Anticipated synchronization in neuronal circuits

Tesis presentada al programa de doctorado en Física del Departamento de Física de la Universidad Federal de Pernambuco para la obtención del título de Doctor en Física.

Detalles Bibliográficos
Autor: Selingardi, Fernanda
Tipo de recurso: tesis doctoral
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/116254
Acceso en línea:http://hdl.handle.net/10261/116254
Access Level:acceso abierto
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spelling Anticipated synchronization in neuronal circuitsSelingardi, FernandaTesis presentada al programa de doctorado en Física del Departamento de Física de la Universidad Federal de Pernambuco para la obtención del título de Doctor en Física.Anticipated Synchronization (AS) is a form of synchronization that occurs when a unidirectional influence is transmitted from an emitter to a receiver, but the receiver system leads the emitter in time. This counterintuitive phenomenon can be a stable solution of two dynamical systems coupled in a master-slave configuration when the slave is subject to a negative delayed self-feedback. Many examples of AS dynamics have been found in different systems, however, theoretical and experimental evidence for it in the brain has been lacking. In this thesis work we investigate the existence of AS in neuronal circuits when the delayed feedback is replaced by an inhibitory loop mediated by chemical synapses. At the neuronal level, we show the existence of AS in 3-neuron or 3-neuron-populations microcircuits, where the self-feedback is provided either by an interneuron or by a subpopulation of inhibitory neurons. A smooth transition from delayed synchronization (DS) to AS typically occurs when the inhibitory synaptic conductance is increased. The phenomenon is shown to be robust for a wide range of model parameters within a physiological range. The role of spike-timing-dependent plasticity in DSAS transitions is also investigated. The results obtained from the model are compared with those obtained experimentally in monkeys performing certain cognitive tasks. In some cases a dominant directional influence from one cortical area to another is accompanied by either a negative or a positive time delay. We present a model for AS between two brain regions and compare its results to the experimental data, obtaining an excellent agreement.For financial support I thank to CNPq, CAPES and FINEP.Peer ReviewedUniversidade Federal de PernambucoUniversidad de las Islas BalearesCSIC-UIB - Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC)Copelli, MauroMirasso, Claudio R.Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil)Financiadora de Estudos e Projetos (Brasil)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2015201520142015info:eu-repo/semantics/doctoralThesishttp://purl.org/coar/resource_type/c_db06http://hdl.handle.net/10261/116254reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1162542026-05-22T06:33:51Z
dc.title.none.fl_str_mv Anticipated synchronization in neuronal circuits
title Anticipated synchronization in neuronal circuits
spellingShingle Anticipated synchronization in neuronal circuits
Selingardi, Fernanda
title_short Anticipated synchronization in neuronal circuits
title_full Anticipated synchronization in neuronal circuits
title_fullStr Anticipated synchronization in neuronal circuits
title_full_unstemmed Anticipated synchronization in neuronal circuits
title_sort Anticipated synchronization in neuronal circuits
dc.creator.none.fl_str_mv Selingardi, Fernanda
author Selingardi, Fernanda
author_facet Selingardi, Fernanda
author_role author
dc.contributor.none.fl_str_mv Copelli, Mauro
Mirasso, Claudio R.
Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil)
Financiadora de Estudos e Projetos (Brasil)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Tesis presentada al programa de doctorado en Física del Departamento de Física de la Universidad Federal de Pernambuco para la obtención del título de Doctor en Física.
publishDate 2014
dc.date.none.fl_str_mv 2014
2015
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
http://purl.org/coar/resource_type/c_db06
format doctoralThesis
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/116254
url http://hdl.handle.net/10261/116254
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Federal de Pernambuco
Universidad de las Islas Baleares
CSIC-UIB - Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC)
publisher.none.fl_str_mv Universidade Federal de Pernambuco
Universidad de las Islas Baleares
CSIC-UIB - Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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