Results 51 to 60 of about 360,942 (290)

FoxP2 in Song-Learning Birds and Vocal-Learning Mammals [PDF]

Journal of Heredity, 2004
FoxP2 is the first identified gene that is specifically involved in speech and language development in humans. Population genetic studies of FoxP2 revealed a selective sweep in recent human history associated with two amino acid substitutions in exon 7.
D M, Webb, J, Zhang
openaire   +2 more sources

Symbols are not uniquely human [PDF]

, 2006
Modern semiotics is a branch of logics that formally defines symbol-based communication. In recent years, the semiotic classification of signs has been invoked to support the notion that symbols are uniquely human.
Araújo, Ivan, Gudwin, Ricardo, Loula, Angelo, Queiroz, Joao, Ribeiro, Sidarta   +4 more
core  

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

Advanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

Anecdotal Observations of Socially Learned Vocalizations in Harbor Seals [PDF]

Animal Behavior and Cognition
Harbor seals (Phoca vitulina) are more solitary than many other pinnipeds. Yet, they are capable of vocal learning, a form of social learning. Most extant literature examines social animals when investigating social learning, despite sociality not being ...
Diandra Duengen, Martin Polotzek, Eoin P. O’Sullivan, Andrea Ravignani   +3 more
doaj   +1 more source

Song Morphing by Humpback Whales: Cultural or Epiphenomenal?

Frontiers in Psychology, 2021
Singing humpback whales (Megaptera noavaengliae) collectively and progressively change the sounds and patterns they produce within their songs throughout their lives.
Eduardo Mercado
doaj   +1 more source

Magnetic resonance imaging of the brain and vocal tract:Applications to the study of speech production and language learning [PDF]

, 2017
The human vocal system is highly plastic, allowing for the flexible expression of language, mood and intentions. However, this plasticity is not stable throughout the life span, and it is well documented that adult learners encounter greater difficulty ...
Badin, Baer, Berken, Bresch, Bresch, Bresch, Bressman, Bressmann, Buchsbaum, Carolyn McGettigan, Cartei, Cheng, Dagenais, Daniel Carey, Delvaux, Devereux, Drissi, Dronkers, Evans, Fitch, Flege, Flege, Garnier, Gibbon, Golestani, Goozée, Goozée, Guenther, Guenther, Hagedorn, Hashizume, Hickok, Hickok, Hickok, Hu, Hughes, Jacquemot, Jacquemot, Kappes, Katz, Kriegeskorte, Kriegeskorte, Krishnan, McGettigan, McGettigan, McLeod, Moser, Narayanan, Niebergall, Oh, Pardo, Pardo, Pardo, Pardo, Peschke, Peschke, Pisanski, Piske, Proctor, Rauschecker, Reiterer, Reiterer, Sagar, Schoenle, Scott, Scott, Segawa, Silva, Silva, Simmonds, Simmonds, Simmonds, Simmonds, Tourville, Vasquez Miloro, Vorperian, Weirich, Weiss-Croft   +77 more
core   +2 more sources

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

A simple computational principle predicts vocal adaptation dynamics across age and error size

Frontiers in Integrative Neuroscience, 2014
The brain uses sensory feedback to correct errors in behavior. Songbirds and humans acquire vocal behaviors by imitating the sounds produced by adults and rely on auditory feedback to correct vocal errors throughout their lifetimes.
Conor William Kelly, Samuel eSober
doaj   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source

What Is the Role of Thalamostriatal Circuits in Learning Vocal Sequences?

Frontiers in Neural Circuits, 2021
Basal ganglia (BG) circuits integrate sensory and motor-related information from the cortex, thalamus, and midbrain to guide learning and production of motor sequences. Birdsong, like speech, is comprised of precisely sequenced vocal elements.
Lei Xiao, Todd F. Roberts
doaj   +1 more source