Articles tagged with Vocalization
A study found that singing mice didn't evolve a bigger brain or new neural connections to produce complex songs. Instead, their brains roughly tripled the number of neurons connecting the mouth-movement control center with target regions for hearing and vocalizations.
Researchers recorded single-unit activity in bats' inferior colliculus while they were freely vocalizing. The study found that 95% of neurons responded differently to self-generated vocalizations than to playback of the same calls.
A team of researchers from Kyoto University has identified multiple types of stromal and secretory cells in the larynx, revealing new insights into vocal fold regeneration. The study's findings provide potential stem cells for treating vocal cord dysfunction and other voice disorders.
A new study suggests that many animal communication signals, including those from insects, birds, mammals, and fish, repeat at nearly the same tempo of 2 hertz. This common tempo may reflect a shared biological constraint, enabling brains to detect signals more easily and process communication more efficiently.
Researchers found that Gracixalus weii treefrog's call is similar to a bird-like chirp of the Black-Breasted Thrush, highlighting the evolution of acoustic symbols in amphibians influenced by ecological interactions with birds. This phenomenon provides a reliable alternative to morphological or molecular diagnosis for cryptic species
Researchers developed a digital safeguard, My Music My Choice, to protect songs from generative AI cloning. The tool adds imperceptible changes to a song's waveform, making it difficult for AI models to replicate.
Horses produce high-frequency sounds by whistling through their larynx while vibrating vocal folds. Researchers found that the high-frequency component of the whinny is generated by a laryngeal whistle, shifting to higher frequencies when helium is used.
Researchers found that male nightingales precisely match pitch, but also adjust note length to achieve a trade-off strategy. They exhibit flexibility in how closely they match pitch versus duration depending on the combination heard. This ability requires rapid processing and neural flexibility.
In a study published in the Journal of Experimental Biology, researchers from Kobe University found that hawkmoth larvae and pupae produce defensive sounds when stimulated. These sounds are released through respiratory openings and resemble snake warning signals, potentially helping the insects evade predators.
A new study by Waseda University researchers explores the role of morphological processing in L2 French ambiguity, finding that it plays a significant role in causing speech errors. The study suggests that educators should integrate pronunciation and vocabulary exercises more holistically to help learners overcome hidden ambiguities.
Researchers from UNIGE found that specific areas of the auditory cortex respond to chimpanzee vocalisations, suggesting a shared neural basis for voice recognition. This discovery could have implications for understanding the origin of language development.
Researchers found that male elephant seals respond faster and change posture when hearing recorded calls of their old rivals. The seals also showed less aggressive behavior towards subordinate rivals. This suggests that the seals can remember individual voices even after a year.
Scientists at Cold Spring Harbor Laboratory are studying Alston's singing mice to better comprehend the evolutionary origins of vocal communication. The research may also hold clues for understanding strokes, autism, and other speech-related disorders. The study found that singing mice use a common brain region for both singing and ult...
A new study found that babies as young as 7 months old can quickly recognize their mothers' voices, but struggle with unfamiliar ones. Maternal speech may also play a role in shaping social processing, influencing how babies respond to new faces.
A team of biomechanical engineers and surgeons has developed a 3D-printing soft robot that can accurately deliver hydrogels to the vocal cord surgical site. The device, which is only 2.7 mm in size, can reconstruct tissues removed during surgery and potentially prevent fibrosis and stiffening of the vocal cords.
A recent study has found that auditory verbal hallucinations in schizophrenia may stem from a disruption in the brain's ability to recognize its own inner voice. Researchers used EEG to measure brainwaves as participants listened to audio and imagined speaking, revealing a stronger reaction in people with schizophrenia who heard voices.
Researchers analyzed over 2,000 hours of underwater recordings to detect subtle shifts in red hind spawning behavior and population dynamics. The study found a notable shift in the balance of mating calls over the 12-year period, with calls linked to competition becoming dominant.
A new study found that vibrato is the most significant vocal attribute in determining an opera singer's score, while acoustic features like SPR and HNR have a greater impact than previously thought. The research provides objective insights into how judges evaluate performances and offers tools for vocal training.
Researchers at UNSW Sydney discovered that leopard seal songs share structural similarities with human nursery rhymes, featuring predictable patterns and low entropy. The study found that male seals spend up to 13 hours a day singing in two-minute cycles, with each individual creating a unique sonic signature.
Researchers used AI to analyze bird songs and calls of 53 European forest bird species, revealing far more activity types than previously thought. The study showed that some species are active around dawn and twilight, and their song patterns need adjustment for breeding bird surveys.
Researchers discovered that as birds age, their song gene networks change dramatically, with hub genes driving activity of other genes. This finding could lead to earlier diagnoses and better treatments for Parkinson's disease and Alzheimer's disease.
A new study by Cornell researchers discovered that caregivers simplify their speech in response to babies' babbling, creating a feedback loop that drives learning. This effect is observed across multiple languages and cultures, suggesting that babies actively shape the conditions for language development.
Researchers found that babies' first vocalizations and attempts at forming words coincide with fluctuations in their heart rate. This discovery may indicate that successful speech development depends on predictable ranges of autonomic activity during infancy.
Researchers are developing a system to instantly conceal and anonymize voices through computer-generated speech. The technology will allow users to control factors like age, gender, and dialect in real-time conversations.
The study reveals that blue whales primarily occur in summer and autumn, while fin whales can be heard throughout the year. The data also confirms the sporadic occurrence of blue whales during winter months, which may be related to climate change.
A study of 57 adult chimpanzees found that social play before group activities like hunting or territorial defense increased collaboration and cooperation. Play also helped to relieve tension and resolve conflicts, suggesting its role in maintaining cohesive societies.
The NJIT team's Limelight Rainforest developed a drone-delivered technology capable of identifying thousands of rainforest species in mere hours. The device uses telemetry, satellite communications, and AI to interpret data from advanced microphones, cameras, and capture systems.
Researchers compared vowels in pain, disgust, and joy interjections to nonlinguistic vocalizations across 131 languages. They found consistent vowel signatures for pain and disgust, but not for joyful emotions.
A new reinforcement learning framework, AVATARS, uses diverse sensor streams to track whales and predict their surface locations. The framework aims to minimize missed encounters and improve data collection for Project CETI.
Brachycephalus dacnis is the seventh species of flea toad identified in the genus Brachycephalus. The study published by a group at the State University of Campinas provides detailed information about its anatomy, skeleton, and internal organs.
Researchers at Klick Labs developed an AI technique using vocal biomarkers to predict chronic high blood pressure with up to 84% accuracy. The study used machine learning to analyze hundreds of indiscernible vocal biomarkers, including pitch variability and speech energy distribution patterns.
A breakthrough in brain-computer interfaces allows a patient to communicate using only the power of thought. The study, led by Dr. Ariel Tankus, enables individuals with paralysis to signal 'yes' and 'no' through electrical signals in their brain.
Research by Lancaster University found that people in higher social grades, including corporate world and education sectors, are adopting each other's speech patterns to be more inclusive. This 'resonance' has increased over the past 20 years, particularly among those with high social status.
Researchers analyzed 130 English-learning infants' vocalizations and found significant cluster patterns of squeals and growls, indicating active play and sound practice. These findings suggest that infant vocal category exploration is a fundamental pathway for language development.
A new method of determining sperm whale communication reveals that groups living in close proximity develop similar vocal styles, indicating social learning between neighbouring clans. The study provides evidence for the existence of social learning in sperm whales.
Researchers analyzed the calls of two male emperor penguins, E-79 and E-81, and discovered a unique combination of masculine and feminine characteristics. This finding could lead to new methods for studying penguin behavior and assessing their reproductive state, which is crucial for conservation efforts.
Researchers discovered lemurs possess an additional pair of vocal folds, which they believe is responsible for enriching their vocal repertoire and allowing them to exaggerate their size. This adaptation may have provided a selective advantage in competition for territory or mates.
Research at the Max Planck Institute for Biological Intelligence reveals that zebra finch chicks' first vocalizations play a key role in memorizing adult songs. The chicks' babbling is necessary to initiate the sensory phase of song learning, enabling them to store and recall the learned song.
Researchers at Klick Labs developed an algorithm to detect deepfakes with 80% accuracy by analyzing speech pause patterns, offering a solution to the growing problem of AI-generated content. The study's findings suggest that vocal biomarkers can distinguish between real and fake voices, providing a novel approach to flagging deepfakes.
Researchers demonstrate efficacy of airborne ultrasound technology to detect low-amplitude movements produced by vocalizations at the chest surface. The technology allows for contactless mapping of surface vibrations, offering a better window on respiratory health and enabling better diagnoses of respiratory diseases.
A study by Hokkaido University and Aarhus University reveals a 'nocturnal' surge in vocalization activity among little auks in Arctic summer, contrary to expectations. The findings provide valuable insights into avian behavior under continuous daylight environments.
Researchers found a brainstem region that regulates breathing rhythm, ensuring breathing remains dominant over speech. The circuit also involves premotor neurons in the hindbrain region called the retroambiguus nucleus (RAm), which are activated during vocalization.
A recent study published in JAMA Pediatrics found a strong negative association between screen time and parent-child talk among children aged 12-36 months. Children exposed to more screen time had fewer adult words, vocalizations, and back-and-forth interactions with parents.
A new study finds that Americans from the South mimic Southern speech patterns when actually listening to a Southerner, but only shift their speech when told they're hearing a Southerner. Non-Southerners, however, are influenced by stereotypes and only shift their speech when told so.
A University of Queensland study found humans can correctly identify the emotional context of chickens' clucks, with 69% accuracy. The ability to detect emotional information from vocalisations could improve the welfare of farmed chickens.
Researchers discovered that humans can differentiate between primate vocalizations based on acoustic similarity to human speech. The study suggests that the human brain processes primate calls more efficiently when they are closer in frequency to human language, not just phylogenetically close.
Researchers at Lancaster University find that the 'r' sound is becoming weaker in England, with most young speakers softening it to an elongation of the vowel. This decline is predicted to continue, potentially erasing traditional dialects and linguistic homogenization.
Researchers found that native wren mothers' calls help their newborns develop distinctive vocalizations for food and bonding. The study, published in pre-print by The American Naturalist, reveals the unique 'B element' call produced by females that is also the nestling's begging call.
A new dictionary provides a comprehensive overview of Shakespeare's language, revealing words with reduced mental ability and plant hybrids. The Arden Encyclopedia of Shakespeare's Language offers insights into the linguistic thumbprints of plays and characters, as well as the networks of character interaction.
A new study from North Carolina State University found that the shape of small bones in the throat, called hyoid bones, may be key to determining whether sabertooth tigers purred or roared. The researchers compared the anatomy of modern roaring cats and purring cats to find that the missing bones in saber-toothed tigers' hyoid structur...
Wild orangutans produce two distinct sounds simultaneously, mirroring songbirds and human beatboxers. This finding has significant implications for the evolution of human speech and our shared ancestors' vocal capabilities.
Researchers found that orangutans can produce two separate sounds simultaneously, like songbirds or human beatboxers. This phenomenon may hold clues about the evolution of human language and its similarities to beatboxing.
VIRTUOSO, developed by Dr. Hyunkook Lee from the University of Huddersfield's Applied Psychoacoustics Lab, enables immersive 3D audio without loudspeakers through binaural technology powered by ASPEN. This technology simulates the ambience and reflections found in a room with headphones, allowing for accurate translation to real speakers.
A new study found that male infants make 10% more utterances in the first year compared to females, but this difference switches direction by the second year. The researchers suggest that male infants may have an evolutionary advantage due to their higher mortality rate in the first year.
A study by the University of Zurich found that chimpanzees understand and respond strongly to combined calls, which they use to recruit group members in threatening situations. This discovery sheds light on the potential evolutionary origins of language's compositional structure, suggesting it may be at least 6 million years old.
Researchers recorded and identified mating and feeding sounds of 21 ocean species, including those influenced by the moon. The study's findings will contribute to the development of the Global Library of Underwater Biological Sounds (GLUBS), an open-access online platform for monitoring changes in marine environments.
Researchers found fish and bottlenose dolphins react differently to life in noisy shipping corridor of Charleston Harbor Estuary. Fish calls and choruses decreased with increasing anthropogenic noise, while dolphins ramped up their vocalizations. This study highlights the impact of human activities on marine wildlife.
Scripps Oceanography researchers developed a machine learning method to separate fish chorusing sounds from the overall ocean noise, enabling faster analysis and identification. The 'SoundScape Learning' technique can be applied to other soundscapes to learn more about animals like frogs, birds, and bats.
Biologists found songbirds can assess when predation risk from northern pygmy owls is highest and when there's safety in numbers. Mobbing behavior peaked in late summer and autumn when young birds are most vulnerable.
Seal pups possess an innate ability to change their voice pitch and volume, as well as recognize and respond to rhythmic sounds. This study suggests a possible evolutionary link between human-like language abilities and vocal plasticity in seals.