If you ’ve ever mixed up your siblings ’ name or incidentally visit a class penis by your dog ’s name , you ’re not alone . accord to arecent studypublished in the journalMemory and Cognition , there are consistent , discernible patterns to the way we mingle up names .

The study , which was lead by researcher at Duke , based its findings on five survey of over 1700 respondent . It find that name commixture - ups ( call one soul by another ’s name ) unremarkably come about within the same human relationship class . For case , we ’re most likely to merge up folk member with family members , and friends with friends . We ’re considerably less likely to mix in up figure across relationship family — for instance , calling a sib by a friend ’s name , or a cobalt - worker by a family member ’s name .

“ It ’s a cognitive mistake we make , which expose something about who we consider to be in our chemical group , ” researcher David Rubinexplained . “ It ’s not just random . ”

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The study also found that phonic similarity between names sometimes contributed to mixture - ups , though to a lesser degree than relationship category . Physical similarities between people , meanwhile , were not a significant factor in name swapping . For example , parents were just as likely to conflate up the names of their child whether or not they looked alike , or were the same sex . hoi polloi even mix up the name of kinsperson members with that of the family dog .

Interestingly , the study find that the same was n’t rightful for bozo owners . Researchers are n’t sure why hoi polloi were unlikely to integrate up cat names , though they believe it may have to do with the fact that cats are less probable to react to their epithet or   come when cry . They also note that the phenomenon may utter to the unique bond homo seem to have with dogs . “ I ’ll preface this by say I have cats and I have a go at it them , ” research worker Samantha Deffler said . “ But our study does seem to add to grounds about the special relationship between masses and firedog . ”