Zbigniew Pańpuch in Studia Gilsoniana.
"The aim of this paper is to discuss the problem of the human body as to whether it is wholly and directly influenced by the rational forces of the soul, or it contains something instinctive or unconscious that can exert a determinative influence on human actions and behavior. Drawing on Thomistic anthropology, the author gives his interpretation of organic factors in the human body and their place in the free and rational actions of the human being through the case study of sensual appetitive powers. The latter, he concludes, are what simplify the execution of desires of the soul."
See Thomas Aquinas, Summa Theologica, in Great Books of the Western World (first edition, 52 Vol., 1952) volumes 19-20, and Great Books of the Western World (second edition, 60 Vol., 1990) volumes 17-18.