 Late medieval philosophical compendia on emotions include Peter of Ailly’s influential Tractatus de anima (c. 1380), which eclectically employs the views of the anonymous thirteenth-century compilation of the views of Albert the Great, Summa naturalium, and Gregory of Rimini’s brief remarks on the theories of Scotus, Ockham, Auriol, and Wodeham on the passions of the will and the relationship between love and pleasure. Ailly’s work was one of the sources for introductions used in psychology teaching at the universities such as the Erfurtian treatises by John of Lutrea and Bartholomeus Arnoldi of Usingen in the late fifteenth- and early sixteenth-centuries (Kärkkäinen, 2009). Usingen applied the Buridanian version of the psychology of  complacentia and displicentia and regarded them as non-accountable first movements (Saarinen 2011: 106–107). John Gerson’s treatises on emotions included long lists of passions classified under the eleven types of Aquinas’s taxonomy (Oeuvres IX, 1–25, 155–61).