Comprehensive longitudinal study challenges the existence of neonatal imitation in humans

Janine Maree Oostenbroek; Thomas Suddendorf; Mark Nielsen; Jonathan Redshaw; Siobhan Kennedy-Costantini; Jacqueline Davis; Sally  Clark; Virginia Slaughter

doi:10.1016/j.cub.2016.03.047

Comprehensive longitudinal study challenges the existence of neonatal imitation in humans

Janine Maree Oostenbroek, Thomas Suddendorf, Mark Nielsen, Jonathan Redshaw, Siobhan Kennedy-Costantini, Jacqueline Davis, Sally Clark, Virginia Slaughter

Psychology

Research output: Contribution to journal › Article › peer-review

Abstract

Human children copy others’ actions with high fidelity, supporting early cultural learning and assisting in the development and maintenance of behavioral traditions. Imitation has long been assumed to occur from birth, with influential theories placing an innate imitation module at the foundation of social cognition (potentially underpinned by a mirror neuron system). Yet, the very phenomenon of neonatal imitation has remained controversial. Empirical support is mixed and interpretations are varied, potentially because previous investigations have relied heavily on cross-sectional designs with relatively small samples and with limited controls. Here we report surprising results from the most comprehensive longitudinal study of neonatal imitation to date. We presented infants (N = 106) with nine social and two non-social models and scored their responses at one, three, six, and nine weeks of age. Longitudinal analyses indicated that the infants did not imitate any of the models, as they were just as likely to produce the gestures in response to control models as they were to matching models. Previous positive findings were replicated in limited cross-sections of the data, but the overall analyses confirmed these findings to be mere artefacts of restricted comparison conditions. Our results undermine the idea of an innate imitation module and suggest that earlier studies reporting neonatal imitation were methodologically limited.

Original language	English
Number of pages	6
Journal	Current Biology
Early online date	5 May 2016
DOIs	https://doi.org/10.1016/j.cub.2016.03.047
Publication status	E-pub ahead of print - 5 May 2016

Bibliographical note

Keywords

imitation
neonates
development

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10.1016/j.cub.2016.03.047

Cite this

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title = "Comprehensive longitudinal study challenges the existence of neonatal imitation in humans",

abstract = "Human children copy others{\textquoteright} actions with high fidelity, supporting early cultural learning and assisting in the development and maintenance of behavioral traditions. Imitation has long been assumed to occur from birth, with influential theories placing an innate imitation module at the foundation of social cognition (potentially underpinned by a mirror neuron system). Yet, the very phenomenon of neonatal imitation has remained controversial. Empirical support is mixed and interpretations are varied, potentially because previous investigations have relied heavily on cross-sectional designs with relatively small samples and with limited controls. Here we report surprising results from the most comprehensive longitudinal study of neonatal imitation to date. We presented infants (N = 106) with nine social and two non-social models and scored their responses at one, three, six, and nine weeks of age. Longitudinal analyses indicated that the infants did not imitate any of the models, as they were just as likely to produce the gestures in response to control models as they were to matching models. Previous positive findings were replicated in limited cross-sections of the data, but the overall analyses confirmed these findings to be mere artefacts of restricted comparison conditions. Our results undermine the idea of an innate imitation module and suggest that earlier studies reporting neonatal imitation were methodologically limited. ",

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author = "Oostenbroek, {Janine Maree} and Thomas Suddendorf and Mark Nielsen and Jonathan Redshaw and Siobhan Kennedy-Costantini and Jacqueline Davis and Sally Clark and Virginia Slaughter",

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AU - Oostenbroek, Janine Maree

AU - Suddendorf, Thomas

AU - Nielsen, Mark

AU - Redshaw, Jonathan

AU - Kennedy-Costantini, Siobhan

AU - Davis, Jacqueline

AU - Clark, Sally

AU - Slaughter, Virginia

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N2 - Human children copy others’ actions with high fidelity, supporting early cultural learning and assisting in the development and maintenance of behavioral traditions. Imitation has long been assumed to occur from birth, with influential theories placing an innate imitation module at the foundation of social cognition (potentially underpinned by a mirror neuron system). Yet, the very phenomenon of neonatal imitation has remained controversial. Empirical support is mixed and interpretations are varied, potentially because previous investigations have relied heavily on cross-sectional designs with relatively small samples and with limited controls. Here we report surprising results from the most comprehensive longitudinal study of neonatal imitation to date. We presented infants (N = 106) with nine social and two non-social models and scored their responses at one, three, six, and nine weeks of age. Longitudinal analyses indicated that the infants did not imitate any of the models, as they were just as likely to produce the gestures in response to control models as they were to matching models. Previous positive findings were replicated in limited cross-sections of the data, but the overall analyses confirmed these findings to be mere artefacts of restricted comparison conditions. Our results undermine the idea of an innate imitation module and suggest that earlier studies reporting neonatal imitation were methodologically limited.

AB - Human children copy others’ actions with high fidelity, supporting early cultural learning and assisting in the development and maintenance of behavioral traditions. Imitation has long been assumed to occur from birth, with influential theories placing an innate imitation module at the foundation of social cognition (potentially underpinned by a mirror neuron system). Yet, the very phenomenon of neonatal imitation has remained controversial. Empirical support is mixed and interpretations are varied, potentially because previous investigations have relied heavily on cross-sectional designs with relatively small samples and with limited controls. Here we report surprising results from the most comprehensive longitudinal study of neonatal imitation to date. We presented infants (N = 106) with nine social and two non-social models and scored their responses at one, three, six, and nine weeks of age. Longitudinal analyses indicated that the infants did not imitate any of the models, as they were just as likely to produce the gestures in response to control models as they were to matching models. Previous positive findings were replicated in limited cross-sections of the data, but the overall analyses confirmed these findings to be mere artefacts of restricted comparison conditions. Our results undermine the idea of an innate imitation module and suggest that earlier studies reporting neonatal imitation were methodologically limited.

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