Unraveling Cross-Modal Development in Animals: Neural Substrate, Functional Coding and Behavioral Readout

Area of Science:

• Neuroscience
• Developmental Biology
• Sensory Systems

Background:

• Organism survival depends on sensory abilities, necessitating rapid early-life development.
• Sensory systems require receptors, interconnected networks, and processing capabilities for uni- and multisensory information.
• Optimizing sensory circuits demands rapid plastic changes during periods of neuroplasticity.

Purpose of the Study:

• To review mechanisms of sensory processing and network complexity.
• To summarize developmental principles of neuronal and multisensory functioning.
• To elucidate the neural substrate of multisensory development using animal research.

Main Methods:

• Review of animal research on sensory processing mechanisms.
• Analysis of network complexity, temporal, and spatial precision in sensory coding.
• Examination of developmental aspects of neuronal and multisensory integration.

Main Results:

• Sensory processing mechanisms show high similarity within and between systems.
• Precise wiring is crucial for salient stimulus processing and feature binding.
• Animal studies reveal common principles and mechanisms in multisensory development.

Conclusions:

• Developmental principles of sensory coding are likely similar across systems.
• Rapid maturation of sensory abilities is essential for perceptual and behavioral functions.
• Animal research provides critical insights into human multisensory development.