Depression subtyping proceeded by biology and classification, not etiology

Evidence

The main problem was still the lack of diagnostic consensus. Two paths were followed simultaneously, one feeding on the other, in an attempt to define with some precision, on bases that were not etiological, depression’s subcategories – a task now considered “crucial.” … One path involved medication for the mind, while the other involved classification. The latter resulted in the third edition of the Diagnostic and Statistical Manual of Mental Disorders, published in the United States in 1980. — Alain Ehrenberg, The Weariness of the Self, 660

Categorization

• DEFINE: Distinguishes the two non-etiological research paths — biological markers vs classification — that produced the DSM-III.
• XREF: connects to: Depression diagnosis shifted from causes to observable subtypes around 1975 — Alain Ehrenberg, The Weariness of the Self: Diagnosing…, 627; Depression theory is split between guilt-based and deficiency-based models. — Alain Ehrenberg, The Weariness of the Self: Diagnosing…, 171; Depression became defined as whatever antidepressants cured — Alain Ehrenberg, The Weariness of the Self: Diagnosing…, 674 (+1 more)