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Spikes alone do not behavior make: why neuroscience needs biomechanics.

E D Tytell¹, P Holmes, A H Cohen

¹Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA. tytell@jhu.edu

Current Opinion in Neurobiology

|June 21, 2011

Summary

Neural circuits interact with the physical world through biomechanics. Understanding neural activity requires integrating the nervous system with the body's physical properties and environment.

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Area of Science:

Neuroscience
Biomechanics
Systems Biology

Background:

Neural circuits are influenced by physical interactions with the environment.
Sensory inputs and motor outputs are constrained by physics and biomechanics.

Purpose of the Study:

To explore the integration of neural circuits with biomechanics.
To understand how physical properties influence neural control of movement.

Main Methods:

Review of existing literature on neural circuits and biomechanics.
Theoretical discussion of neuromechanical systems.

Main Results:

Animal bodies possess natural stable motions requiring minimal neural control.
The nervous system can modify movements by altering mechanical properties like stiffness.
Mechanical properties offer robustness against perturbations without requiring sensory reflexes.

Conclusions:

A complete neuromechanical perspective is essential for understanding neural circuitry and behavior.
Neuroscientists and biomechanicians must collaborate for a holistic view.