Learned vocalizations depend on the ear's ability to monitor and ultimately instruct the voice. Where is auditory feedback processed in the brain, and how does it modify motor networks for learned vocalizations? Here we addressed these questions using singing-triggered microstimulation and chronic recording methods in the singing zebra finch, a small songbird that relies on auditory feedback to learn and maintain its species-typical vocalizations. Manipulating the singing-related activity of feedback-sensitive thalamic neurons subsequently triggered vocal plasticity, constraining the central pathway and functional mechanisms through which feedback-related information shapes vocalization.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2822725 | PMC |
| http://dx.doi.org/10.1016/j.neuron.2009.12.008 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Improving Real-Time Feedback During Cochlear Implantation: The Auditory Nerve Neurophonic/Cochlear Microphonic Ratio.
Ear Hear
January 2025
Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands.
Objectives: Real-time monitoring of cochlear function to predict the loss of residual hearing after cochlear implantation is now possible. Current approaches monitor the cochlear microphonic (CM) during implantation from the electrode at the tip of the implant. A drop in CM response of >30% is associated with poorer hearing outcomes.
View Article and Find Full Text PDFPartially observable Markov models inferred using statistical tests reveal context-dependent syllable transitions in Bengalese finch songs.
J Neurosci
January 2025
Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
Generative models have diverse applications, including language processing and birdsong analysis. In this study, we demonstrate how a statistical test, designed to prevent overgeneralization in sequence generation, can be used to infer minimal models for the syllable sequences in Bengalese finch songs. We focus on the partially observable Markov model (POMM), which consists of states and the probabilistic transitions between them.
View Article and Find Full Text PDFAdvancements in Smart Wearable Mobility Aids for Visual Impairments: A Bibliometric Narrative Review.
Sensors (Basel)
December 2024
Department of Industrial Design, Guangdong University of Technology, Guangzhou 510006, China.
Research into new solutions for wearable assistive devices for the visually impaired is an important area of assistive technology (AT). This plays a crucial role in improving the functionality and independence of the visually impaired, helping them to participate fully in their daily lives and in various community activities. This study presents a bibliometric analysis of the literature published over the last decade on wearable assistive devices for the visually impaired, retrieved from the Web of Science Core Collection (WoSCC) using CiteSpace, to provide an overview of the current state of research, trends, and hotspots in the field.
View Article and Find Full Text PDFProsodic Modifications to Challenging Communicative Environments in Preschoolers.
Lang Speech
January 2025
Department of Educational Psychology, Leadership, & Counseling, Texas Tech University, USA.
Adapting one's speaking style is particularly crucial as children start interacting with diverse conversational partners in various communication contexts. The study investigated the capacity of preschool children aged 3-5 years ( = 28) to modify their speaking styles in response to background noise, referred to as noise-adapted speech, and when talking to an interlocutor who pretended to have hearing loss, referred to as clear speech. We examined how two modified speaking styles differed across the age range.
View Article and Find Full Text PDFAudiomotor temporal recalibration modulates feeling of control: Exploration through an online experiment and Bayesian modeling.
Conscious Cogn
December 2024
Department of Business and Marketing, Faculty of Commerce, Kyushu Sangyo University, 3-1 Matsukadai 2-Chome, Higashi-ku, Fukuoka 813-8503, Japan. Electronic address:
Article Synopsis
- The online experiment tested how delayed auditory feedback impacts participants' feelings of control (agency) over tone sequences.
- Participants practiced reproducing sequences with either immediate or delayed feedback and were later subjected to a scenario where the computer sometimes took over generating tones.
- Results showed that both agency and simultaneity judgments shifted after experiencing the delay, but the agency judgment changed more significantly, confirming Sugano's earlier findings and demonstrating the potential of online experiments in studying agency.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!