Longitudinal Study of Language and Speech of Twins at 4 and 6 Years: Twinning Effects Decrease, Zygosity Effects Disappear, and Heritability Increases
Conclusions Across multiple dimensions of speech, language, and nonverbal cognition, heritability estimates are robust. A finiteness marker of grammar shows the highest inherited influences in this early period of children's language acquisition. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Grammar Clinical Marker Yields Substantial Heritability for Language Impairments in 16-Year-Old Twins
Conclusions The heritability of GJ-20 scores, especially at more extreme cutoffs, along with the score distribution and association with other indicators of language impairments, provides additional evidence for the potential value of this measure as a clinical marker of specific language impairment. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Do Infants Born Very Premature and Who Have Very Low Birth Weight Catch Up With Their Full Term Peers in Their Language Abilities by Early School Age?
Conclusions Children born VPT and who have VLBW perform worse than their peers on their total language, receptive language, expressive language, phonological awareness, and grammar abilities by early school age. This information is important for speech-language pathologists to consider as children born prematurely reach school age. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Erratum
(Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Acoustic Analysis of Voice in Singers: A Systematic Review
Conclusion Overall, a great heterogeneity was noted regarding population, tasks, instruments, and parameters. There is a lack of standardized criteria for the evaluation of singing voice. In order to implement acoustic analysis as a part of comprehensive voice evaluation exclusively for singers, there is a certain need for methodical sound studies. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Do Transmasculine Speakers Present With Gender-Related Voice Problems? Insights From a Participant-Centered Mixed-Methods Study
Conclusion Transmasculine speakers may experience a range of gender-related voice problems. Research and clinical practice with transmasculine people need to be adapted to better match the diversity of the population and the complexity of the processes that shape the production of speaker vocal gender in interaction. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Erratum
(Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Author's Rebuttal to Smits et al. (2018), “Comment on ‘Sensitivity of the Speech Intelligibility Index to the Assumed Dynamic Range’ by Jin et al. (2017)”
ConclusionsJin et al. (2017) clearly provided the impact of languages and DR on the SII, which was the main result of the study. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Comment on “Sensitivity of the Speech Intelligibility Index to the Assumed Dynamic Range,” by Jin et al. (2017)
Conclusion The authors argue that the approach and line of reasoning in theJin et al. (2017) research note suggest new findings but do not lead to essentially new insights. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Perception of Cantonese Lexical Tones by Pediatric Cochlear Implant Users
Conclusions The results of this study add further evidence that children using CIs do not perform as well as peers in perceiving Cantonese tones. Modification of tones to increase pitch range did not consistently improve the ability of children with implants to perceive the difference between tones. Further research is required to fully assess potential benefits of early implantation for speakers of tonal languages.Supplemental Materialshttps://doi.org/10.23641/asha.5782209 (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Talker Differences in Clear and Conversational Speech: Perceived Sentence Clarity for Young Adults With Normal Hearing and Older Adults With Hearing Loss
Conclusions Perceived clarity varies widely among talkers, but nearly all produce clear speech that sounds significantly clearer than their conversational speech. Few differences were seen between OHI and YNH listeners except the effect of talker gender. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Gated Word Recognition by Postlingually Deafened Adults With Cochlear Implants: Influence of Semantic Context
Conclusion Word recognition occurs even before the entire word is heard because listeners with NH associate an acoustic input with its mental representation to understand speech. The results of this study provide insight into the role of spectral degradation on the processing of spoken words in isolation and the potential benefits of semantic context. These results may also explain why CI users rely substantially on semantic context. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

The Roles of Vowel Fronting, Lengthening, and Listener Variables in the Perception of Vocal Femininity
Conclusions Fronting (except for / ʊ/) and lengthening of lax vowels make words sound more feminine for Southern listeners, which has implications for clients who wish to modify the perception of femininity invoked by their speech. The relative strength of the gender and regional associations of these vowel characteristics should be further examined across dialects. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

Convergent and Divergent Validity of the Grammaticality and Utterance Length Instrument
Discussion The GLi has good convergent and divergent validity and is a reliable instrument to assess utterance length and grammaticality of prerecorded language samples. However, SALT transcription and analysis provide a more detailed and comprehensive analysis of the language skills of a child. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research

The Relationship Between Motor Delays and Language Development in Very Low Birthweight Premature Children at 18 Months Corrected Age
Conclusion Findings suggest that motor control areas of the brain may be implicated in expressive language development of premature children. Further research is needed to determine the underlying factors for the association between motor and expressive language function. (Source: Journal of Speech, Language, and Hearing Research)
Source: Journal of Speech, Language, and Hearing Research - January 22, 2018 Category: Speech-Language Pathology Source Type: research