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April 18, 2026动物学研究Open Access

Neural Representation for Color-selective Populations in the Pigeon Entopallium

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Authors

HQHe QingzhiZJZhu JuncaiNXNiu XiaoKe

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Overview

Multi-site recordings demonstrate hue selectivity in pigeons, suggesting advanced color coding mechanisms.

Key Points

  • The aim is to investigate how pigeons encode color information in their entopallium during visual processing.
  • Conducted multi-site multi-unit recordings from the pigeon entopallium.
  • Presented multi-category images varying in hue, luminance, and saturation to record neural responses.
  • Analyzed population-level responses to assess hue selectivity and encoding mechanisms.
  • Entopallium sites exhibited strong, consistent hue selectivity despite changes in luminance and saturation.
  • Population responses suggested gain modulation as the primary mechanism for color encoding.
  • Distinct representational geometry aligned with perceptual color axes, outperforming category-related correlations.

Cite This Study

Qingzhi et al. (2026) studied this question.

synapsesocial.com/papers/69e31f1a40886becb653e854https://doi.org/10.24272/j.issn.2095-8137.2025.568
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