Article
Neurosciences
Michaela Mueller, Hongmei Hu, Mathias Dietz, Barbara Beiderbeck, Dardo N. Ferreiro, Michael Pecka
Summary: The ability to localize a sound source is crucial for communication and navigation, and hearing impairments can negatively affect sound localization. Cochlear implants have been successful in restoring many hearing capabilities, but sound localization with bilateral cochlear implants remains poor. This study investigates the reasons behind this and finds that electrical stimulation from cochlear implants alters the input statistics of the binaural processing stage, leading to diminished ITD sensitivity. A computational model predicts that electrical stimulation affects spatial sensitivity, making adjacent source locations inseparable. The findings suggest that the temporal hyper-precision of inputs induced by electrical stimulation may be a central problem underlying the reduced ITD sensitivity in cochlear implant users.
FRONTIERS IN NEUROSCIENCE
(2023)
Review
Computer Science, Interdisciplinary Applications
Dhwani Desai, Ninad Mehendale
Summary: Sound source localization (SSL) is an important technology in robots and humanoids to find the direction of a sound source. In the past two decades, research has been done to optimize SSL techniques and enhance their accuracy. This review categorizes various proposed SSL techniques into four types, including conventional algorithms and convolutional neural networks (CNN).
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2022)
Article
Biology
Ravinderjit Singh, Hari M. Bharadwaj
Summary: The study found that the auditory cortex can synchronize to dynamic binaural cues at lower modulation rates, which aligns with the limits of perceiving dynamic spatial information and utilizing dynamic binaural cues for spatial unmasking. The tracking limit for frequency modulation (FM) is similar to the limit for spatial tracking, suggesting a general perceptual limit that can be accounted for by cortical temporal integration limits. Human cortical synchronization measured via EEG can predict limits of auditory spatial tracking.
COMMUNICATIONS BIOLOGY
(2023)
Article
Audiology & Speech-Language Pathology
Fernando M. San-Victoriano, Almudena Eustaquio-Martin, Enrique A. Lopez-Poveda
Summary: A binaural sound pre-processing method was proposed to improve speech intelligibility for hearing-impaired listeners in noisy environments. In experiments involving bilateral and unilateral listening, it was found that the method improved speech reception thresholds for spatially separated target and masker sources.
Article
Neurosciences
Yue Long, Wei Wang, Jiao Liu, Ke Liu, Shusheng Gong
Summary: This study aimed to investigate whether tinnitus affects the ability to localize sound in participants with normal hearing and whether the effect is related to the type of stimulus. The results showed that tinnitus interfered with the ability to localize pure tones, but had no effect on the ability to localize monosyllables. Therefore, the interference of tinnitus in localizing sound sources is related to the type of stimulus.
FRONTIERS IN NEUROSCIENCE
(2023)
Article
Audiology & Speech-Language Pathology
Virginia Best, Lucas S. Baltzell, H. Steven Colburn
Summary: Listeners with hearing loss may experience more severe deficit in perceiving ITDs at high frequencies compared to low frequencies. However, the extent of this deficit may vary among individuals, with some showing a stronger frequency-dependent effect.
Article
Audiology & Speech-Language Pathology
Enrique A. Lopez-Poveda, Almudena Eustaquio-Martin, Fernando M. San-Victoriano
Summary: This study proposes a linear subtraction algorithm to attenuate the sound field opposite to the target source, enhancing the understanding of speech presented in competition with other sounds. The algorithm significantly improves signal-to-noise ratio and speech reception thresholds without affecting virtual sound-source lateralization. This research is valuable for users of binaural hearing devices.
Review
Audiology & Speech-Language Pathology
Brian C. J. Moore
Summary: The paper discusses the effects of age and hearing loss on binaural processing, revealing that the binaural processing of TFS information is adversely affected by both hearing loss and increasing age, while the binaural processing of ENV information is mainly influenced by age.
Review
Neurosciences
Frederick J. Gallun
Summary: This review highlights the impact of conditions like peripheral hearing loss, aging, traumatic brain injury, strokes, brain tumors, and multiple sclerosis on binaural function. While potential impairments are acknowledged, a thorough understanding requires multiple behavioral and neurophysiological measurements. The integration of clinical research with animal and computational modeling is crucial for future advancements in this area.
FRONTIERS IN NEUROSCIENCE
(2021)
Article
Audiology & Speech-Language Pathology
Jakeh Orr, William Ebel, Yan Gai
Summary: This study used model simulations to explore an algorithm for localizing multiple sound sources, and the results show that the algorithm can accurately localize sound sources under different conditions.
Article
Neurosciences
Kenny F. Chou, Alexander D. Boyd, Virginia Best, H. Steven Colburn, Kamal Sen
Summary: Listening in acoustically cluttered scenes is challenging, and this paper presents a binaural sound segregation algorithm based on a hierarchical network model of the auditory system to enhance selective listening in such environments.
FRONTIERS IN NEUROSCIENCE
(2022)
Article
Biology
G. Capshaw, J. Christensen-Dalsgaard, D. Soares, C. E. Carr
Summary: Sound and vibration are important for survival, and early terrestrial tetrapods lacked specialized structures for sound transduction, requiring extratympanic mechanisms for hearing. Atympanate salamanders show directional auditory sensitivity to airborne sound through extratympanic pathways.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Neurosciences
Stephen M. Town, Jennifer K. Bizley
Summary: In this study, we found that ferrets can localize sounds in both world-centered and head-centered spaces, and demonstrated that they use continuous maps of auditory space to guide their behavior. Furthermore, we were able to accurately predict ferrets' actions in unknown spaces by modeling sound localization.
JOURNAL OF NEUROSCIENCE
(2022)
Article
Audiology & Speech-Language Pathology
Sterling W. Sheffield, Harley J. Wheeler, Douglas S. Brungart, Joshua G. W. Bernstein
Summary: Information about the spatial location of sound sources is important for speech perception, providing cues for separating talkers and locating the speaker for visual speech information. This study investigated how spatial-hearing benefits interact in a multitalker environment using a real-time processing algorithm. The results showed that sound localization is crucial for separating competing speech and orienting to the target talker for visual speech cues.
Article
Engineering, Mechanical
Jakub Gorski, Kajetan Dziedziech, Andrzej Klepka
Summary: Damage detection methods based on phenomena from non-linear acoustics, particularly the Modulation Transfer phenomenon, are valuable tools for fault localization. This paper investigates different modulation types related to Modulation Transfer and proposes a specialized algorithm to extract modulation-related components from response signals. Experimental results on a damaged beam demonstrate the effectiveness of the modulation transfer phenomenon in damage localization, especially when using separated amplitude and frequency modulation indicators.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Cell & Tissue Engineering
David Petrik, Michael H. Myoga, Sofia Grade, Niklas J. Gerkau, Melanie Pusch, Christine R. Rose, Benedikt Grothe, Magdalena Goetz
Article
Neurosciences
Ida Siveke, Julian J. Ammer, Sarah A. Gleiss, Benedikt Grothe, Christian Leibold, Felix Felmy
EUROPEAN JOURNAL OF NEUROSCIENCE
(2018)
Article
Neurosciences
Sonja Brosel, Benedikt Grothe, Lars Kunz
EUROPEAN JOURNAL OF NEUROSCIENCE
(2018)
Article
Neurosciences
Veronika Bednarova, Benedikt Grothe, Michael H. Myoga
JOURNAL OF PHYSIOLOGY-LONDON
(2018)
Article
Neurosciences
Ida Siveke, Andrea Lingner, Julian J. Ammer, Sarah A. Gleiss, Benedikt Grothe, Felix Felmy
FRONTIERS IN NEURAL CIRCUITS
(2019)
Article
Biochemistry & Molecular Biology
Helge Gleiss, Joerg Encke, Andrea Lingner, Todd R. Jennings, Sonja Brosel, Lars Kunz, Benedikt Grothe, Michael Pecka
Article
Biotechnology & Applied Microbiology
Shifeng Cheng, Yuan Fu, Yaolei Zhang, Wenfei Xian, Hongli Wang, Benedikt Grothe, Xin Liu, Xun Xu, Achim Klug, Elizabeth A. McCullagh
Article
Neurosciences
Ezhilarasan Rajaram, Sara Pagella, Benedikt Grothe, Conny Kopp-Scheinpflug
JOURNAL OF NEUROPHYSIOLOGY
(2020)
Article
Neurosciences
Stefanie Goetz, Ana Bribian, Laura Lopez-Mascaraque, Magdalena Goetz, Benedikt Grothe, Lars Kunz
Summary: Heterogeneity of astrocytes is increasingly recognized, with juxtavascular astrocytes having a clonal origin and showing profound changes in electrophysiological properties after traumatic brain injury.
Article
Behavioral Sciences
Dardo N. Ferreiro, Diana Amaro, Daniel Schmidtke, Andrey Sobolev, Paula Gundi, Lucile Belliveau, Anton Sirota, Benedikt Grothe, Michael Pecka
FRONTIERS IN BEHAVIORAL NEUROSCIENCE
(2020)
Article
Multidisciplinary Sciences
Ida Siveke, Mike H. Myoga, Benedikt Grothe, Felix Felmy
Summary: Research shows that during moderate omnidirectional noise exposure, the input resistance of neurons in the medial superior olive decreases, while the action potential current threshold increases, leading to more efficient high frequency output generation. Noise exposure also accelerates the occurrence of spontaneous postsynaptic currents.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Diana Amaro, Dardo N. Ferreiro, Benedikt Grothe, Michael Pecka
Summary: The study shows that the majority of spatially sensitive neurons in the auditory cortex change their egocentric angle preference depending on the task-specific identity of the sound source, indicating a novel cortical computation principle for naturalistic sensing during self-motion.
Article
Neurosciences
Zhizi Jing, Michael Pecka, Benedikt Grothe
Summary: The study explored how the depth of ketamine-xylazine anesthesia affects response properties of lateral superior olive complex neurons, and auditory brainstem evoked responses, indicating that increasing anesthesia depth impacts spontaneous discharge activities, response threshold, temporal responses, and first spike latency. These findings underscore the importance of considering both the type of anesthetics and the anesthesia depth when interpreting or comparing in vivo neuronal recordings.
JOURNAL OF NEUROPHYSIOLOGY
(2021)
Article
Biology
Pepe Alcami, Santhosh Totagera, Nina Sohnius-Wilhelmi, Stefan Leitner, Benedikt Grothe, Carolina Frankl-Vilches, Manfred Gahr
Summary: Electrical synapses are widely expressed in songbird premotor nuclei, showing brain region-specific, cell type-specific expression patterns. This suggests that songbirds may serve as a suitable model for investigating the contribution of electrical synapses to motor skill learning and production.
Article
Neurosciences
Ezhilarasan Rajaram, Carina Kaltenbach, Matthew J. Fischl, Leander Mrowka, Olga Alexandrova, Benedikt Grothe, Matthias H. Hennig, Conny Kopp-Scheinpflug