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Comparing social reciprocity in preserved speech variant and typical Rett syndrome during the early years of life

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Authors
Townend, G.
Bartl-Pokorny, K.
Sigafoos, J.
Curfs, L.
Bölte, Sven
Poustka, L.
Einspieler, C.
Marschik, P.
Date
2015
Type
Journal Article

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Townend, G. and Bartl-Pokorny, K. and Sigafoos, J. and Curfs, L. and Bölte, S. and Poustka, L. and Einspieler, C. et al. 2015. Comparing social reciprocity in preserved speech variant and typical Rett syndrome during the early years of life. Research in Developmental Disabilities. 43-44: pp. 80-86.
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Research in Developmental Disabilities
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School of Occupational Therapy and Social Work
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Abstract

This study compared early markers of social reciprocity in children with typical Rett syndrome (RTT) and in those with the preserved speech variant (PSV) of RTT. Retrospective video analysis of 10 toddlers with typical RTT and five with PSV investigated participants' orientation to their name being called between the ages of 5 and 24 months, prior to their diagnosis. From analysis of the recordings two distinct profiles were apparent. Although response rate was higher in girls with typical RTT than PSV at 5 to 8 months this noticeably reversed from 9 to 12 months onwards. By two years of age there was a markedly higher rate and range of responses from girls with PSV. This study contributes to the delineation of different profiles for the variants of RTT.