What resolves this contention: {'position': 'All addictive drugs ultimately inc…

What resolves this contention: {'position': 'All addictive drugs ultimately increase dopamine in the nucleus accumbens, which is necessary and sufficient for reinforcement', 'supporting_dois': ['10.1111/adb.70121', '10.3390/cells14181472', '10.1017/erm.2025.10024'], 'cite_keys': []} / {'position': 'Dopamine-independent reinforcement mechanisms exist; the convergence model is an oversimplification that does not account for psychedelics, some dissociatives, or the full complexity of non-dopaminergic reward pathways', 'supporting_dois': ['10.3390/molecules31030545', '10.1038/s41380-025-03341-1', '10.1186/s40337-024-01186-7'], 'cite_keys': []}