grivas textbook didn't seem to explain the results properly. why did one group of rats reject the water when there was a clicking sound and one group didn't care when both groups of rats were subect to flashing lights and a clicking sound?
i thought that the group that got the illness, associated the illness with the saccharine flavuored water and therefore avioded the saccharine flavoured water but did not mind the bells, noise etc which was shown when they tasted unflavoured water.
The group that got the shock was associated the shock with the bells and noise and avoided any type of water that was associated with the bells and noise. However did not mind the saccharine flavioured water by itself.
the findings suggest that the 2 different groups of rats associated their "displeasure" with different things and thus animals tend to associate aversive stimuli in ways that foster their survival.
I found the book unclear as well and was tempted to use my A+ book using another of Garcia'a experiments but thought that the content would not be tested on.
Hope that helps. not sure if its 100% but hopefully it is because thats what I wrote on my SAC