Patton, R. A., & Lazovik, A. D. (1946). Sensory pre-conditioning and the convulsions associated with magnesium deficiency in the rat. Journal of Comparative Psychology, 39(4), 265-273.
http://dx.doi.org/10.1037/h0056329
In these experiments 44 albino rats were given preconditioning combinations of sound with light, shock, and rotation. The animals were then rendered sensitive to sound-induced convulsions through magnesium deficiency. Although consistently sensitive to sound, all animals failed to become sensitive to the conditioned stimuli just listed. (PsycINFO Database Record (c) 2016 APA, all rights reserved)