More off the mark is a chapter by Gardner and Price on sociophysiology and depression, which, as an evolutionary model, employs an involutional physiological explanation of depression. The model generates a number of explanatory hypothetical constructs. Most noteworthy among them is the involuntary subordinate strategy, which is defined as an absence of behavior and somehow best compared to hibernation. Using "propensity physiological states" that antedate language—and human beings—as an explanation of present-day depression is not what I understand the authors of the introductory chapter to have in mind. However, this chapter does provide abundant material for debate on theoretical and ethical issues by referring to such treatment strategies as the following: "One marital therapist, treating a woman with depression, successfully gave the antidepressant to the husband to take himself, rather than to the wife."