[rossdavidh]

So, I totally believe some cats are intelligent enough to understand that a particular human vocalization is usually "aimed" at them. However...looking at the boxplots, the data is underwhelming. There is a huge overlap between the congruent and incongruent response times, even in household cats. If anything, this is evidence that fewer cats than expected notice the incongruence.

The alternative explanation being, of course, that very few cats care. And, really, in these circumstances, why should they? But the boxplots demonstrate that the effect here is marginal.