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Seminario <b>Viernes 11 de diciembre</b>, aula de seminarios en el LFBM,
13 hs:<br>
<br>
Invitado: Dario A Protti<br>
Senior Lecturer<br>
Discipline of Physiology<br>
School of Medical Sciences and Bosch Institute<br>
University of Sydney<br>
Australia<br>
<br>
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”)<br>
<br>
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.<br>
<br>
Host: Daniel Tomsic/Mariana Feld <br>
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