Abstract:
:When addressing their young infants, parents systematically modify their speech. Such infant-directed speech (IDS) contains exaggerated vowel formants, which have been proposed to foster language development via articulation of more distinct speech sounds. Here, this assumption is rigorously tested using both acoustic and, for the first time, fine-grained articulatory measures. Mothers were recorded speaking to their infant and to another adult, and measures were taken of their acoustic vowel space, their tongue and lip movements and the length of their vocal tract. Results showed that infant- but not adult-directed speech contains acoustically exaggerated vowels, and these are not the product of adjustments to tongue or to lip movements. Rather, they are the product of a shortened vocal tract due to a raised larynx, which can be ascribed to speakers' unconscious effort to appear smaller and more non-threatening to the young infant. This adjustment in IDS may be a vestige of early mother-infant interactions, which had as its primary purpose the transmission of non-aggressiveness and/or a primitive manifestation of pre-linguistic vocal social convergence of the mother to her infant. With the advent of human language, this vestige then acquired a secondary purpose-facilitating language acquisition via the serendipitously exaggerated vowels.
journal_name
R Soc Open Scijournal_title
Royal Society open scienceauthors
Kalashnikova M,Carignan C,Burnham Ddoi
10.1098/rsos.170306subject
Has Abstractpub_date
2017-08-02 00:00:00pages
170306issue
8issn
2054-5703pii
rsos170306journal_volume
4pub_type
杂志文章abstract::Estimating effects of nitrogen (N) deposition is essential for understanding human impacts on biodiversity. However, studies relating atmospheric N deposition to plant diversity are usually restricted to small plots of high conservation value. Here, we used data on 381 randomly selected 1 km(2) plots covering most hab...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.150017
更新日期:2015-04-08 00:00:00
abstract::The evolution of wing pattern in Lepidoptera is a popular area of inquiry but few studies have examined microlepidoptera, with fewer still focusing on intraspecific variation. The tineid genus Moerarchis Durrant, 1914 includes two species with high intraspecific variation of wing pattern. A subset of the specimens exa...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.161002
更新日期:2017-03-01 00:00:00
abstract::Heteroepitaxial growth of aluminum nitride (AIN) has been explored by experiments, but the corresponding growth mechanism is still unrevealed. Here, we use molecular dynamics simulations to study effects of temperature and N : Al flux ratio on deposited AlN. When the temperature increases from 1000 K to 2000 K with an...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.180629
更新日期:2018-08-15 00:00:00
abstract::With the current proliferation of data, the proficient use of statistical and mining techniques offer substantial benefits to capture useful information from any dataset. As numerous approaches make use of information theory concepts, here, we discuss how Fisher information (FI) can be applied to sustainability scienc...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.160582
更新日期:2016-11-09 00:00:00
abstract::Metacommunity theory highlights the potential of β-diversity as a useful link to empirical research, especially in diverse systems where species exhibit a range of stage-dependent dispersal characteristics. To investigate the importance of different components and scales of β-diversity in community assembly, we conduc...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.171700
更新日期:2018-08-08 00:00:00
abstract::The study of the evolution of abiotic niches can be informative regarding the speciation drivers in a given group. Yet, two factors that could potentially affect niche evolution have seldom been addressed concomitantly, which are biotic interactions and geographical isolation. In this study, we used as a model group t...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.170293
更新日期:2017-11-01 00:00:00
abstract::In this contribution, olefin block copolymers were produced via chain shuttling polymerization (CSP), using a new combination of catalysts and a chain shuttling agent (CSA) diethylzinc (ZnEt2). The binary catalyst system included nonbridged half-titanocene catalyst, Cp*TiCl2(O-2,6-iPr2C6H3) (Cat A) and bis(phenoxy-imi...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.182007
更新日期:2019-04-10 00:00:00
abstract::Plague remains a threat to public health and is considered as a re-emerging infectious disease today. Rodents play an important role as major hosts in plague persistence and driving plague outbreaks in natural foci; however, few studies have tested the association between host diversity in ecosystems and human plague ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190216
更新日期:2019-06-19 00:00:00
abstract::Zeolitic-imidazole frameworks (ZIFs), as novel porous materials, are attracting much attention in several fields due to their special advantages such as large specific surface area, versatile porosity and well-connected networks. Here, we develop a porous ZIF-derived catalytic thin film, which was coated on the conduc...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.180335
更新日期:2018-05-30 00:00:00
abstract::Biomedical device-associated infection (BAI) and lack of osseointegration are the main causes of implant failure. Therefore, it is imperative for implants not only to depress microbial activity and biofilm colonization but also to prompt osteoblast functions and osseointegration. As part of the coating development for...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.172310
更新日期:2018-04-11 00:00:00
abstract::Pre-pubertal boys and girls speak with acoustically different voices despite the absence of a clear anatomical dimorphism in the vocal apparatus, suggesting that a strong component of the expression of gender through the voice is behavioural. Initial evidence for this hypothesis was found in a previous study showing t...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190656
更新日期:2019-07-17 00:00:00
abstract::Understanding the evolutionary history of contemporary animal groups is essential for conservation and management of endangered species like caribou (Rangifer tarandus). In central Canada, the ranges of two caribou subspecies (barren-ground/woodland caribou) and two woodland caribou ecotypes (boreal/eastern migratory)...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.150469
更新日期:2016-02-03 00:00:00
abstract::A novel alkyl lithium-based initiator with relatively large steric hindrance, tert-butyldimethylsiloxydimethylpropyl lithium (TBDMSODPrLi), was designed and synthesized. By using TBDMSODPrLi, hydroxyl-terminated polybutadiene (HTPB) was prepared via anionic polymerization. The macromolecular structure of HTPB was char...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.180156
更新日期:2018-05-30 00:00:00
abstract::To investigate the pathways of introduction of the African baobab, Adansonia digitata, to the Indian subcontinent, we examined 10 microsatellite loci in individuals from Africa, India, the Mascarenes and Malaysia, and matched this with historical evidence of human interactions between source and destination regions. G...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.150370
更新日期:2015-09-09 00:00:00
abstract::The Coral Triangle is widely considered the most important centre of marine biodiversity in Asia while areas on its periphery such as the South China Sea, have received much less interest. Here, we demonstrate that a small population of the knobbly sea star Protoreaster nodosus in Singapore has similarly high levels o...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.160253
更新日期:2016-08-17 00:00:00
abstract::This study describes the 35-year progression of activities in the Pontal do Paranapanema region of São Paulo State, Brazil. These activities began as a research project on the conservation ecology of the highly endangered Black Lion Tamarin and broadened into a landscape-scale restoration and conservation project invo...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.200939
更新日期:2020-12-09 00:00:00
abstract::Artificial microswimmers powered by magnetic fields have numerous applications, such as drug delivery, biosensing for minimally invasive medicine and environmental remediation. Recently, a Janus microdimer surface walker that can be propelled by an oscillating magnetic field near a surface was reported by Li et al. (A...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.200378
更新日期:2020-12-09 00:00:00
abstract::In its natural habitat, the one-leaf plant Monophyllaea horsfieldii (Gesneriaceae) shows striking postural changes and dramatic loss of stability in response to intermittently occurring droughts. As the morphological, anatomical and biomechanical bases of these alterations are as yet unclear, we examined the influence...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.171076
更新日期:2018-01-03 00:00:00
abstract::Objects that are briefly flashed around the time of saccades are mislocalized. Previously, robust interactions between saccadic perceptual distortions and stimulus contrast have been reported. It is also known that crowding depends on the contrast of the target and flankers. Here, we investigated how stimulus contrast...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.160559
更新日期:2017-02-01 00:00:00
abstract::The differences in life-history traits and processes between organisms living in the same or different populations contribute to their ecological and evolutionary dynamics. We developed mixed-effect model formulations of the popular size-at-age von Bertalanffy and Gompertz growth functions to estimate individual and g...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.192146
更新日期:2020-04-08 00:00:00
abstract::This article studies correlated two-person games constructed from games with independent players as proposed in Iqbal et al. (2016 R. Soc. open sci.3, 150477. (doi:10.1098/rsos.150477)). The games are played in a collective manner, both in a two-dimensional lattice where the players interact with their neighbours, and...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.171361
更新日期:2017-11-15 00:00:00
abstract::This study aims to produce ethylene using the calcium carbide route, acetylene from calcium carbide and then selective hydrogenation of the high-concentration acetylene to ethylene. A series of catalysts with different supports, such as Al2O3, SiO2 and MCM-41, were prepared using the ethylene glycol reduction method a...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.191155
更新日期:2019-11-13 00:00:00
abstract::In evolutionary biomechanics it is often considered that gaits should evolve to minimize the energetic cost of travelling a given distance. In gait simulation this goal often leads to convincing gait generation. However, as the musculoskeletal models used get increasingly sophisticated, it becomes apparent that such a...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.171836
更新日期:2018-03-07 00:00:00
abstract::The exceptional reactivity of animal collectives to predatory attacks is thought to be owing to rapid, but local, transfer of information between group members. These groups turn together in unison and produce escape waves. However, it is not clear how escape waves are created from local interactions, nor is it unders...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.140355
更新日期:2015-04-01 00:00:00
abstract::Polymer-based composites with the advantages of ceramics and polymers exhibit high dielectric constant, good processing properties and low dielectric loss. The composites with a varied content of irregular alumina (i-Al2O3) filler were prepared by UV-cured epoxy acrylic (EA). Spherical alumina (s-Al2O3) was used as a ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.181509
更新日期:2019-01-16 00:00:00
abstract::It is recently demonstrated that amorphous Ge anode shows higher reversible Na-ion storage capacity (590 mA h g-1) than crystallized Ge anode (369 mA h g-1). Here, amorphous GeO x anode is prepared by a simple wet-chemistry reduction route at room temperature. The obtained...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.171477
更新日期:2018-01-17 00:00:00
abstract::Within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), this work explores the surface processes and chemistry relating to core/mantle interstellar and cometary grain structures and their influence on the nature of these fascinating particles. It appears that a realistic consid...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.160224
更新日期:2016-12-14 00:00:00
abstract::A series of ordered mesoporous silica such as MCM-41, SBA-3 and SBA-15, in addition to silica micro- (SM) and nano- (SN) mesoporous particles, were prepared. The preparation conditions were found to greatly influence the physical-surface properties including morphological structure, porosity, particle size, aggregate ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.172021
更新日期:2018-03-14 00:00:00
abstract::Declines in pollinator abundance and diversity are not only a conservation issue, but also a threat to crop pollination. Maintained infrastructure corridors, such as those containing electricity transmission lines, are potentially important wild pollinator habitat. However, there is a lack of evidence comparing the ab...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.160525
更新日期:2016-11-23 00:00:00
abstract::Quantifying regulatory gene effects on dental morphology and function has implications for the underlying mechanisms that generated dental diversity in mammals. We tested the hypothesis that regulatory gene expression changes lead to differences in molars using a neural crest knockout of bone morphogenetic protein 7 (...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.170761
更新日期:2018-01-03 00:00:00