{
  "id": 14984301,
  "title": "Ethological variability shapes the structure and content of sensory population codes",
  "url": "https://urgent.news/2026/10/16/ethological-variability-shapes-the-structure-and-content-of-sensory",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-16T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.13.758815v1?rss=1"
  },
  "original_language": "en",
  "account": "Ethological variability significantly influences the organization and composition of sensory population codes, according to recent research. Established theories suggest sensory systems are tailored to statistics of natural stimuli from the external environment. However, in real-world conditions, sensory populations are impacted by multiple modulatory processes simultaneously. During behavior, the statistics of population responses at the sensory periphery reveal not only external signals, but also internal and behavioral states like locomotion, attention, and arousal. Therefore, theories of sensory coding in real-world scenarios must explain adaptation to not just natural scenes, but also structured variability caused by internal processes and behavior.\n\nThe study focused on population activity in the dorsal lateral geniculate nucleus (dLGN), a crucial early stage in the visual pathway. Employing a simple probabilistic model and information-theoretic approaches, researchers characterized this variability through the statistics of downstream population messages. Their findings indicate that population variability is multidimensional: even when one behavioral factor remains constant, responses can vary substantially as other modulatory factors fluctuate. Under natural conditions, sensory population codes can thus modify their statistical structure and content, encoding stimulus features along multiple dimensions concurrently. These results underscore the necessity for sensory coding theories that consider not only adaptation to natural stimuli, but also the statistics of internal and behavioral states.",
  "summary": "Established theories of sensory coding posit that sensory systems are adapted to the statistics of natural stimuli that originate in the external environment. In natural, ethological conditions, however, sensory populations are simultaneously influenced by multiple modulatory processes. During behavior, the statistics of population responses already at the sensory periphery reflect not only…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}