Evaluating perceptual organization in healthy controls and two clinical populations: basic and translational research

• Grant number: 14/11668-5
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: June 01, 2015
• End date: December 31, 2016
• Field of knowledge: Humanities - Psychology - Physiological Psychology
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Paulo Sérgio Boggio
• Grantee: Thiago Leiros Costa
• Host Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Presbiteriana Mackenzie (UPM). Instituto Presbiteriano Mackenzie. São Paulo , SP, Brazil

Abstract

Perceptual Organization (PO) was the focus of Gestalt psychology but was not studied enough throughout visual neuroscience history. Today we can better understand PO by using more precise stimuli, electrophysiological and image methods that were not available for the Gestalt pioneers. The main challenges in PO research today are to understand it's underlying mechanisms and how different grouping and figure-ground organization processes interact (clarifying which factors are specific and which are common to these processes). Here we will perform a set of complementary experiments to help clarifying these issues and improve clinical evaluation. We will use new tests and stimuli developed by a reference group in this area, evaluating how different PO tasks employ the ventral and dorsal visual pathways and how different event related potentials and oscillatory rhythms underlie performance in these tasks. We will use EEG, behavioral tests and non-invasive brain stimulation. In the end of the project we will have contributed to the area with: better understanding of PO underlying mechanisms, improvement of behavioral and electrophysiological testing methods for PO, better understanding of the similarities between grouping and figure-ground organization tasks and better understanding of the PO status in dyslexia and traumatic brain injury. (AU)

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

COSTA, THIAGO L.; ZANINOTTO, ANA LUIZA C.; BENUTE, GLAUCIA G.; DE LUCIA, MARA C. S.; PAIVA, WELLINGSON S.; WAGEMANS, JOHAN; BOGGIO, PAULO S.. Perceptual organization deficits in traumatic brain injury patients. Neuropsychologia, v. 78, p. 142-152, NOV 2015. (14/11668-5)

MARQUES, LUCAS MURRINS; LAPENTA, OLIVIA MORGAN; COSTA, THIAGO LEIROS; BOGGIO, PAULO SERGIO. Multisensory integration processes underlying speech perception as revealed by the McGurk illusion. LANGUAGE COGNITION AND NEUROSCIENCE, v. 31, n. 9, p. 1115-1129, 2016. (14/24399-2, 12/24696-1, 14/11668-5)

BOGGIO, PAULO S.; REGO, GABRIEL G.; MARQUES, LUCAS M.; COSTA, THIAGO L.. Social Psychology and Noninvasive Electrical Stimulation A Promising Marriage. EUROPEAN PSYCHOLOGIST, v. 21, n. 1, p. 11-pg., 2016-01-01. (14/24399-2, 14/11668-5)

BOGGIO, PAULO S.; REGO, GABRIEL G.; MARQUES, LUCAS M.; COSTA, THIAGO L.. Social Psychology and Noninvasive Electrical Stimulation A Promising Marriage. EUROPEAN PSYCHOLOGIST, v. 21, n. 1, SI, p. 30-40, 2016. (14/24399-2, 14/11668-5)

COSTA, THIAGO LEIROS; ORSTEN-HOOGE, KIMBERLEY; REGO, GABRIEL GAUDENCIO; WAGEMANS, JOHAN; POMERANTZ, JAMES R.; BOGGIO, PAULO SERGIO. Neural Signatures of the Configural Superiority Effect and Fundamental Emergent Features in Human Vision. SCIENTIFIC REPORTS, v. 8, SEP 17 2018. (14/11668-5, 15/18713-9)