The role of speech rhythm in language discrimination: further tests with a non-human primate

2005 ◽  
Vol 8 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Ruth Tincoff ◽  
Marc Hauser ◽  
Fritz Tsao ◽  
Geertrui Spaepen ◽  
Franck Ramus ◽  
...  
Keyword(s):  
Speech Rhythm ◽  
Language Discrimination ◽  
Human Primate

scholarly journals Neonatal Immune System Ontogeny: The Role of Maternal Microbiota and Associated Factors. How Might the Non-Human Primate Model Enlighten the Path?

Vaccines ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 584
Author(s):  
Natalia Nunez ◽  
Louis Réot ◽  
Elisabeth Menu
Keyword(s):  
Immune System ◽  
Mode Of Delivery ◽  
Microbial Colonization ◽  
Therapeutic Interventions ◽  
Primate Model ◽  
Neonatal Immune System ◽  
Gastrointestinal Colonization ◽  
The Impact ◽  
Human Primate

Interactions between the immune system and the microbiome play a crucial role on the human health. These interactions start in the prenatal period and are critical for the maturation of the immune system in newborns and infants. Several factors influence the composition of the infant’s microbiota and subsequently the development of the immune system. They include maternal infection, antibiotic treatment, environmental exposure, mode of delivery, breastfeeding, and food introduction. In this review, we focus on the ontogeny of the immune system and its association to microbial colonization from conception to food diversification. In this context, we give an overview of the mother–fetus interactions during pregnancy, the impact of the time of birth and the mode of delivery, the neonate gastrointestinal colonization and the role of breastfeeding, weaning, and food diversification. We further review the impact of the vaccination on the infant’s microbiota and the reciprocal case. Finally, we discuss several potential therapeutic interventions that might help to improve the newborn and infant’s health and their responses to vaccination. Throughout the review, we underline the main scientific questions that are left to be answered and how the non-human primate model could help enlighten the path.

scholarly journals Quantifying the role of rhythm in infants' language discrimination abilities: A meta-analysis

Cognition ◽  
2021 ◽  
pp. 104757
Author(s):  
Loretta Gasparini ◽  
Alan Langus ◽  
Sho Tsuji ◽  
Natalie Boll-Avetisyan
Keyword(s):  
Meta Analysis ◽  
Language Discrimination

scholarly journals The role of MRI in applying the 3Rs to non-human primate neuroscience

NeuroImage ◽  
2021 ◽  
Vol 225 ◽  
pp. 117521 ◽  
Author(s):  
Mark J. Prescott ◽  
Colline Poirier
Keyword(s):  
Human Primate

Role of rhythmic and intonational cues in language discrimination.

2009 ◽  
Vol 125 (4) ◽  
pp. 2764-2764 ◽  
Author(s):  
Chad Vicenik ◽  
Megha Sundara
Keyword(s):  
Language Discrimination

scholarly journals Aedes vector–host olfactory interactions in sylvatic and domestic dengue transmission environments

2019 ◽  
Vol 286 (1914) ◽  
pp. 20192136 ◽  
Author(s):  
David P. Tchouassi ◽  
Juliah W. Jacob ◽  
Edwin O. Ogola ◽  
Rosemary Sang ◽  
Baldwyn Torto
Keyword(s):  
Aedes Aegypti ◽  
Yellow Fever ◽  
Disease Vectors ◽  
Domestic Environment ◽  
Practical Applications ◽  
Baited Traps ◽  
Dengue Transmission ◽  
Trap Catches ◽  
Human Primate

Interactions between Aedes ( Stegomyia ) species and non-human primate (NHP) and human hosts govern the transmission of the pathogens, dengue, zika, yellow fever and chikungunya viruses. Little is known about Aedes mosquito olfactory interactions with these hosts in the domestic and sylvatic cycles where these viruses circulate. Here, we explore how the different host-derived skin odours influence Aedes mosquito responses in these two environments. In field assays, we show that the cyclic ketone cyclohexanone is a signature cue for Aedes mosquitoes to detect the NHP baboon, sykes and vervet, whereas for humans, it is the unsaturated aliphatic keto-analogue 6-methyl-5-hepten-2-one (sulcatone). We find that in the sylvatic environment, CO 2 -baited traps combined with either cyclohexanone or sulcatone increased trap catches of Aedes mosquitoes compared to traps either baited with CO 2 alone or CO 2 combined with NHP- or human-derived crude skin odours. In the domestic environment, each of these odourants and crude human skin odours increased Aedes aegypti catches in CO 2 -baited traps. These results expand our knowledge on the role of host odours in the ecologies of Aedes mosquitoes, and the likelihood of associated spread of pathogens between primates and humans. Both cyclohexanone and sulcatone have potential practical applications as lures for monitoring Aedes disease vectors.

scholarly journals Bilingual beginnings to learning words

2009 ◽  
Vol 364 (1536) ◽  
pp. 3649-3663 ◽  
Author(s):  
Janet F. Werker ◽  
Krista Byers-Heinlein ◽  
Christopher T. Fennell
Keyword(s):  
Early Childhood ◽  
Speech Perception ◽  
Language Acquisition ◽  
Experimental Research ◽  
Word Learning ◽  
Conceptual Development ◽  
Learning Mechanisms ◽  
Language Discrimination ◽  
Infancy And Early Childhood

At the macrostructure level of language milestones, language acquisition follows a nearly identical course whether children grow up with one or with two languages. However, at the microstructure level, experimental research is revealing that the same proclivities and learning mechanisms that support language acquisition unfold somewhat differently in bilingual versus monolingual environments. This paper synthesizes recent findings in the area of early bilingualism by focusing on the question of how bilingual infants come to apply their phonetic sensitivities to word learning, as they must to learn minimal pair words (e.g. ‘cat’ and ‘mat’). To this end, the paper reviews antecedent achievements by bilinguals throughout infancy and early childhood in the following areas: language discrimination and separation, speech perception, phonetic and phonotactic development, word recognition, word learning and aspects of conceptual development that underlie word learning. Special consideration is given to the role of language dominance, and to the unique challenges to language acquisition posed by a bilingual environment.

scholarly journals Characterizing speech rhythm using spectral coherence analysis of jaw kinematics and speech temporal envelope: A proof of concept

2019 ◽  
Author(s):  
Lei He
Keyword(s):  
Low Frequency ◽  
Speech Comprehension ◽  
Coherence Analysis ◽  
Proof Of Concept ◽  
Spectral Coherence ◽  
Speech Rhythm ◽  
Temporal Envelope ◽  
Frequency Bands ◽  
Frequency Modulations

Lower modulation rates in the temporal envelope (ENV) constitute the rhythmic frames in speech and are crucial for speech comprehension in terms of neuronal entrainments at δ- and θ-rates. The jaw plays the role of a carrier articulator producing the low-frequency modulations in this process. This paper introduces a method to examine the joint roles of jaw oscillation and ENV in formulating rhythmic frames using spectral coherence. Relative powers in the frequency bands corresponding to the δ- and θ-oscillations were quantified and regressed on utterance duration. Two English corpora were analyzed for the proof of concept.

scholarly journals Capturing Cross-linguistic Differences in Macro-rhythm: The Case of Italian and English

2019 ◽  
Vol 63 (2) ◽  
pp. 242-263
Author(s):  
Leona Polyanskaya ◽  
Maria Grazia Busà ◽  
Mikhail Ordin
Keyword(s):  
Language Acquisition ◽  
Speech Processing ◽  
Speech Rhythm ◽  
Language Differences ◽  
Linguistic Differences ◽  
Language Difference ◽  
Relative Load ◽  
Higher Regularity ◽  
Cross Language

We tested the hypothesis that languages can be classified by their degree of tonal rhythm (Jun, 2014). The tonal rhythms of English and Italian were quantified using the following parameters: (a) regularity of tonal alternations in time, measured as durational variability in peak-to-peak and valley-to-valley intervals; (b) magnitude of F0 excursions, measured as the range of frequencies covered by the speaker between consecutive F0 maxima and minima; (c) number of tonal target points per intonational unit; and (d) similarity of F0 rising and falling contours within intonational units. The results show that, as predicted by Jun’s prosodic typology (2014), Italian has a stronger tonal rhythm than English, expressed by higher regularity in the distribution of F0 minima turning points, larger F0 excursions, and more frequent tonal targets, indicating alternating phonological H and L tones. This cross-language difference can be explained by the relative load of F0 and durational ratios on the perception and production of speech rhythm and prominence. We suggest that research on the role of speech rhythm in speech processing and language acquisition should not be restricted to syllabic rhythm, but should also examine the role of cross-language differences in tonal rhythm.

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