> as lemmas

1817 S. T. Coleridge Biographia Literaria I. ix. 139 These delusions were such, as might be anticipated..from his ignorance of rational psychology.

1849 L. P. Hickok Rational Psychol. 21 Those a priori conditions which give the necessary and universal laws to experience, and by which intelligence itself is alone made intelligible, are the elements for a higher Psychological Science which we term Rational.

1861 J. S. Mill Let. in A. Bain John Stuart Mill (1882) iv. 118 It will enable me..to do the kind of service which I am capable of to rational psychology.

1892 W. James Coll. Ess. & Rev. (1920) xx. 321 We certainly need something more radical than the old division into ‘rational’ and ‘empirical’ psychology, both to be treated by the same writer between the covers of the same book.

1946 T. D. Weldon Introd. Kant's Critique Pure Reason 115 Rational psychology claims to expound the nature of the soul or self in so far as this can be done by pure reason alone.

1992 Philos. Rev. 101 400 Hegel's battle with dualism culminates in the rejection of rational psychology and its idea of a soul as a thing.