scholarly journals The Influence of Different Prosodic Cues on Word Segmentation

2021 ◽  
Vol 12 ◽  
Author(s):  
Theresa Matzinger ◽  
Nikolaus Ritt ◽  
W. Tecumseh Fitch
Keyword(s):  
Language Learning ◽  
Speech Segmentation ◽  
Continuous Speech ◽  
Artificial Language Learning ◽  
Prosodic Cues ◽  
German Speaking ◽  
Final Syllable ◽  
Language Universal ◽  
Study Context ◽  
Transitional Probabilities

A prerequisite for spoken language learning is segmenting continuous speech into words. Amongst many possible cues to identify word boundaries, listeners can use both transitional probabilities between syllables and various prosodic cues. However, the relative importance of these cues remains unclear, and previous experiments have not directly compared the effects of contrasting multiple prosodic cues. We used artificial language learning experiments, where native German speaking participants extracted meaningless trisyllabic “words” from a continuous speech stream, to evaluate these factors. We compared a baseline condition (statistical cues only) to five test conditions, in which word-final syllables were either (a) followed by a pause, (b) lengthened, (c) shortened, (d) changed to a lower pitch, or (e) changed to a higher pitch. To evaluate robustness and generality we used three tasks varying in difficulty. Overall, pauses and final lengthening were perceived as converging with the statistical cues and facilitated speech segmentation, with pauses helping most. Final-syllable shortening hindered baseline speech segmentation, indicating that when cues conflict, prosodic cues can override statistical cues. Surprisingly, pitch cues had little effect, suggesting that duration may be more relevant for speech segmentation than pitch in our study context. We discuss our findings with regard to the contribution to speech segmentation of language-universal boundary cues vs. language-specific stress patterns.

scholarly journals THE USE OF PROSODIC CUES IN LEARNING NEW WORDS IN AN UNFAMILIAR LANGUAGE

2012 ◽  
Vol 34 (3) ◽  
pp. 415-444 ◽  
Author(s):  
Sahyang Kim ◽  
Mirjam Broersma ◽  
Taehong Cho
Keyword(s):  
Speech Perception ◽  
Language Learning ◽  
Artificial Language ◽  
Final Position ◽  
Prosodic Features ◽  
Initial Exposure ◽  
New Words ◽  
Artificial Language Learning ◽  
Prosodic Cues ◽  
Nonnative Language

The artificial language learning paradigm was used to investigate to what extent the use of prosodic features is universally applicable or specifically language driven in learning an unfamiliar language, and how nonnative prosodic patterns can be learned. Listeners of unrelated languages—Dutch (n= 100) and Korean (n= 100)—participated. The words to be learned varied with prosodic cues: no prosody, fundamental frequency (F0) rise in initial and final position, final lengthening, and final lengthening plus F0 rise. Both listener groups performed well above chance level with the final lengthening cue, confirming its crosslinguistic use. As for final F0 rise, however, Dutch listeners did not use it until the second exposure session, whereas Korean listeners used it at initial exposure. Neither group used initial F0 rise. On the basis of these results, F0 and durational cues appear to be universal in the sense that they are used across languages for their universally applicable auditory-perceptual saliency, but how they are used is language specific and constrains the use of available prosodic cues in processing a nonnative language. A discussion on how these findings bear on theories of second language (L2) speech perception and learning is provided.

Perceptual strategies in prelingual speech segmentation

1993 ◽  
Vol 20 (2) ◽  
pp. 229-252 ◽  
Author(s):  
Jan V. Goodsitt ◽  
James L. Morgan ◽  
Patricia K. Kuhl
Keyword(s):  
The Other ◽  
Speech Segmentation ◽  
Variable Order ◽  
Order Condition ◽  
Head Turning ◽  
Prosodic Cues ◽  
Invariant Order ◽  
Trial Test ◽  
Pitch Contours ◽  
Transitional Probabilities

ABSTRACTPrevious work has suggested that infants may segment continuous speech by a BRACKETING STRATEGY that segregates portions of the speech stream based on prosodic cues to their endpoints. The two present studies were designed to assess whether infants also can deploy a CLUSTERING STRATEGY that exploits asymmetries in transitional probabilities between successive elements, aggregating elements with high transitional probabilities and identifying points of low transitional probabilities as boundaries between units. These studies examined effects of the structure and redundancy of speech context on infants' discrimination of two target syllables using an operant head-turning procedure. After discrimination training on the target syllables in isolation, discrimination maintenance was tested when the target syllables were embedded in one of three contexts. Invariant Order contexts were structured to promote clustering, whereas the Redundant and Variable Order contexts were not. Thirty-six seven-month-olds were tested in Experiment I, in which stimuli were produced with varying intonation contours; 36 eight-month-olds were tested in Experiment 2, in which stimuli were produced with comparable flat pitch contours. In both experiments, performance of the three groups was equivalent in an initial 20-trial test. However, in a second 20-trial test, significant improvements in performance were shown by infants in the Invariant Order condition. No such gains were shown by infants in the other two conditions. These studies suggest that clustering may complement bracketing in infants' discovery of units of language.

scholarly journals Statistical Speech Segmentation in Tone Languages: The Role of Lexical Tones

2017 ◽  
Vol 61 (1) ◽  
pp. 84-96 ◽  
Author(s):  
David M. Gómez ◽  
Peggy Mok ◽  
Mikhail Ordin ◽  
Jacques Mehler ◽  
Marina Nespor
Keyword(s):  
Speech Processing ◽  
Additional Data ◽  
Native Speakers ◽  
Speech Segmentation ◽  
Lexical Tones ◽  
Tone Languages ◽  
Transitional Probabilities ◽  
Lexical Processes

Research has demonstrated distinct roles for consonants and vowels in speech processing. For example, consonants have been shown to support lexical processes, such as the segmentation of speech based on transitional probabilities (TPs), more effectively than vowels. Theory and data so far, however, have considered only non-tone languages, that is to say, languages that lack contrastive lexical tones. In the present work, we provide a first investigation of the role of consonants and vowels in statistical speech segmentation by native speakers of Cantonese, as well as assessing how tones modulate the processing of vowels. Results show that Cantonese speakers are unable to use statistical cues carried by consonants for segmentation, but they can use cues carried by vowels. This difference becomes more evident when considering tone-bearing vowels. Additional data from speakers of Russian and Mandarin suggest that the ability of Cantonese speakers to segment streams with statistical cues carried by tone-bearing vowels extends to other tone languages, but is much reduced in speakers of non-tone languages.

Which came first: Infants learning language or motherese?

2004 ◽  
Vol 27 (4) ◽  
pp. 505-506 ◽  
Author(s):  
Heather Bortfeld
Keyword(s):  
Language Acquisition ◽  
Word Recognition ◽  
Language Learning ◽  
Learning Process ◽  
Building Blocks ◽  
Speech Segmentation ◽  
Learning Language

Although motherese may facilitate language acquisition, recent findings indicate that not all aspects of motherese are necessary for word recognition and speech segmentation, the building blocks of language learning. Rather, exposure to input that has prosodic, phonological, and statistical consistencies is sufficient to jump-start the learning process. In light of this, the infant-directedness of the input might be considered superfluous, at least insofar as language acquisition is concerned.

scholarly journals Zebra finches are sensitive to prosodic features of human speech

2014 ◽  
Vol 281 (1787) ◽  
pp. 20140480 ◽  
Author(s):  
Michelle J. Spierings ◽  
Carel ten Cate
Keyword(s):  
Speech Perception ◽  
Emotional State ◽  
The Other ◽  
Zebra Finches ◽  
Prosodic Features ◽  
Human Speech ◽  
Prosodic Cues ◽  
Paralinguistic Information ◽  
Final Syllable ◽  
Human Specific

Variation in pitch, amplitude and rhythm adds crucial paralinguistic information to human speech. Such prosodic cues can reveal information about the meaning or emphasis of a sentence or the emotional state of the speaker. To examine the hypothesis that sensitivity to prosodic cues is language independent and not human specific, we tested prosody perception in a controlled experiment with zebra finches. Using a go/no-go procedure, subjects were trained to discriminate between speech syllables arranged in XYXY patterns with prosodic stress on the first syllable and XXYY patterns with prosodic stress on the final syllable. To systematically determine the salience of the various prosodic cues (pitch, duration and amplitude) to the zebra finches, they were subjected to five tests with different combinations of these cues. The zebra finches generalized the prosodic pattern to sequences that consisted of new syllables and used prosodic features over structural ones to discriminate between stimuli. This strong sensitivity to the prosodic pattern was maintained when only a single prosodic cue was available. The change in pitch was treated as more salient than changes in the other prosodic features. These results show that zebra finches are sensitive to the same prosodic cues known to affect human speech perception.

scholarly journals Children’s sensitivity to phonological and semantic cues during noun class learning: evidence for a phonological bias

2018 ◽  
Author(s):  
Jennifer Culbertson ◽  
Hanna Jarvinen ◽  
Frances Haggarty ◽  
Kenny Smith
Keyword(s):  
Language Acquisition ◽  
Language Learning ◽  
Classification Systems ◽  
Developmental Changes ◽  
Artificial Language ◽  
Phonological Information ◽  
Semantic Cues ◽  
Artificial Language Learning ◽  
Cue Use ◽  
Noun Class

Previous research on the acquisition of noun classification systems (e.g., grammatical gender) has found that child learners rely disproportionately on phonological cues to determine the class of a new noun, even when competing semantic cues are more reliable in their language. Culbertson, Gagliardi, and Smith (2017) argue that this likely results from the early availability of phonological information during acquisition; learners base their initial representations on formal features of nouns, only later integrating semantic cues from noun meanings . Here, we use artificial language learning experiments to show that early availability drives cue use in children (67 year-olds). However, we also find evidence of developmental changes in sensitivity to semantics; when both cues types are simultaneously available, children are more likely to rely on phonology than adults. Our results suggest that early availability and a bias favoring phonological cues both contribute to children’s over-reliance on phonology in natural language acquisition.

Grammatical morphology in language–impaired children acquiring English or German as their first language: A functional perspective

1992 ◽  
Vol 13 (2) ◽  
pp. 115-129 ◽  
Author(s):  
Katrin Lidner ◽  
Judith R. Johnston
Keyword(s):  
Language Learning ◽  
First Language ◽  
Sentence Production ◽  
Expressive Vocabulary ◽  
Language Impaired ◽  
Functional Perspective ◽  
Grammatical Morphology ◽  
German Speaking ◽  
English Speaking ◽  
Impaired Children

ABSTRACTFourteen matched pairs of German-speaking and English-speaking language-impaired children, aged 4;5–6;11, were tested for their knowledge of grammatical morphology and expressive vocabulary, using the Grammatical Closure subtest of the ITPA or its German adaptation, Grammatik in the PET, and the Expressive One-Word Picture Vocabulary Test or the Aktiver Wortschatztest. Children were matched pairwise on the basis of their chronological age, nonverbal IQ, and scores in a sentence imitation and a sentence production task. As predicted, the German-speaking language-impaired children earned higher scores in grammatical morphology and vocabulary than did the English-speaking children. These findings add to a growing body of literature that documents language-specific sensitivity to particular sorts of syntactic devices. They also suggest that the morphological difficulties seen in English-speaking language-impaired children stem in part from the minor functional role played by these forms during the early language learning years.

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