{
  "abstract": "Neural population dynamics provide a popular framework for studying motor cortex function. However, whether such dynamics reflect stage-specific computations or are shared across the input and output stages of a sensorimotor circuit is unknown. In the spinal cord, afferent inputs and motor outputs are segregated by anatomical depth. Here we developed depth-resolved Neuropixels recordings from the rat cervical spinal cord during targeted reaching behavior. Across our recordings, population activity was low-dimensional and organized into transient, rotational and target-specific dynamical motifs. Despite differences in single-neuron activity by depth, dorsal and ventral populations expressed nearly identical dynamics across targets and animals. The dominant target-invariant component was strikingly synchronized across depths, whereas other components, including the target-specific component, showed condition-dependent ventral-to-dorsal delays with timing consistent with movement-related feedback. Thus, cervical spinal population dynamics span sensory and motor territories, and may reflect shared coordination of activity rather than purely state-specific local processing.",
  "abstract_shown": true,
  "affiliations": [
    "National Institute of Neuroscience, NCNP"
  ],
  "article_type": "New results",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "name": "T. Smith"
    },
    {
      "name": "S. Egawa"
    },
    {
      "name": "A. Kosugi"
    },
    {
      "name": "K. Maeda"
    },
    {
      "name": "c. Sugai"
    },
    {
      "name": "A. Yaron"
    },
    {
      "affs": [
        0
      ],
      "name": "K. Seki"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2xcs8awhekwy5.bib",
  "cited_by": 0,
  "doi": "10.64898/2026.10.12.758656",
  "fulltext_url": "https://www.biorxiv.org/content/10.64898/2026.10.12.758656v1.full",
  "id": "2xcs8awhekwy5",
  "issns": [],
  "landing_url": "https://www.biorxiv.org/content/10.64898/2026.10.12.758656v1",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "biorxiv",
      "neuroscience"
    ],
    [
      "openalex",
      "2805|Motor Control and Adaptation"
    ]
  ],
  "openalex": "W7222939963",
  "pdf_url": "https://www.biorxiv.org/content/10.64898/2026.10.12.758656v1.full.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2xcs8awhekwy5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:38Z",
      "native_id": "10.64898/2026.10.12.758656",
      "source": "biorxiv",
      "url": "https://www.biorxiv.org/content/10.64898/2026.10.12.758656v1"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "biorxiv:neuroscience",
      "subfield": "neuroscience"
    }
  ],
  "title": "Neural populations in the dorsal and ventral cervical spinal cord share temporal dynamics during reach",
  "title_text": "Neural populations in the dorsal and ventral cervical spinal cord share temporal dynamics during reach",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:38Z",
  "url": "https://research.draconitic.com/paper/2xcs8awhekwy5",
  "venue": "bioRxiv",
  "versions": []
}