Reevaluating thalamic contributions to pain: A translational framework for precision neuromodulation

Area of Science:

• Neuroscience
• Pain Research
• Neuromodulation

Background:

• The thalamus is crucial for processing acute and chronic pain.
• Identifying specific thalamic targets for pain management remains a significant challenge.

Purpose of the Study:

• To re-examine thalamic nuclei functions in pain processing.
• To critically evaluate targeted neuromodulation strategies for pain management.
• To guide the advancement of precision pain medicine.

Main Methods:

• Integration of cross-species evidence.
• Functional re-examination of thalamic nuclei in pain.
• Critical evaluation of targeted neuromodulation strategies.

Main Results:

• Sensory and affective pain dimensions are intertwined and context-dependent.
• Ventral and posterior thalamic nuclei (VPTN) are involved in sensory discrimination and hypersensitivity.
• Medial and intralaminar nuclei (MITN) integrate sensory-affective signals and emotional comorbidities.

Conclusions:

• Key translational challenges include anatomical ambiguity, undefined stimulation parameters, species differences, and neuroplasticity.
• A precision neuromodulation framework with AI-driven adaptive closed-loop systems is proposed.
• This approach could advance chronic pain therapy towards personalized, mechanism-based treatments.