Individual differences in neonatal "imitation" fail to predict early social cognitive behaviour

Area of Science:

• Developmental Psychology
• Cognitive Neuroscience
• Human Behavior

Background:

• The hypothesis that neonates imitate from birth is influential but increasingly challenged.
• A large longitudinal study found no evidence of neonatal imitation.
• A subsequent analysis claimed imitation of tongue protrusion, a claim contested here.

Purpose of the Study:

• To investigate if individual differences in neonatal imitation predict later social cognitive behaviors.
• To re-evaluate the claim of neonatal tongue protrusion imitation and its predictive validity.
• To test the foundational role of a "like me" mechanism in early social cognition.

Main Methods:

• Utilized a subset (N=71) of infants from a comprehensive longitudinal study.
• Measured neonatal "imitation" (tongue protrusion) and later social cognitive behaviors (object-directed imitation, joint attention, synchronous imitation, mirror self-recognition) up to 18 months.
• Employed statistical analyses, including correlation (Spearman) and Bonferroni correction, to assess predictive relationships.

Main Results:

• Individual scores for neonatal tongue protrusion "imitation" did not predict any later-developing social cognitive behaviors.
• The average correlation was near zero (r_s = 0.027) with p values > .999 after Bonferroni correction.
• Results contradict the claim that neonatal imitation, even of tongue protrusion, is foundational to social cognition.

Conclusions:

• Neonatal imitation, specifically tongue protrusion, does not predict subsequent social cognitive development.
• The findings challenge the "like me" mechanism as a foundational element of human social cognition present from birth.
• This study underscores the need for robust evidence in developmental psychology, particularly concerning early imitation claims.