# Polysemia as a concept to understand the encoding of sensory information

**Authors:** Christian Ethier, Zohreh Vaziri, Martin Deschênes

PMC · DOI: 10.3389/fnins.2025.1588437 · Frontiers in Neuroscience · 2025-05-14

## TL;DR

The paper explores how sensory information in the brain can have multiple meanings based on context, similar to how words can have different meanings.

## Contribution

The novel idea is that sensory signals are polysemic, influenced by emotional and motivational states.

## Key findings

- Sensory signals in the trigeminal nuclei of rats are interpreted based on the animal's internal state.
- Inhibitory circuits in the brain help gate and modulate sensory information dynamically.

## Abstract

In this article, we explore the concept of polysemia in sensory information processing within the brain. We suggest that, just as words can have different meanings based on context, sensory inputs are interpreted differently depending on the animal’s current state and behavior. Focusing on the trigeminal sensory nuclei in rats, we highlight the role of inhibitory circuits in gating sensory information and propose that sensory signals are polysemic, with their meaning influenced by emotional, hormonal, and motivational factors.

## Linked entities

- **Species:** Rattus norvegicus (taxon 10116)

## Full-text entities

- **Species:** Rattus norvegicus (brown rat, species) [taxon 10116]

## Full text

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## Figures

1 figure with captions in the complete paper: https://tomesphere.com/paper/PMC12116520/full.md

## References

9 references — full list in the complete paper: https://tomesphere.com/paper/PMC12116520/full.md

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Source: https://tomesphere.com/paper/PMC12116520