Academic Journal
Thalamocortical interactions shape hierarchical neural variability during stimulus perception.
| العنوان: | Thalamocortical interactions shape hierarchical neural variability during stimulus perception. |
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| المؤلفون: | Tauste Campo, Adrià, Zainos, Antonio, Vázquez, Yuriria, Adell Segarra, Raul, Álvarez, Manuel, Deco, Gustavo, Díaz, Héctor, Parra Sánchez, Sergio, Romo, Ranulfo, Rossi-Pool, Román |
| المصدر: | iScience, 27 (7), 110065 (2024-07-19) |
| بيانات النشر: | Elsevier Inc., 2024. |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Neuroscience, cognitive neuroscience, sensory neuroscience, Multidisciplinary, Social & behavioral sciences, psychology, Neurosciences & behavior, Life sciences, Sciences sociales & comportementales, psychologie, Neurosciences & comportement, Sciences du vivant |
| الوصف: | 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. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501 article peer reviewed |
| اللغة: | English |
| Relation: | https://api.elsevier.com/content/article/PII:S2589004224012902?httpAccept=text/xml; urn:issn:2589-0042 |
| DOI: | 10.1016/j.isci.2024.110065 |
| URL الوصول: | https://orbi.uliege.be/handle/2268/327669 |
| Rights: | open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsorb.327669 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1016/j.isci.2024.110065 |
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