Development and aging of human spinal cord circuitries

Area of Science:

• Neuroscience
• Developmental Biology
• Motor Control

Background:

• The spinal cord's neural motor circuitries are crucial for translating sensory information into purposeful movements, enabling interaction with the environment.
• These circuitries are fundamental to motor control, receiving input from various nervous system components.

Purpose of the Study:

• To review the establishment and developmental shaping of spinal cord motor circuitries.
• To explore how aging and physiological changes influence these circuitries.
• To highlight the adaptability of spinal motor circuits throughout life.

Main Methods:

• This is a review article, synthesizing existing research on spinal cord motor circuitries.
• The discussion covers developmental processes, environmental influences, and aging effects.
• Focus is on the plasticity and adaptive capabilities of these neural networks.

Main Results:

• Spinal cord motor circuitries are established during early development and are shaped by bodily and environmental demands.
• Aging and physiological changes lead to adaptations in spinal cord motor circuitry activity.
• The complex connectivity allows for diverse movement generation and adaptation.

Conclusions:

• Spinal cord motor circuitries exhibit significant adaptability throughout life, from development to aging.
• These neural networks are highly plastic, allowing for adjustments to changing internal and external conditions.
• Understanding these adaptive mechanisms is key to comprehending motor control and its changes over time.