Traditionally, the speech reception threshold (SRT) for sentences in noise is measured in stationary speech-shaped noise; however, non-stationary masking noises are gradually becoming more common. A previous study by Rhebergen et al. (2006) suggested that a learning effect might be present for the SRT in interrupted noise but not in stationary noise. The current study tested if a stable SRT for female or male speech is reached by determining SRTs in listeners with normal hearing in either stationary or 8-Hz interrupted noise after five replications. Contrary to repeated SRT measurements in stationary noise, a significant improvement was observed for SRTs in interrupted noise with replication. For both speech materials, after five replications, the SRT in interrupted noise improved about 3 to 4 dB in comparison to the first SRT. Stable thresholds seem to be reached after about two replications. This experiment shows that there is a substantial learning effect present in SRT measurements with interrupted noise but not in stationary noise. With non-stationary noise, it is recommended to include a repeated measures design.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/14992020701883224 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Background: The effect of environmental fidelity on the development of teamwork skills in health care simulations is unclear. This preliminary descriptive study explored how in situ and laboratory environments impact the development of teamwork skills among novice trauma professionals.
Method: Four teams of six novice trauma professionals participated in two in situ or two laboratory simulations.
Redesigning the Hospital Environment to Improve Restfulness.
JAMA Netw Open
December 2024
Healthcare Innovation Lab, BJC HealthCare, St Louis, Missouri.
Importance: Hospital wards are often not conducive to patient sleep, negatively affecting patient health and experience.
Objectives: To assess determinants of in-hospital restfulness and to design and test rest-promoting interventions on the wards in partnership with clinicians, staff, and patients.
Design, Setting, And Participants: This rapid-sequential mixed-methods quality improvement study was performed at a large urban academic hospital in St Louis, Missouri, from May 1, 2021, to December 31, 2022, with follow-up through hospitalization.
Quantification of phase separation in high moisture soy protein extrudates by NMR and MRI.
Food Res Int
December 2024
Laboratory of Biophysics, Wageningen University and Research, Wageningen, The Netherlands. Electronic address:
High-moisture (HM) extrusion is the dominant industrial process to create structured plant-based protein products that can be used for animal-free meat alternatives. Yet, the underlying mechanisms, such as phase separation, that govern structure formation in plant-protein extrudates, are still poorly understood. Current hypotheses require experimental data in order to be verified, but measurement techniques able to quantify phase-separated anisotropic protein extrudates are lacking, or have yet to be validated.
View Article and Find Full Text PDFRapid sensorimotor adaptation to auditory midbrain silencing in free-flying bats.
Curr Biol
December 2024
Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA; Kavli Neuroscience Discovery Institute, Johns Hopkins University, Baltimore, MD 21218, USA; The Solomon Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
Echolocating bats rely on rapid processing of auditory information to guide moment-to-moment decisions related to echolocation call design and flight path selection. The fidelity of sonar echoes, however, can be disrupted in natural settings due to occlusions, noise, and conspecific jamming signals. Behavioral sensorimotor adaptation to external blocks of relevant cues has been studied extensively, but little is known about adaptations that mitigate internal sensory flow interruption.
View Article and Find Full Text PDFNoise schemas aid hearing in noise.
Proc Natl Acad Sci U S A
November 2024
Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139.
Human hearing is robust to noise, but the basis of this robustness is poorly understood. Several lines of evidence are consistent with the idea that the auditory system adapts to sound components that are stable over time, potentially achieving noise robustness by suppressing noise-like signals. Yet background noise often provides behaviorally relevant information about the environment and thus seems unlikely to be completely discarded by the auditory system.
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!