“…From the theoretical point of view, both drugs, but particularly apomorphine, have serious defects and attempts are now being made to produce aversion by other means, for example, the association of alcohol with an electric shock (McGuire and Vallance 1964; Quinn and Patten 1964). Recently Canadian workers (Sanderson, Campbell and Laverty 1963) have attempted to produce a phobia to alcohol by associating it with respiratory paralysis induced by intravenous scoline.…”