Final answer:
The technique developed in the 1980s for treating Parkinson's disease and certain psychological disorders, including depression, is Deep Brain Stimulation (DBS). DBS helps regulate brain impulses and modulate neurotransmitters. It is used alongside other treatments for depression, such as psychotherapy and various medications.
Step-by-step explanation:
The technique developed in the 1980s for treating the symptoms of Parkinson's disease as well as certain psychological disorders, including depression, is Deep Brain Stimulation (DBS). DBS is a surgical procedure that involves implanting electrodes within certain areas of the brain. These electrodes produce electrical impulses that regulate abnormal impulses, or affect certain cells and chemicals within the brain. The uses of DBS are not limited to Parkinson's disease; it has been found effective in treating a variety of conditions, including depression, by modulating neurotransmitters and reshaping neural circuitries over time.
Treatments for depression can also include psychotherapy, electroconvulsive therapy, monoamine oxidase inhibitors (MAO inhibitors), and/or selective serotonin reuptake inhibitors (SSRIs). These therapies work through different mechanisms such as blocking certain enzymes or reuptake processes to increase neurotransmitter levels in the brain, consequently aiding in the alleviation of depressive symptoms.