Intra-oral sensory function is a complex perception and difficult
to assess clinically. On the other hand, it seems important to
establish intra-oral sensory function in order to give appropriate
advice regarding therapy in children with speech problems. The
tactile sensibility of the anterior portion of the tongue has been
suggested to be particularly important (Grossman & Hattis,
1967; Williams & LaPoint, 1971; Calhoun et al, 1992). The
stereognosis test assesses the ability to identify an object
primarily by sensory surface receptors. In an earlier case study of
a child with persistent speech difficulties intra oral sensory
stimulation produced good results regarding speech intelligibility
(Lundeborg Hammarström & McAllister 2007). Thus, could a low
result on a test of intra oral stereognosis serve as a diagnostic
marker suggesting treatment including intra oral sensory
The aim of the present study was to investigate intra oral
stereognosis in children with persistent speech problems.
Twenty children with persistent speech problems including childhood
apraxia of speech - CAS, twelve girls and eight boys, were tested
using a set of four shapes in two sizes based on Calhoun et al,
(1992) to assess intra oral stereognosis. Results were compared to
a previous study of intra oral stereognosis in typically developed
children (Norström & Sjöberg 2003). Statistical analyses to
assess significance will be provided.
The children with CAS showed lower results on both the large and
small shapes as compared to the typically developed children.
The relevance of intra oral sensory function in relation to choice
of therapy will be discussed.
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Lundeborg Hammarström, I., McAllister, A. (2007). Treatment outcome
using intra-oral sensory stimulation and EPG in a 6 year old child
with persistent speech difficulties. Log Phon Vocol, 32 (2):71
Norström H, Sjöberg P. (2003). Intraoral stereognosi hos 4:0
- 5:5 åriga barn med normal talutveckling. Masters thesis in
Speech and Language Pathology, Karolinska Institue.
Williams WN, LaPoint LL. (1971). Intra-oral recognition of
geometric forms by normal subjects. Perc Mot Skills, 32,
Istanbul: Anadolu University , 2008. 142- p.