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DTSTART:20170326T030000
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DTSTART:20171029T020000
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BEGIN:VEVENT
DTSTAMP:20260428T084102Z
UID:58d3c01a3868a742041503@ist.ac.at
DTSTART:20170406T103000
DTEND:20170406T113000
DESCRIPTION:Speaker: Kevin Allen\nhosted by Jozsef Csicsvari\nAbstract: The
  medial entorhinal cortex is populated by several types of spatially selec
 tive neurons. Their main function is to provide spatial representations th
 at assist navigation. Among these different cell types\, grid cells have b
 een studied more intensively. It has been proposed that the activity of gr
 id cells is controlled mainly by motion cues generated internally during m
 ovement and by geometrical information related to the shape of an environm
 ent.\nIn this talk\, I will present data showing how the activity of grid 
 cells is influenced by visual landmarks. We found that\, in mice\, grid pe
 riodicity rapidly disappears when visual input are eliminated.  \nMoreover
 \, the speed code of MEC neurons changed in darkness and the activity of b
 order cells became less confined to environmental boundaries. Half of the 
 MEC neurons changed their firing rate in when visual landmarks are manipul
 ated. I will also present a preliminary experiment investigating whether v
 isual landmarks also influence the location of the firing fields of grid c
 ells. Together\, our findings highlight the strong influence of visual lan
 dmarks on the rate code of MEC neurons.
LOCATION:Mondi Seminar Room 2\, Central Building\, ISTA
ORGANIZER:ddomniso@ist.ac.at
SUMMARY:Kevin Allen: Impact of visual landmarks on the activity of grid cel
 ls and other spatially selectiv
URL:https://talks-calendar.ista.ac.at/events/396
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