1. Arbit, J., 1958. Shock motivated serial discrimination learning and the chemical block of autonomic impulses, J. Comp. Physiol. Psychol. 51: 199–201.
2. Artusio, J. F., 1954. Di-ethyl ether analgesia: A detailed description of the first stage ofether anesthesia in man, J. Pharmacol. Exp. Therap. III: 343–348.
3. Auld, F., 1951. The effects of tetraethylammonium on a habit motivated by fear, J. Comp. Physiol Psychol. 44: 565–574.
4. Barnhart, S. S. and Abbott, D. W., 1967. Dissociation of learning and meprobamate, Psychol. Rep. 20: 520–522.
5. Barry, H., Miller, N. E., and Tidd, G. E., 1962. Control for stimulus change while testing effects of amobarbital on conflict, J. Comp. Physiol. Psychol. 55: 1071–1074.