Article (Scientific journals)
Thalamocortical interactions shape hierarchical neural variability during stimulus perception.
Tauste Campo, Adrià; Zainos, Antonio; Vázquez, Yuriria et al.
2024In iScience, 27 (7), p. 110065
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Keywords :
Neuroscience; cognitive neuroscience; sensory neuroscience; Multidisciplinary
Abstract :
[en] The brain is organized hierarchically to process sensory signals. But, how do functional connections within and across areas contribute to this hierarchical order? We addressed this problem in the thalamocortical network, while monkeys detected vibrotactile stimulus. During this task, we quantified neural variability and directed functional connectivity in simultaneously recorded neurons sharing the cutaneous receptive field within and across VPL and areas 3b and 1. Before stimulus onset, VPL and area 3b exhibited similar fast dynamics while area 1 showed slower timescales. During the stimulus presence, inter-trial neural variability increased along the network VPL-3b-1 while VPL established two main feedforward pathways with areas 3b and 1 to process the stimulus. This lower variability of VPL and area 3b was found to regulate feedforward thalamocortical pathways. Instead, intra-cortical interactions were only anticipated by higher intrinsic timescales in area 1. Overall, our results provide evidence of hierarchical functional roles along the thalamocortical network.
Disciplines :
Neurosciences & behavior
Life sciences: Multidisciplinary, general & others
Author, co-author :
Tauste Campo, Adrià ;  Computational Biology and Complex Systems group, Department of Physics, Universitat Politècnica de Catalunya, Avinguda Dr. Marañón, 44-50, 08028 Barcelona, Catalonia, Spain
Zainos, Antonio ;  Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
Vázquez, Yuriria ;  Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
Adell Segarra, Raul ;  Computational Biology and Complex Systems group, Department of Physics, Universitat Politècnica de Catalunya, Avinguda Dr. Marañón, 44-50, 08028 Barcelona, Catalonia, Spain
Álvarez, Manuel ;  Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
Deco, Gustavo ;  Center for Brain and Cognition (CBC), Department of Information Technologies and Communications (DTIC), Pompeu Fabra University, Edifici Mercè Rodoreda, Carrer Trias I Fargas 25-27, 08005 Barcelona, Catalonia, Spain ; Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010 Barcelona, Catalonia, Spain
Díaz, Héctor ;  Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
Parra Sánchez, Sergio  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Brain-Inspired Computing
Romo, Ranulfo ;  El Colegio Nacional, Mexico City 06020, Mexico
Rossi-Pool, Román ;  Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico ; Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, Mexico City, Mexico
Language :
English
Title :
Thalamocortical interactions shape hierarchical neural variability during stimulus perception.
Publication date :
19 July 2024
Journal title :
iScience
eISSN :
2589-0042
Publisher :
Elsevier Inc., United States
Volume :
27
Issue :
7
Pages :
110065
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
UNAM - Universidad Nacional Autónoma de México
Bial Foundation
MICINN - Ministerio de Ciencia, Innovación y Universidades
CONACYT - Consejo Nacional de Ciencia y Tecnología
IBRO - International Brain Research Organization
Funding text :
A.T.C. was supported by the Spanish national research project (ref. PID2020-119072RA-I00/AEI/10.13039/501100011033 ) funded by the Spanish Ministry of Science, Innovation, and Universities ( MCIU ) and the Bial Foundation grant 106/18 . G.D. was supported by the Spanish national research project (ref. PID2019-105772GB-I00/AEI/10.13039/501100011033 ) funded by the Spanish Ministry of Science, Innovation, and Universities ( MCIU ). This work was supported by grants PAPIITIN205022 from the Direcci\u00F3n de Asuntos del Personal Acad\u00E9mico de la Universidad Nacional Aut\u00F3noma de M\u00E9xico (to R.R.-P.); CONAHCYT-319347 (to R.R.P.) from Consejo Nacional de Ciencia y Tecnolog\u00EDa ; and IBRO Early Career Award 2022 (to R.R.-P.) from International Brain Research Association.A.T.C. was supported by the Spanish national research project (ref. PID2020-119072RA-I00/AEI/10.13039/501100011033) funded by the Spanish Ministry of Science, Innovation, and Universities (MCIU) and the Bial Foundation grant 106/18. G.D. was supported by the Spanish national research project (ref. PID2019-105772GB-I00/AEI/10.13039/501100011033) funded by the Spanish Ministry of Science, Innovation, and Universities (MCIU). This work was supported by grants PAPIITIN205022 from the Direcci\u00F3n de Asuntos del Personal Acad\u00E9mico de la Universidad Nacional Aut\u00F3noma de M\u00E9xico (to R.R.-P.); CONAHCYT-319347 (to R.R.P.) from Consejo Nacional de Ciencia y Tecnolog\u00EDa; and IBRO Early Career Award 2022 (to R.R.-P.) from International Brain Research Association. R.R. directed the experiments; A.Z. Y.V. M.A. H.D. and R.R. were responsible for the neural recordings and animal training; R.R. R.R.-P. A.T.C. and G.D. designed study and provided financial support; A.T.C. R.A.S. R.R.-P. and S.P. were responsible for the data analysis and wrote manuscript. All authors have no relevant financial or non-financial interests to disclose.
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