[Todos] Seminarios conjuntos DFBMC-IFIByNE- Dario A Protti- Viernes 11 de diciembre-

[Paula Felman]

Seminario Viernes 11 de diciembre, aula de seminarios en el LFBM, 13 hs:

Invitado: Dario A Protti
Senior Lecturer
Discipline of Physiology
School of Medical Sciences and Bosch Institute
University of Sydney
Australia

Título: "Spatial tuning properties of excitatory and inhibitory synaptic 
inputs onto primate retinal ganglion cells� (“Propiedades espaciales de 
los aferentes sinápticos excitatorios e inhibitorios en células 
ganglionares de la retina del primate�)

Resumen: In the visual system, inhibition plays very diverse and critical 
roles ranging from the control of the critical period for cortical 
plasticity to the generation of direction selectivity in the retina. Inner 
retinal inhibition is often thought to shape the temporal properties of the 
light response but not spatial tuning. We investigated the contribution of 
the inner retina to spatial tuning of retinal ganglion cells (RGCs) by 
measuring the spatial organisation of excitatory and inhibitory inputs onto 
RGCs in the marmoset. Our results show that spatial tuning of excitatory 
inputs onto ON and OFF RGCs has similar profiles whilst inhibitory inputs 
are asymmetric. Inner retinal inhibition shapes the spatial tuning of 
excitatory inputs of both ON and OFF RGCs and provides direct inhibitory 
input onto RGCs.

Host: Daniel Tomsic/Mariana Feld

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