Effects of age and experience on the production of English word-final stops by Korean speakers

2010 ◽  
Vol 13 (3) ◽  
pp. 263-278 ◽  
Author(s):  
WENDY BAKER
Keyword(s):  
Stop Consonant ◽  
Age Of Acquisition ◽  
Native English Speakers ◽  
English Word ◽  
Perceptual Judgment ◽  
English Speakers ◽  
Vowel Duration ◽  
Closure Duration ◽  
Monosyllabic Words ◽  
Consonant Voicing

This study examined the effect of second language (L2) age of acquisition and amount of experience on the production of word-final stop consonant voicing by adult native Korean learners of English. Thirty learners, who differed in amount of L2 experience and age of L2 exposure, and 10 native English speakers produced 8 English monosyllabic words ending in voiced and voiceless stops. These productions were presented to 10 English listeners for perceptual judgment and subjected to acoustic analyses to determine how well learners produced vowel duration and closure (stop gap) duration, two cues to stop consonant voicing. Results revealed that even learners with 10 years of L2 experience did not always produce stop consonant voicing accurately, that learners' age of acquisition influenced their production of both cues, that vowel duration was easier to learn than closure duration, and that English listeners used both these cues in their judgments of production accuracy.

scholarly journals Recognition times for 62 thousand English words: Data from the English Crowdsourcing Project

2019 ◽  
Author(s):  
Marc Brysbaert ◽  
Emmanuel Keuleers ◽  
Paweł Mandera
Keyword(s):  
Word Recognition ◽  
Response Times ◽  
Native English Speakers ◽  
English Word ◽  
English Speakers ◽  
Vocabulary Test ◽  
Response Latencies ◽  
Virtual Experiments

We present a new dataset of English word recognition times for a total of 62 thousand words, called the English Crowdsourcing Project. The data were collected via an internet vocabulary test, in which more than one million people participated. The present dataset is limited to native English speakers. Participants were asked to indicate which words they knew. Their response times were registered, although at no point were the participants asked to respond as fast as possible. Still, the response times correlate around .75 with the response times of the English Lexicon Project for the shared words. Also results of virtual experiments indicate that the new response times are a valid addition to the English Lexicon Project. This not only means that we have useful response times for some 35 thousand extra words, but we now also have data on differences in response latencies as a functionof education and age.

English and Japanese interlanguage comprehension strategies: An analysis based on the competition model

1991 ◽  
Vol 12 (1) ◽  
pp. 47-73 ◽  
Author(s):  
Yoshinori Sasaki
Keyword(s):  
First Language ◽  
Native English Speakers ◽  
English Word ◽  
Competition Model ◽  
Comprehension Strategies ◽  
English Speakers ◽  
Response Patterns ◽  
Native Japanese Speakers ◽  
Japanese Speakers ◽  
Japanese Word

ABSTRACTIn an experiment based on the competition model, 12 native Japanese speakers (J1 group) and 12 native English speakers studying Japanese (JFL group) were requested to report sentence subjects after listening to Japanese word strings which consisted of one verb and two nouns each. Similarly, 12 native English speakers (E1 group) and 12 native Japanese speakers studying English (EFL group) reported the sentence subjects of English word strings. In each word string, syntactic (word order) cues and lexical-semantic (animacy/inanimacy) cues converged or diverged as to the assignment of the sentence subjects. The results show that JFL-Ss (experimental subjects) closely approximated the response patterns of J1-Ss, while EFL-Ss showed evidence of transfer from their first language, Japanese. The results are consistent with the developmental precedence of a meaning-based comprehension strategy over a grammar-based one.

Comparative Acoustic Analyses of L2 English: The Search for Systematic Variation

Phonetica ◽  
2020 ◽  
Vol 77 (6) ◽  
pp. 441-479
Author(s):  
Rebecca Laturnus
Keyword(s):  
Voice Onset Time ◽  
Nonnative Speakers ◽  
Onset Time ◽  
Native English Speakers ◽  
English Speakers ◽  
Vowel Duration ◽  
Language Background ◽  
Accented Speech ◽  
Foreign Accents ◽  
Acoustic Analyses

<b><i>Background/Aims:</i></b> Previous research has shown that exposure to multiple foreign accents facilitates adaptation to an untrained novel accent. One explanation is that L2 speech varies systematically such that there are commonalities in the productions of nonnative speakers, regardless of their language background. <b><i>Methods:</i></b> A systematic acoustic comparison was conducted between 3 native English speakers and 6 nonnative accents. Voice onset time, unstressed vowel duration, and formant values of stressed and unstressed vowels were analyzed, comparing each nonnative accent to the native English talkers. A subsequent perception experiment tests what effect training on regionally accented voices has on the participant’s comprehension of nonnative accented speech to investigate the importance of within-speaker variation on attunement and generalization. <b><i>Results:</i></b> Data for each measure show substantial variability across speakers, reflecting phonetic transfer from individual L1s, as well as substantial inconsistency and variability in pronunciation, rather than commonalities in their productions. Training on native English varieties did not improve participants’ accuracy in understanding nonnative speech. <b><i>Conclusion:</i></b> These findings are more consistent with a hypothesis of accent attune­ment wherein listeners track general patterns of nonnative speech rather than relying on overlapping acoustic signals between speakers.

Development of sensitivity to phonological context in learning to spell in English

2010 ◽  
Vol 13 (1) ◽  
pp. 99-117 ◽  
Author(s):  
Nadya Dich
Keyword(s):  
Second Language ◽  
Native Speakers ◽  
Common Factor ◽  
Native English Speakers ◽  
English Word ◽  
Context Sensitivity ◽  
English Speakers ◽  
Russian Speakers ◽  
Word Spelling ◽  
L1 And L2

The study attempts to investigate factors underlying the development of spellers’ sensitivity to phonological context in English. Native English speakers and Russian speakers of English as a second language (ESL) were tested on their ability to use information about the coda to predict the spelling of vowels in English monosyllabic nonwords. In addition, the study assessed the participants’ spelling proficiency as their ability to correctly spell commonly misspelled words (Russian participants were assessed in both Russian and English). Both native and non-native English speakers were found to rely on the information about the coda when spelling vowels in nonwords. In both native and non-native speakers, context sensitivity was predicted by English word spelling; in Russian ESL speakers this relationship was mediated by English proficiency. L1 spelling proficiency did not facilitate L2 context sensitivity in Russian speakers. The results speak against a common factor underlying different aspects of spelling proficiency in L1 and L2 and in favor of the idea that spelling competence comprises different skills in different languages.

Developmental Use of Vowel Duration as a Cue to Postvocalic Stop Consonant Voicing

1982 ◽  
Vol 25 (3) ◽  
pp. 388-393 ◽  
Author(s):  
Sue Ellen Krause
Keyword(s):  
Significant Interaction ◽  
Stop Consonant ◽  
Developmental Study ◽  
Vowel Duration ◽  
Production Experiment ◽  
Normal Language ◽  
Vowel Lengthening ◽  
Consonant Voicing

This developmental study investigated vowel duration as a cue to postvocalic consonant voicing. Ten trials of six test words, spoken by 10 3-year-olds, 10 6-year-olds, and 10 adults, all with normal language and articulation and hearing, were analyzed. A significant interaction between the speaker's age and the voicing feature of the postvocalic consonant was found on measures of total vowel duration. The duration of vowels preceding voiceless stops was similar across ages, but vowel duration preceding voiced stops decreased sharply with age. In addition, decreased variability of vowel duration was observed with increasing age. Consideration is given to processes of exaggerated vowel lengthening and vowel shortening to describe children's acquisition of this voicing cue. The same subjects and stimulus words used in the production experiment were used in a previous perception experiment. Qualitative comparisons between the production and perception data revealed parallel refinement in the use of vowel duration as a function of age.

Conflicting and Cooperating Cues

1989 ◽  
Vol 32 (2) ◽  
pp. 307-316 ◽  
Author(s):  
Rebecca Eilers ◽  
D. K. Oller ◽  
Richard Urbano ◽  
Debra Moroff
Keyword(s):  
Stop Consonant ◽  
Vowel Duration ◽  
Extended Duration ◽  
Infant Perception ◽  
Relative Salience ◽  
Consonant Voicing

Three experiments were conducted to ascertain the relative salience of two cues for final consonant voicing in infants and adults. Experiment 1 was designed to investigate infant perception of periodicity of burst, vowel duration, and the two cues combined in a cooperating pattern. Experiment 2 was designed to examine infant perception of these same cues but in a conflicting pattern, that is, with extended duration associated with the voiceless final plosive. Experiment 3 examined perception of the stimuli from Experiments 1 and 2 with adult subjects. Results indicate that in both adults and infants combined cues facilitate discrimination of the phonemic contrast regardless of whether the cues cooperate or conflict. The three experiments taken together do not support a phonetic interpretation of conflicting/cooperating cues for the perception of final stop consonant voicing. Potential psychoacoustic explanations are discussed.

Ambiguous words are harder to learn

2010 ◽  
Vol 13 (3) ◽  
pp. 299-314 ◽  
Author(s):  
TAMAR DEGANI ◽  
NATASHA TOKOWICZ
Keyword(s):  
Language Learning ◽  
Second Language Learning ◽  
Native English Speakers ◽  
English Word ◽  
English Speakers ◽  
Ambiguous Words ◽  
Multiple Meanings ◽  
Word Change ◽  
Multiple Translations

Relatively little is known about the role of ambiguity in adult second-language learning. In this study, native English speakers learned Dutch–English translation pairs that either mapped in a one-to-one fashion (unambiguous items) in that a Dutch word uniquely corresponded to one English word, or mapped in a one-to-many fashion (ambiguous items), with two Dutch translations corresponding to a single English word. These two Dutch translations could function as exact synonyms, corresponding to a single meaning, or could correspond to different meanings of an ambiguous English word (e.g., wisselgeld denotes the monetary meaning of the word change, and verandering denotes alteration). Several immediate and delayed tests revealed that such translation ambiguity creates a challenge for learners. Furthermore, words with multiple translations corresponding to the same meaning are more difficult to learn than words with multiple translations corresponding to multiple meanings, suggesting that a one-to-many mapping underlies this ambiguity disadvantage.

Grammaticality judgments in a second language: Influences of age of acquisition and native language

2000 ◽  
Vol 21 (3) ◽  
pp. 395-423 ◽  
Author(s):  
JANET L. MCDONALD
Keyword(s):  
Second Language ◽  
Language Learners ◽  
General Problem ◽  
Word Order ◽  
Native Language ◽  
Age Of Acquisition ◽  
Native English Speakers ◽  
English Speakers ◽  
Surface Form ◽  
Grammaticality Judgments

Native Spanish early and late acquirers of English as well as native Vietnamese early and child acquirers of English made grammaticality judgments of sentences in their second language. Native Spanish early acquirers were not distinguishable from native English speakers, whereas native Spanish late acquirers had difficulty with all aspects of the grammar tested except word order. Native Vietnamese early acquirers had difficulty with those aspects of English that differ markedly from Vietnamese. Native Vietnamese child acquirers had more generalized problems, similar to those of native Spanish late acquirers. Thus, native language appeared to make a difference for early acquirers, whereas a later age of acquisition caused a more general problem. A processing-based model focusing on the difficulty non-native language learners have in rapidly decoding surface form is offered as a possible explanation for both effects.

scholarly journals Token Frequency Effects in Homophone Production: An Elicitation Study

2017 ◽  
Vol 61 (3) ◽  
pp. 466-479 ◽  
Author(s):  
Erin Conwell
Keyword(s):  
Native English Speakers ◽  
English Speakers ◽  
Vowel Duration ◽  
Intended Meaning ◽  
Natural Production ◽  
Elicitation Study ◽  
Adults And Children ◽  
Planning Processes ◽  
Story Completion ◽  
Meaning Frequency

In natural production, adults differentiate homophones prosodically as a function of the frequency of their intended meaning. This study compares adult and child productions of homophones to determine whether prosodic differentiation of homophones changes over development. Using a picture-based story-completion paradigm, isolated tokens of homophones were elicited from English-learning children and adult native English speakers. These tokens were measured for duration, vowel duration, pitch, pitch range, and vowel quality. Results indicate that less frequent meanings of homophones are longer in duration than their more frequent counterparts in both adults and children. No other measurement differed as a function of meaning frequency. As speakers of all ages produce longer tokens of lower frequency homophones, homophone differentiation does not change over development, but is included in children’s early lexicons. These findings indicate that production planning processes alone may not fully account for differences in homophone duration, but rather that the differences could be learned and represented from experience even in the early stages of lexical acquisition.

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