Paul is coming down with the flu, but he eats spaghetti anyway and subsequently becomes violently ill. A month later he sees that spaghetti is being served in the dining hall and he is overcome by nausea. What type of learning is illustrated by this episode?

"six months ago, several of molly's friends joined the trimtime fitness center. each of them participated in trimtime's weight-reduction and fitness regimen. all reported substantial weight reduction, and all are visibly slimmer. molly is convinced. she joins trimtime and enrolls in the program, hoping and expecting to see the same results. she is especially delighted to learn that trimtime had adjusted its program to make it even more effective in a shorter period of time." what is the feature in question/attribute of interest in this argument?