Pulvino-cortical interaction: an integrative role in the control of attention

Publication date: Available online 20 January 2020Source: Neuroscience &Biobehavioral ReviewsAuthor(s): Alexia Bourgeois, Carole Guedj, Emmanuel Carrera, Patrik VuilleumierAbstractSelective attention is a fundamental cognitive function that guides behavior by selecting and prioritizing salient or relevant sensory information of our environment. Despite early evidence and theoretical proposal pointing to an implication of thalamic control in attention, most studies in the past two decades focused on cortical substrates, largely ignoring the contribution of subcortical regions as well as cortico-subcortical interactions. Here, we suggest a key role of the pulvinar in the selection of salient and relevant information via its involvement in priority maps. Prioritization may be achieved through a pulvinar-mediated generation of alpha oscillations, which may then modulate neuronal gain in thalamo-cortical circuits. Such mechanism might orchestrate the synchrony of cortico-cortical interaction, by rendering neural communication more effective, precise and selective. We propose that this theoretical framework will support a timely shift from the prevailing cortico-centric view of cognition to a more integrative perspective of thalamic contributions to attention and executive control processes.
Source: Neuroscience and Biobehavioral Reviews - Category: Neuroscience Source Type: research

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Source: Clinica Chimica Acta - Category: Laboratory Medicine Source Type: research
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