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Titolo:
Influences of utterance length and complexity on speech motor performance in children and adults
Autore:
Maner, KJ; Smith, A; Grayson, L;
Indirizzi:
Purdue Univ, Dept Audiol, W Lafayette, IN 47907 USA Purdue Univ W Lafayette IN USA 47907 pt Audiol, W Lafayette, IN 47907 USA
Titolo Testata:
JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH
fascicolo: 2, volume: 43, anno: 2000,
pagine: 560 - 573
SICI:
1092-4388(200004)43:2<560:IOULAC>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYNTACTIC COMPLEXITY; MOVEMENT SEQUENCES; SENTENCE; NONSTUTTERERS; DISFLUENCIES; IMITATION; STABILITY;
Keywords:
speech motor control; speech development; speech production; speech kinematics; language development;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Smith, A Purdue Univ, Dept Audiol, 1353 Heavilon Hall, W Lafayette, IN 47907 USA Purdue Univ 1353 Heavilon Hall W Lafayette IN USA 47907 47907 USA
Citazione:
K.J. Maner et al., "Influences of utterance length and complexity on speech motor performance in children and adults", J SPEECH L, 43(2), 2000, pp. 560-573

Abstract

The possible influences of utterance length and complexity on speech motorperformance were examined by assessing the effects of increased processingdemands on articulatory movement stability Eight 5-year-old children and 8young adults repeated a 6-syllable phrase in isolation (baseline condition) and embedded in sentences of low and high syntactic complexity Lower lip movements for the target phrase were analyzed to produce the spatiotemporalindex (STI), an index that reflects the stability of lip movement over 10 repetitions of the phrase. It was predicted that movement stability would be lower (reflected by higher values of the STI) for the phrase when it was spoken embedded in complex sentences and that, compared to adults, children's movement output would be more negatively affected by increased processing demands. The STI was significantly increased for the phrase spoken in thecomplex sentences compared to the baseline condition, and STIs of the children were consistently higher than those of the adults across conditions. These findings provide novel evidence that speech motor planning, execution,or both are affected by processes often considered to be relatively remotefrom the motor output stage.

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Documento generato il 12/07/20 alle ore 12:26:22