A biologically constrained spiking model of layer 2/3 incorporating four canoni…

A biologically constrained spiking model of layer 2/3 incorporating four canonical interneuron classes (PV, SST, VIP, LAMP5) implements soft winner-take-all dynamics, with VIP transiently disinhibiting SST and LAMP5 providing global gain normalization.

{
  "n": null,
  "id": "cluster_11_finding_01",
  "doi": "10.1073/pnas.2504164122",
  "pmid": "41055996",
  "year": "2025",
  "claim": "A biologically constrained spiking model of layer 2/3 incorporating four canonical interneuron classes (PV, SST, VIP, LAMP5) implements soft winner-take-all dynamics, with VIP transiently disinhibiting SST and LAMP5 providing global gain normalization.",
  "pmcid": "PMC12541343",
  "title": "Biologically grounded neocortex computational primitives implemented on neuromorphic hardware improve vision transformer performance.",
  "authors": "Iqbal A, Mahmood H, Stuart GJ, Fishell G, Honnuraiah S.",
  "journal": "Proceedings of the National Academy of Sciences of the United States of America",
  "cite_key": "Iqbal2025",
  "evidence": "Authors built a 4-interneuron-type spiking network and embedded sWTA, gain control, disinhibition, and normalization motifs onto neuromorphic hardware to improve vision-transformer performance.",
  "effect_size": null,
  "text_access": "fulltext",
  "study_system": "spiking neural network model of L2/3 cortex, neuromorphic hardware (TrueNorth)",
  "_source_cluster": "cluster_11_computational_models",
  "replication_status": "replicated_independent",
  "_source_cluster_index": 0,
  "claim_source_sentence": "In sensory cortex, pyramidal neurons integrate bottom–up and top–down signals under the modulatory influence of key interneuron classes: parvalbumin (PV), somatostatin (SST), vasoactive intestinal peptide (VIP), and LAMP5-expressing neurogliaform cells each of which mediates distinct computational roles including gain control, disinhibition, and normalization respectively ( 6 – 12 ).",
  "replication_evidence_dois": [
    "10.1371/journal.pcbi.1013469",
    "10.1371/journal.pcbi.1012036",
    "10.1093/cercor/bhae378",
    "10.1007/s00422-021-00894-6",
    "10.7554/elife.77594"
  ],
  "effect_size_source_sentence": null
}

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In sensory cortex, pyramidal neurons integrate bottom–up and top–down signals under the modulatory influence of key interneuron classes: parvalbumin (PV), somatostatin (SST), vasoactive intestinal peptide (VIP), and LAMP5-expressing neurogliaform cells each of which mediates distinct computational roles including gain control, disinhibition, and normalization respectively ( 6 – 12 ).

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  "source_commit_sha": "95e761177f7d2ec565983d3307c14ec238f9677c",
  "source_repository_url": "https://github.com/AllenNeuralDynamics/ComputationalReviewVIP"
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