IFEG 20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Modeling and characterization of the emerging spatial patterns in the mammals primary visual cortex
Autor/es:
YUDY CAROLINA DAZA CARO; FRANCISCO ANTONIO TAMARIT; PABLO GLEISER; CAROLINA TAURO
Lugar:
Buenos Aires
Reunión:
Otro; XV Giambiagi Winter School; 2013
Resumen:
There are some phenomena in the nature
in which some elements of a system present
the same group rhythmic behaviour. When this
occurs, we say that there is a synchronization
between the elements or parts of the system.
An example of this phenomenon is the synchronization
of the neuron activity in the brain, in particular
in the mammals visual cortex, where is
possible to observe different patterns of activity.
In order to understand this pattern formation,
each neuron phase preference can be modelled
as a phase-coupled oscillator, as a result of
this coupling, a synchronization of the phases
arises under some circumstances. In this work
we analyse the formation of this patterns using
a scale-free topology of connections. With
the purpose of making a more realistic model,
this network is embedded in a low-dimensional
Euclidean space and the interaction function is
modelled with a mexican hat function that depends
of the distance and the site in the network.
Subsequently, we explore tools to characterize
quantitatively the patterns obtained. In order
to do this, we select a subset of parameters
and make different calculations of measurable
quantities on the patterns. Further analyses with
the developed tools will include the characterization
of patterns in an extended set of parameters
and in images of mammals visual cortex.
