Posture affects how robots and infants map words to objects

PloS One
Anthony F MorseLinda Smith

Abstract

For infants, the first problem in learning a word is to map the word to its referent; a second problem is to remember that mapping when the word and/or referent are again encountered. Recent infant studies suggest that spatial location plays a key role in how infants solve both problems. Here we provide a new theoretical model and new empirical evidence on how the body - and its momentary posture - may be central to these processes. The present study uses a name-object mapping task in which names are either encountered in the absence of their target (experiments 1-3, 6 & 7), or when their target is present but in a location previously associated with a foil (experiments 4, 5, 8 & 9). A humanoid robot model (experiments 1-5) is used to instantiate and test the hypothesis that body-centric spatial location, and thus the bodies' momentary posture, is used to centrally bind the multimodal features of heard names and visual objects. The robot model is shown to replicate existing infant data and then to generate novel predictions, which are tested in new infant studies (experiments 6-9). Despite spatial location being task-irrelevant in this second set of experiments, infants use body-centric spatial contingency over temporal conting...Continue Reading

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Nov 26, 2015·Frontiers in Psychology·Theresa S S Schilhab
Apr 6, 2016·Frontiers in Psychology·Serge Thill, Katherine E Twomey
Apr 30, 2016·Cognitive Science·Larissa K SamuelsonJohn P Spencer
Sep 25, 2017·Cognitive Science·Katherine E TwomeyGert Westermann
Oct 28, 2019·Psychonomic Bulletin & Review·Francesco Ianì
May 23, 2018·Topics in Cognitive Science·Gabriella ViglioccoCourtenay Norbury

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