Electroconvulsive therapy remains one of psychiatry's most effective interventions for severe, treatment-resistant depression and mania — effective precisely because it acts on brain-wide processes rather than individual neurotransmitter pathways. Transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), and deep brain stimulation represent the expanding frontier of non-pharmacological, hardware-based interventions for intractable mental illness. The stigma attached to these treatments often exceeds the reality of their current form and evidence base.
Patan