ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2019
A Whole-Body Sensory-Motor Gradient is Revealed in the Medial Wall of the Parietal Lobe.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 24 citations in OpenAlex.
- From localization to distribution: revisiting the functional organization of the extrastriate body area.Cerebral cortex (New York, N.Y. : 1991) · 2026Review
- Enhancing interoceptive sensibility through exteroceptive-interoceptive sensory substitution.Scientific reports · 2024Article
- When mechanical engineering inspired from physiology improves postural-related somatosensory processes.Scientific reports · 2023Article
- The "vestibular neuromatrix": A proposed, expanded vestibular network from graph theory in post-concussive vestibular dysfunction.Human brain mapping · 2022Article
- Moving in on human motor cortex. Characterizing the relationship between body parts with non-rigid population response fields.PLoS computational biology · 2022Article
- Article
- Topological Maps and Brain Computations From Low to High.Frontiers in systems neuroscience · 2022Article
- A Transcriptome Community-and-Module Approach of the Human Mesoconnectome.Entropy (Basel, Switzerland) · 2021Article
- The organizational principles of de-differentiated topographic maps in somatosensory cortex.eLife · 2021Article
- Review
- Aberrant brain structural network and altered topological organization in minimal hepatic encephalopathy.Diagnostic and interventional radiology (Ankara, Turkey) · 2020Article
- Load-dependent inverted U-shaped connectivity of the default mode network in schizophrenia during a working-memory task: evidence from a replication functional MRI study.Journal of psychiatry & neuroscience : JPNArticle
- Sensory impairment and beta-amyloid deposition in the Baltimore longitudinal study of aging.Alzheimer's & dementia (Amsterdam, Netherlands)Article
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Authors and funding
4 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In 1954, Penfield and Jasper's findings based on electric stimulation of epileptic patients led them to hypothesize that a sensory representation of the body should be found in the precuneus. They termed this representation the "supplementary sensory" area and emphasized that the exact form of this homunculus could not be specified on the basis of their results. In the decades that followed, their prediction was neglected. The precuneus was found to be involved in numerous motor, cognitive and visual processes, but no work was done on its somatotopic organization. Here, we used a periodic experimental design in which 16 human subjects (eight women) moved 20 body parts to investigate the possible body part topography of the precuneus. We found an anterior-to-posterior, dorsal-to-ventral, toes-to-tongue gradient in a mirror orientation to the SMA. When inspecting body-part-specific functional connectivity, we found differential connectivity patterns for the different body parts to the primary and secondary motor areas and parietal and visual areas, and a shared connectivity to the extrastriate body area, another topographically organized area. We suggest that a whole-body gradient can be found in the precuneus and is connected to multiple brain areas with different connectivity for different body parts. Its exact role and relations to the other known functions of the precuneus such as self-processing, motor imagery, reaching, visuomotor and other body-mind functions should be investigated.
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