Altering context speech rate can cause words to appear or disappear.
Psychol Sci
; 21(11): 1664-70, 2010 Nov.
Article
em En
| MEDLINE
| ID: mdl-20876883
ABSTRACT
Speech is produced over time, and this makes sensitivity to timing between speech events crucial for understanding language. Two experiments investigated whether perception of function words (e.g., or, are) is rate dependent in casual speech, which often contains phonetic segments that are spectrally quite reduced. In Experiment 1, talkers spoke sentences containing a target function word; slowing talkers' speech rate around this word caused listeners to perceive sentences as lacking the word (e.g., leisure or time was perceived as leisure time). In Experiment 2, talkers spoke matched sentences lacking a function word; speeding talkers' speech rate around the region in which the function word had been embedded in Experiment 1 caused listeners to perceive a function word that was never spoken (e.g., leisure time was perceived as leisure or time). The results suggest that listeners formed expectancies based on speech rate, and these expectancies influenced the number of words and word boundaries perceived. These findings may help explain the robustness of speech recognition when speech signals are distorted (e.g., because of a casual speaking style).
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Mascaramento Perceptivo
/
Atenção
/
Semântica
/
Acústica da Fala
/
Percepção da Fala
/
Comportamento Verbal
/
Compreensão
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article