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Sensory
Sensory Integration
How fish brains combine input from vision, lateral line, hearing, smell, taste, and (in some) electroreception into a unified perception of the aquatic world.
System: Nervous Level: Advanced Discipline: Endocrinology
📖 Overview
Fish are not simply less-capable versions of terrestrial vertebrates - they perceive their world through senses we lack. The lateral line senses displacement; electroreception detects fields; UV vision reveals hidden patterns; polarized light aids navigation. Their optic tectum and cerebellum integrate all of this in real time, producing behaviors that appear intuitive but reflect complex sensory computation.
🔑 Key Concepts
Optic tectum, cerebellum, sensory hierarchies, cross-modal integration.
✨ Fun Fact
An archerfish visually calculates the refraction of light through water, adjusts for it, and spits water droplets at insects on overhanging leaves with sub-centimeter accuracy - all in real time.