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Biomedical subjects

T M Gallagher

Publications and source records attributed to T M Gallagher.

59 records · Page 4Linked to original sources

The expressive portion of the NSST compared to a spontaneous language sample.

This study was undertaken to determine the relationship between syntactic structures produced on the expressive portion of the NSST and those produced in a spontaneous language sample. The NSST was administered to 12 children previously diagnosed as delayed in language. In addition, spontaneous language samples were collected by a speech clinician and by the child's mother. The children ranged in age from four years one month to five years 11 months. We found that 30 percent of those syntactic structures incorrectly produced on the NSST were correctly produced spontaneously in the language sample. Furthermore, the sample obtained by the clinician was significantly richer in terms of number of structures produced correctly than the sample collected by the mother. Overall results indicate that an item analysis of the expressive portion of the NSST does not present an accurate representation of the child's language performance and therefore cannot be interpreted beyond its stated purpose, namely that of a screening instrument.

California↗

Articulatory inconsistencies in the speech of normal children.

The spontaneous speech of three children about three years old was recorded and transcribed into CnV syllabic units. Cn represents any number of consonants preceding a vowel and is not lexically constrained. Inconsistent production of /s/ and /z/ was found to be related to motor sequencing constraints independent of word boundaries. The results support a model of speech physiology as well as theoretical formulations of child speech production within an adult phonological system.

Child Language↗

Contextual variables related to inconsistent /s/ and /z/ production in the spontaneous speech of children.

The relationship between phonetic context and inconsistent productions of /s/ and /z/ in the spontaneous speech of three approximately three-year-old children was investigated using a nonlexically constrained segmentation, the VCnV syllable. Cn represents any number of consonants occurring between two vowels. The results indicate that of the speech segments surrounding /s/ and /z/ only the identity of consonants following these segments was significantly related to the accuracy of /s/ and /z/ production. The implications of the data for models of speech production are discussed.

Child, Preschool↗