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International join research on the development and apllication of electroretinographic and psychophysical methods for the assessment of postreceptoral on-and off-mechanisms in both... (fapesp/baylat)

Grant number:12/51299-3
Support Opportunities:Regular Research Grants
Start date: February 01, 2013
End date: January 31, 2015
Field of knowledge:Humanities - Psychology - Experimental Psychology
Agreement: BAYLAT/StMBW - Bavarian Academic Center for Latin America and Bavarian State Ministry of Science and the Arts
Principal Investigator:Dora Selma Fix Ventura
Grantee:Dora Selma Fix Ventura
Principal researcher abroad:Jan Kremers
Institution abroad: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) , Germany
Host Institution: Instituto de Psicologia (IP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
City of the host institution:São Paulo

Abstract

Diabetes mellitus and Duchenne muscular dystrophy are diseases that affect many organ systems in the body, including the retina. The objective of the proposed project is to obtain a more comprehensive and detailed understanding of the pathophysiological mechanisms in the human retina associated with these two important diseases. Our approach will be to use modern electrophysiological and psychophysical techniques that selectively reflect the activity of post-receptoral retinal mechanisms. The techniques are designed to specifically tap post-receptoral mechanisms associated with distinct retino-geniculate pathways that subserve different sensory-perceptual features: spatiotemporal luminance (achromatic) and chromatic vision. The results of the project will quantify the alterations caused by these diseases in these visual pathways, clarify the nature and locus of alterations in the underlying retinal neural substrate and bring the data in a context that is relevant for visual perception. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications (5)
(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)
TSAI, TINA I.; BARBONI, MIRELLA TELLES SALGUEIRO; NAGY, BALAZS VINCE; ROUX, MICHEL J.; RENDON, ALVARO; KREMERS, JAN J.. Asymmetrical ON/OFF retinal dysfunction in the mdx(Cv3) mouse model of Duchenne muscular dystrophy. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, v. 57, n. 12, p. 3-pg., . (14/06457-5, 12/51299-3, 12/01115-3, 07/55125-1)
NAGY, BALAZS VINCE; SALGUEIRO BARBONI, MIRELLA TELLES; GOMES MARTINS, CRISTIANE MARIA; DA COSTA, MARCELO FERNANDES; KREMERS, JAN; VENTURA, DORA FIX. Human flicker electroretinography using different temporal modulations at mesopic and photopic luminance levels. DOCUMENTA OPHTHALMOLOGICA, v. 129, n. 2, p. 129-138, . (08/58731-2, 07/55125-1, 12/51299-3, 12/01115-3)
HUCHZERMEYER, CORD; MARTINS, CRISTIANE M. G.; NAGY, BALAZS; BARBONI, MIRELLA T. S.; VENTURA, DORA F.; COSTA, MARCELO F.; KREMERS, JAN. Photoreceptor-specific light adaptation of critical flicker frequency in trichromat and dichromat observers. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, v. 35, n. 4, p. B106-B113, . (14/26818-2, 16/22007-5, 12/51299-3, 14/06457-5)
TSAI, TINA I.; SALGUEIRO BARBONI, MIRELLA TELLES; NAGY, BALAZS VINCE; ROUX, MICHEL J.; RENDON, ALVARO; VENTURA, DORA FIX; KREMERS, JAN. Asymmetrical Functional Deficits of ON and OFF Retinal Processing in the mdx(3Cv) Mouse Model of Duchenne Muscular Dystrophy. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, v. 57, n. 13, p. 5788-5798, . (14/06457-5, 12/51299-3, 07/55125-1, 12/01115-3)
SALGUEIRO BARBONI, MIRELLA TELLES; GOMES MARTINS, CRISTIANE MARIA; NAGY, BALAZS VINCE; TSAI, TINA; DAMICO, FRANCISCO MAX; DA COSTA, MARCELO FERNANDES; PAVANELLO, RITA DE CASSIA M.; VILACA LOURENCO, NAILA CRISTINA; PEREIRADE CERQUEIRA, ANTONIA MARIA; ZATZ, MAYANA; et al. Dystrophin Is Required for Proper Functioning of Luminance and Red-Green Cone Opponent Mechanisms in the Human Retina. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, v. 57, n. 8, p. 3581-3587, . (14/26818-2, 12/51299-3, 12/01115-3, 14/06457-5, 13/08028-1)