE MOURA SOARES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ANNARA YVE MOURA SOARES
DATE: 13/09/2023
TIME: 09:00
LOCAL: https://us02web.zoom.us/j/85876964552?pwd=SStRVDkxOGI5SUt3aElpQWZNR0ZjQT09
TITLE:

Effects Of Embryonic Exposure To Valproic Acid On Behavior And Vocal Development In Zebra Finch (Taeniopygia Guttata).

KEY WORDS:

Autism; vocal learning; vpa; delayed speech

PAGES: 124
BIG AREA: Ciências Biológicas
AREA: Fisiologia
SUMMARY:

Autism Spectrum Disorder (ASD) is a condition that affects how people communicate and interact with others. These deficits may include struggle in sharing interests or emotions, failure to initiate or respond to social interactions, and difficulty with nonverbal communication, such as eye contact, facial expressions, or body language. Rodents are the most widely used animal model for studying ASD. However, since vocal communication seems to be innate in these animals, this traditional approach does not address one of the most crucial aspects of ASD, the impairment of vocal learned communication. Songbirds are among the few organisms that evolved vocal learning and related brain pathways. Vocal learning in Zebra Finches and speech acquisition in humans share many features such as a critical period, babbling behavior, and the role of auditory and social cues for proper learning. Here, we propose a Zebra Finch model to better understand autistic-like features using embryonic exposure to valproic acid (VPA), one of the environmental factors associated with ASD. Our results show that VPA exposure leads to delayed vocal development, similar to what has been observed in humans. Moreover, VPA-exposed birds show signs of decreased social interactions, hypersensitive hearing, and altered locomotion. These results show that VPA-exposed Zebra Finch represents an attractive model to study the neurobiology of autism-related delayed vocal development.

COMMITTEE MEMBERS:
Externo à Instituição - CECÍLIA HEDIN-PEREIRA - UFRJ
Interno - 2069422 - DIEGO ANDRES LAPLAGNE
Externo à Instituição - MARIA LUISA DA SILVA - UFPA
Externa ao Programa - 1733434 - RENATA FIGUEIREDO ANOMAL - nullPresidente - 2183828 - TARCISO ANDRE FERREIRA VELHO