ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2019
Motor control pathways in the nervous system of Octopus vulgaris arm.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed.
- Octopus-inspired muscle activation unlocks high-DOF motion from a single actuator.Science advances · 2026Article
- Multiple Longitudinal Tracts in the Cephalopod Arm Sensorimotor System.The Journal of comparative neurology · 2026Article
- Elephant trunk tip musculature reflects species differences in grasping behavior.Communications biology · 2025Article
- Multiple longitudinal tracts in the cephalopod arm sensorimotor system.bioRxiv : the preprint server for biology · 2025Article
- Article
- Molecular and Morphological Circuitry of the Octopus Sucker Ganglion.The Journal of comparative neurology · 2025Article
- The Persistence of Memory: Behavioral Analysis and Arm Usage of a Nine-ArmedAnimals : an open access journal from MDPI · 2025Article
- NSF Workshop Report: Exploring Measurements and Interpretations of Intelligent Behaviors Across Animal Model Systems.The Journal of comparative neurology · 2025Article
- In vivo electrophysiology recordings and computational modeling can predict octopus arm movement.Bioelectronic medicine · 2025Article
- Neuronal segmentation in cephalopod arms.Nature communications · 2025Article
- Octopus track chemosensory plumes to find food.PloS one · 2025Article
- Autonomous phototaxis of hydrogel swimmers.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Single unit electrophysiology recordings and computational modeling can predict octopus arm movement.bioRxiv : the preprint server for biology · 2024Article
- Division of labor for defensive retaliation and preemption by the peripheral and central nervous systems in the nudibranch Berghia.Current biology : CB · 2024Article
- Mechanosensory signal transmission in the arms and the nerve ring, an interarm connective, ofiScience · 2023Article
- Transcriptome-wide selection and validation of a solid set of reference genes for gene expression studies in the cephalopod molluskFrontiers in molecular neuroscience · 2023Article
- On the importance of integrating comparative anatomy and One Health perspectives in anatomy education.Journal of anatomy · 2022Review
- Lessons for Robotics From the Control Architecture of the Octopus.Frontiers in robotics and AI · 2022Article
- Panoramic spatial vision in the bay scallopProceedings. Biological sciences · 2021Article
- Potential evidence of peripheral learning and memory in the arms of dwarf cuttlefish, Sepia bandensis.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The octopus's arms have virtually infinite degrees of freedom, providing a unique opportunity for studying movement control in a redundant motor system. Here, we investigated the organization of the connections between the brain and arms through the cerebrobrachial tracts (CBT). To do this, we analyzed the neuronal activity associated with the contraction of a small muscle strand left connected at the middle of a long isolated CBT. Both electrical activity in the CBT and muscle contraction could be induced at low threshold values irrespective of stimulus direction and distance from the muscle strand. This suggests that axons associated with transmitting motor commands run along the CBT and innervate a large pool of motor neurons en passant. This type of innervation implies that central and peripheral motor commands involve the simultaneous recruitment of large groups of motor neurons along the arm as required, for example, in arm stiffening, and that the site of movement initiation along the arm may be determined through a unique interplay between global central commands and local sensory signals.
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