The functional organization of the parieto-frontal system is crucial for understanding cognitive-motor behavior and provides the basis for interpreting the consequences of parietal lesions in humans from a neurobiological perspective. The parieto-frontal connectivity defines some main information streams that, rather than being devoted to restricted functions, underlie a rich behavioral repertoire. Surprisingly, from macaque to humans, evolution has added only a few, new functional streams, increasing however their complexity and encoding power. In fact, the characterization of the conduction times of parietal and frontal areas to different target structures has recently opened a new window on cortical dynamics, suggesting that evolution has amplified the probability of dynamic interactions between the nodes of the network, thanks to communication patterns based on temporally-dispersed conduction delays. This might allow the representation of sensory-motor signals within multiple neural assemblies and reference frames, as to optimize sensory-motor remapping within an action space characterized by different and more complex demands across evolution.

Organization and evolution of parieto-frontal processing streams in macaque monkeys and humans / Caminiti, Roberto; Innocenti, Giorgio M.; BATTAGLIA MAYER, Alessandra. - In: NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS. - ISSN 0149-7634. - STAMPA. - 56:(2015), pp. 73-96. [10.1016/j.neubiorev.2015.06.014]

Organization and evolution of parieto-frontal processing streams in macaque monkeys and humans

CAMINITI, Roberto;BATTAGLIA MAYER, Alessandra
2015

Abstract

The functional organization of the parieto-frontal system is crucial for understanding cognitive-motor behavior and provides the basis for interpreting the consequences of parietal lesions in humans from a neurobiological perspective. The parieto-frontal connectivity defines some main information streams that, rather than being devoted to restricted functions, underlie a rich behavioral repertoire. Surprisingly, from macaque to humans, evolution has added only a few, new functional streams, increasing however their complexity and encoding power. In fact, the characterization of the conduction times of parietal and frontal areas to different target structures has recently opened a new window on cortical dynamics, suggesting that evolution has amplified the probability of dynamic interactions between the nodes of the network, thanks to communication patterns based on temporally-dispersed conduction delays. This might allow the representation of sensory-motor signals within multiple neural assemblies and reference frames, as to optimize sensory-motor remapping within an action space characterized by different and more complex demands across evolution.
2015
conduction delays; emergence of areas; exaptation; frontal clusters; frontal cortex; homology; parietal clusters; parietal cortex; parietal evolution; parietal lesion; parietal patients; parietal streams; parieto-frontal connections; behavioral neuroscience; cognitive neuroscience; neuropsychology and physiological psychology
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Organization and evolution of parieto-frontal processing streams in macaque monkeys and humans / Caminiti, Roberto; Innocenti, Giorgio M.; BATTAGLIA MAYER, Alessandra. - In: NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS. - ISSN 0149-7634. - STAMPA. - 56:(2015), pp. 73-96. [10.1016/j.neubiorev.2015.06.014]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/796889
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