This study compared the dependence of comodulation masking release (CMR) and monaural envelope correlation perception (MECP) on the degree of envelope correlation for the same narrowband noise stimuli. Envelope correlation across noise bands was systematically varied by mixing independent bands with a base set of comodulated bands. The magnitude of CMR fell monotonically with reductions in envelope correlation, and CMR varied over a range of envelope correlations that were not discriminable from each other in the MECP paradigm. For complexes of 100-Hz-wide noise bands, discrimination thresholds in the MECP task were similar whether the standard was a comodulated set of noise bands or a completely independent set of noise bands. This was not the case for 25-Hz-wide noise bands. Although the data demonstrate that CMR and MECP exhibit different dependencies on the degree of envelope correlation, some commonality across the two phenomena was observed. Specifically, for 25-Hz-wide bands of noise, there was a robust relationship between individual listeners' sensitivity to decorrelation from an otherwise comodulated set of noise bands and the magnitude of CMR measured for those same comodulated noise bands.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3745494 | PMC |
| http://dx.doi.org/10.1121/1.4812256 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optogenetic stimulation and simultaneous optical mapping of membrane potential and calcium transients in human engineered cardiac spheroids.
J Mol Cell Cardiol
December 2024
Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35233, United States of America. Electronic address:
Optogenetic stimulation combined with optical mapping of membrane potential (Vm) and calcium transients (CaT) is a powerful electrophysiological tool. We developed a novel experimental platform in which tissue is stimulated optogenetically while Vm and CaT are imaged simultaneously. The Vm indicator is an organic dye, while the CaT indicator is genetically encoded.
View Article and Find Full Text PDFImpact of short-term aircraft noise on cardiovascular disease risk in the area surrounding London Heathrow airport: the RISTANCO epidemiological study.
Public Health Res (Southampt)
December 2024
Centre for Environmental Health and Sustainability, University of Leicester, Leicester, UK.
Background: Long-term exposure to aircraft noise has been associated with small increases in cardiovascular disease risk, but there are almost no short-term exposure studies.
Objectives: Research questions were: Is there an association between short-term changes in exposure to aircraft noise and cardiovascular morbidity and mortality? What are the key effect modifiers? Is there variability in risk estimates between areas with consistent versus changing patterns of noise exposure? Do risk estimates differ when using different noise metrics?
Design: Descriptive analyses of noise levels and variability at different times of day, analyses of inequalities in noise exposure and case-crossover analyses of cardiovascular events in relation to aircraft noise exposure.
Setting: Area surrounding London Heathrow airport.
Advancing mechanical testing of biological tissues and hydrogels: A buoy-based approach.
J Biomech
January 2025
Paul M. Rady Department of Mechanical Engineering, University of Colorado, Boulder 1111 Engineering Dr, Boulder, CO 80309, United States. Electronic address:
Quantifying the material properties of tissues and hydrogels aids in the development of biomedical applications through better understanding of the mechanics and mechanobiological principles at play. This study introduces a mechanical testing platform designed to address challenges in measuring mm-scale tissue and hydrogel material properties. Using a floating buoy design, the platform enables horizontal submerged tensile testing with non-submersible load cells.
View Article and Find Full Text PDFTheta oscillations optimize a speed-precision trade-off in phase coding neurons.
PLoS Comput Biol
December 2024
Instituto de Neurociencias de Alicante, Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Miguel Hernández de Elche, Alicante, Spain.
Article Synopsis
- Theta-band oscillations (3-8 Hz) in the hippocampus help organize input from the cortex, which is crucial for forming episodic memories and navigating spaces.
- The study introduces a theoretical framework that balances the speed of information sampling and accuracy, revealing that while higher frequencies might seem better, theta oscillations provide an optimal information rate (1-2 bits/s).
- This framework explains key features of the hippocampus, like the consistent presence of theta waves and their modulation by factors like running speed, and suggests that these oscillations may also benefit other brain regions, paving the way for further research on optimal brain functioning.
Harnessing electromagnetic data for tsunami source estimation: a comprehensive review.
Philos Trans A Math Phys Eng Sci
December 2024
Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University, Kyoto, Japan.
Ocean-bottom pressure gauges are widely used for tsunami observations due to their established accuracy and stability. Recent advancements reveal that the magnetic field fluctuates when a large tsunami passes over the ocean, suggesting potential alternatives to pressure gauges in the form of ocean-bottom electromagnetometers (OBEMs). This article offers a comprehensive synthesis of recent findings concerning tsunami magnetic fields and their utility in tsunami source estimation.
View Article and Find Full Text PDFWant 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!