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Neural correlates of perceptual plasticity in the auditory midbrain and thalamus.
J Neurosci
January 2025
Neuroscience and Cognitive Science Program, University of Maryland, College Park, Maryland, 20742.
Hearing is an active process in which listeners must detect and identify sounds, segregate and discriminate stimulus features, and extract their behavioral relevance. Adaptive changes in sound detection can emerge rapidly, during sudden shifts in acoustic or environmental context, or more slowly as a result of practice. Although we know that context- and learning-dependent changes in the sensitivity of auditory cortical (ACX) neurons support many aspects of perceptual plasticity, the contribution of subcortical auditory regions to this process is less understood.
View Article and Find Full Text PDFIndividual differences elucidate the perceptual benefits associated with robust temporal fine-structure processing.
Proc Natl Acad Sci U S A
January 2025
Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, PA 15213.
Article Synopsis
- The auditory system can precisely track quick changes in sound, but the importance of this ability (temporal fine structure or TFS) for hearing is still debated.
- Researchers studied 200 participants to see how TFS sensitivity affects speech perception in noisy environments.
- Results showed that better TFS sensitivity helped more with listening in reverberant spaces and led to quicker responses, suggesting it plays a key role in everyday hearing experiences.
Effect of sign language learning on temporal resolution of visual attention.
J Vis
January 2025
Department of Communicative Disorders, University of Alabama, Tuscaloosa, AL, USA.
The visual environment of sign language users is markedly distinct in its spatiotemporal parameters compared to that of non-signers. Although the importance of temporal and spectral resolution in the auditory modality for language development is well established, the spectrotemporal parameters of visual attention necessary for sign language comprehension remain less understood. This study investigates visual temporal resolution in learners of American Sign Language (ASL) at various stages of acquisition to determine how experience with sign language affects perceptual sampling.
View Article and Find Full Text PDFLearning to hear again with alternating cochlear frequency allocations.
Sci Rep
January 2025
Department of ENT/Audiology & School for Mental Health and NeuroScience (MHENS), Maastricht University Medical Centre, Maastricht, The Netherlands.
Traditionally, the place-pitch 'tonotopically' organized auditory neural pathway was considered to be hard-wired. Cochlear implants restore hearing by arbitrarily mapping frequency-amplitude information. This study shows that recipients, after a long period of sound deprivation, preserve a level of auditory plasticity, enabling them to swiftly and concurrently learn speech understanding with two alternating, distinct frequency maps.
View Article and Find Full Text PDFSmall-group, online, actor-as-instructor clinical interview training: a single-blind, randomised controlled study.
East Asian Arch Psychiatry
December 2024
Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong SAR, China.
Background: The use of actors as standardised patient-instructors (SPI) in clinical interview training in the psychiatry module of the medical curriculum is welcomed by medical students. This study aims to examine the effectiveness of this training in enhancing medical students' psychiatric interview skills.
Methods: This was a single-blind randomised controlled study with two arms.
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