As was the case for associative structures, associative transitions in thought are not just a logical possibility. There are particular empirical differences associated with associative transitions versus inferential transitions. Associative transitions tend to move across different content domains, whereas inferential transitions tend to stay on a more focused set of contents. These differences have been seen to result in measurable differences in mood: associative thinking across topics bolsters mood when compared to logical thinking on a single topic (Mason and Bar 2012).