Banca de DEFESA: LUCAS GALDINO BANDEIRA DOS SANTOS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : LUCAS GALDINO BANDEIRA DOS SANTOS
DATE: 19/06/2023
TIME: 13:00
LOCAL: Sala de aula do Instituto do Cérebro
TITLE:

Characterization of the Functional Interhemispheric Connectivity using EEG and a Bistable Visual Illusion of Movement

KEY WORDS:

cortex visual, corpus callosum, visual-evoked potential, apparent motion, Gestalt, graph theory

PAGES: 147
BIG AREA: Ciências Biológicas
AREA: Fisiologia
SUBÁREA: Fisiologia de Órgãos e Sistemas
SPECIALTY: Neurofisiologia
SUMMARY:

Visual illusions can be defined as a dissociation of the physical properties of a visual stimulus that generates an altered or bistable perception. In the field of illusions, the Motion Quartet (MQT) is a well-studied paradigm characterized by generating illusory motion in cardinal directions: vertical and horizontal. However, there is still no evidence regarding the display of this stimulus in different regions of the visual field or after the substitution of its constituent elements by Gabor patches during electroencephalography (EEG) recording. Thus, this project aims to characterize the inter- and intra-hemispheric connectivity of the visual cortex in healthy individuals. At the moment, 32 healthy volunteers have participated in the study. All volunteers went through the following stages: pre-evaluation, screening, and EEG experiment during the performance of the MQT task. After recording, inter-hemispheric connectivity was evaluated using computational metrics and their relationships with each volunteer's behavioral response. The results of this project will help understand the electrophysiological mechanisms involved in the display of MQT (or the visualization of a visual illusion) in different spatial regions or the modification of its constituent elements and may establish a baseline for this phenomenon in a sample of healthy volunteers.

COMMITTEE MEMBERS:
Presidente - 1871878 - KERSTIN ERIKA SCHMIDT
Interno - 1216466 - JOHN FONTENELE ARAUJO
Externo ao Programa - 1728817 - CLAUDIO MARCOS TEIXEIRA DE QUEIROZ - UFRNExterno à Instituição - BRUSS REBOUÇAS COELHO LIMA - UFRJ
Externo à Instituição - WILFREDO BLANCO FIGUEROLA - UERN