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Autism Research and Treatment
Volume 2018 (2018), Article ID 6873412, 7 pages
Research Article

Role of Inner Speech on Serial Recall in Children with ASD: A Pilot Study Using the Luria Hand Test

1Graduate School of Education, Tokyo Gakugei University, 4-1-1 Nukuikita-machi, Kogane City, Tokyo 184-8501, Japan
2Department of Elementary Education, Ibaraki Christian University, 6-11-1 Omika-cho, Hitachi City, Ibaraki 319-1221, Japan
3Faculty of Education, Tokyo Gakugei University, 4-1-1 Nukuikita-machi, Koganei City, Tokyo 184-8501, Japan

Correspondence should be addressed to Shota Mitsuhashi; and Shogo Hirata;

Shota Mitsuhashi and Shogo Hirata contributed equally to this work.

Received 28 November 2017; Accepted 6 February 2018; Published 14 March 2018

Academic Editor: Bennett L. Leventhal

Copyright © 2018 Shota Mitsuhashi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study was conducted to investigate the relation between the effect of articulatory suppression on the serial recall and severity of social impairments among children with autism spectrum disorders (ASD). The Luria hand test (LHT) was administered to evaluate the capacity for serial recall in 13 children with ASD. The LHT was administered under three conditions: control, under articulatory suppression, and under spatial suppression. Performance on the LHT of children with ASD was significantly lower in terms of both articulatory suppression and the spatial suppression condition. Moreover, the severity of social impairment in children with ASD was related to individual differences of effects of articulatory suppression on the LHT, but not with effects of spatial suppression. These results support the notion that dialogic inner speech which mediates complex cognitive abilities has inherently social origins.