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Sensing External and Self-Motion with Hair Cells: A Comparison of the Lateral Line and Vestibular Systems from a Developmental and Evolutionary Perspective
Journal article   Peer reviewed

Sensing External and Self-Motion with Hair Cells: A Comparison of the Lateral Line and Vestibular Systems from a Developmental and Evolutionary Perspective

Boris P Chagnaud, Jacob Engelmann, Bernd Fritzsch, Joel C Glover and Hans Straka
Brain, behavior and evolution, Vol.90(2), pp.98-116
2017
DOI: 10.1159/000456646
PMCID: PMC5653922
PMID: 28988233
url
https://www.ncbi.nlm.nih.gov/pmc/articles/5653922View
Open Access

Abstract

Detection of motion is a feature essential to any living animal. In vertebrates, mechanosensory hair cells organized into the lateral line and vestibular systems are used to detect external water or head/body motion, respectively. While the neuronal components to detect these physical attributes are similar between the two sensory systems, the organizational pattern of the receptors in the periphery and the distribution of hindbrain afferent and efferent projections are adapted to the specific functions of the respective system. Here we provide a concise review comparing the functional organization of the vestibular and lateral line systems from the development of the organs to the wiring from the periphery and the first processing stages. The goal of this review is to highlight the similarities and differences to demonstrate how evolution caused a common neuronal substrate to adapt to different functions, one for the detection of external water stimuli and the generation of sensory maps and the other for the detection of self-motion and the generation of motor commands for immediate behavioral reactions.
Motion Proprioception - physiology Hair Cells, Vestibular - physiology Rhombencephalon - physiology Biological Evolution Rhombencephalon - cytology Animals Hair Cells, Vestibular - cytology Lateral Line System - physiology Lateral Line System - growth & development Touch - physiology Rhombencephalon - growth & development Lateral Line System - cytology

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