ArticleProceedings of the National Academy of Sciences of the United States of America2018
Spatial eye-hand coordination during bimanual reaching is not systematically coded in either LIP or PRR.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 12 citations in OpenAlex.
- A causal role for the posterior corpus callosum in bimanual coordination.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Functional organization of posterior parietal cortex circuitry based on inferred information flow.Cell reports · 2024Article
- Putative cell-type-specific multiregional mode in posterior parietal cortex during coordinated visual behavior.Neuron · 2023Article
- Neuronal representation of bimanual arm motor imagery in the motor cortex of a tetraplegia human, a pilot study.Frontiers in neuroscience · 2023Article
- Local field potentials in the parietal reach region reveal mechanisms of bimanual coordination.Nature communications · 2021Article
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2 authors at 1 institution in 1 country.
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Abstract
We often orient to where we are about to reach. Spatial and temporal correlations in eye and arm movements may depend on the posterior parietal cortex (PPC). Spatial representations of saccade and reach goals preferentially activate cells in the lateral intraparietal area (LIP) and the parietal reach region (PRR), respectively. With unimanual reaches, eye and arm movement patterns are highly stereotyped. This makes it difficult to study the neural circuits involved in coordination. Here, we employ bimanual reaching to two different targets. Animals naturally make a saccade first to one target and then the other, resulting in different patterns of limb-gaze coordination on different trials. Remarkably, neither LIP nor PRR cells code which target the eyes will move to first. These results suggest that the parietal cortex plays at best only a permissive role in some aspects of eye-hand coordination and makes the role of LIP in saccade generation unclear.
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