For the cognitive aspect of depression a nice comprehensive and dense video I found is [0], key factors in slide at 24:10 and the reasons for this approach are

For the cognitive aspect of depression a nice comprehensive and dense video I found is [0], key factors in slide at 24:10 and the reasons for this approach are at a slide at 23:00 including why a medication only approach is intractable in the long term. [0]: https://youtu.be/TVgQ_tgWMyU https://youtu.be/TVgQ_tgWMyU