What resolves this contention: Disagreement turns on whether driver/modulator c…

What resolves this contention: Disagreement turns on whether driver/modulator categories defined in sensory thalamus generalize to BG-recipient thalamus. / Basal-ganglia (pallidal) inputs to BG-recipient motor thalamus are modulatory, leaving cortical glutamatergic input as the dominant driver — consistent with sensory-thalamus 'one driver + modulators' relay model. / Each motor-thalamus territory integrates multiple driver-or-driver-like inputs (cortex+BG, cortex+cerebellum) so BG inputs are not merely modulatory but contribute drive after upstream integration ('super-integrator' theory).