Details

Autor(en) / Beteiligte

• Cortes, Nelson
• Ladret, Hugo J.
• Abbas-Farishta, Reza
• Casanova, Christian

Titel

The pulvinar as a hub of visual processing and cortical integration

Ist Teil von

• Trends in neurosciences (Regular ed.), 2024-02, Vol.47 (2), p.120-134

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2024

Quelle

MEDLINE

Beschreibungen/Notizen

• The thalamic pulvinar exhibits extensive reciprocal connections with the visual cortex. These connections provide alternative pathways for the transmission of signals between cortical neurons.Although the precise roles of the pulvinar in vision are incompletely understood, research indicates that the pulvinar is involved in target selection among distractors, feature binding, and visual attention. Pulvinar dysfunctions have been associated with sensory deficits observed in individuals with schizophrenia.Computational models suggest that the pulvinar plays a crucial role in establishing persistent activity within the cortical network by regulating the flow of information across visual cortical areas and the synchronization of their activity.We highlight the organization of brain networks involving the pulvinar and propose a pivotal role for the pulvinar within the framework of cortical theories that aim to elucidate the processes of perception and cognitive integration. The pulvinar nucleus of the thalamus is a crucial component of the visual system and plays significant roles in sensory processing and cognitive integration. The pulvinar’s extensive connectivity with cortical regions allows for bidirectional communication, contributing to the integration of sensory information across the visual hierarchy. Recent findings underscore the pulvinar’s involvement in attentional modulation, feature binding, and predictive coding. In this review, we highlight recent advances in clarifying the pulvinar’s circuitry and function. We discuss the contributions of the pulvinar to signal modulation across the global cortical network and place these findings within theoretical frameworks of cortical processing, particularly the global neuronal workspace (GNW) theory and predictive coding. The pulvinar nucleus of the thalamus is a crucial component of the visual system and plays significant roles in sensory processing and cognitive integration. The pulvinar’s extensive connectivity with cortical regions allows for bidirectional communication, contributing to the integration of sensory information across the visual hierarchy. Recent findings underscore the pulvinar’s involvement in attentional modulation, feature binding, and predictive coding. In this review, we highlight recent advances in clarifying the pulvinar’s circuitry and function. We discuss the contributions of the pulvinar to signal modulation across the global cortical network and place these findings within theoretical frameworks of cortical processing, particularly the global neuronal workspace (GNW) theory and predictive coding.