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Nitric oxide regulates the firing rate of neuronal subtypes in the guinea pig ventral cochlear nucleus (2019)
Journal Article
Hockley, A., Berger, J. I., Smith, P. A., Palmer, A. R., & Wallace, M. N. (2019). Nitric oxide regulates the firing rate of neuronal subtypes in the guinea pig ventral cochlear nucleus. European Journal of Neuroscience, https://doi.org/10.1111/ejn.14572

The gaseous free radical, nitric oxide (NO) acts as a ubiquitous neuromodulator, contributing to synaptic plasticity in a complex way that can involve either long term potentiation or depression. It is produced by neuronal nitric oxide synthase (nNOS... Read More about Nitric oxide regulates the firing rate of neuronal subtypes in the guinea pig ventral cochlear nucleus.

Standardized questions in English for estimating tinnitus prevalence and severity, hearing difficulty and usage of healthcare resources, and their translation into 11 European languages (2019)
Journal Article
Biswas, R., Lugo, A., Gallus, S., Akeroyd, M. A., & Hall, D. A. (2019). Standardized questions in English for estimating tinnitus prevalence and severity, hearing difficulty and usage of healthcare resources, and their translation into 11 European languages. Hearing Research, 377, 330-338. doi:10.1016/j.heares.2019.02.008

INTRODUCTION: Prevalence estimates depend largely on the nature of the question asked to define the presence of the health condition, and the literature on the population burden of tinnitus and hearing difficulties is no different in this respect. Th... Read More about Standardized questions in English for estimating tinnitus prevalence and severity, hearing difficulty and usage of healthcare resources, and their translation into 11 European languages.

Discrimination of gain increments in speech-shaped noises (2019)
Journal Article
Caswell-Midwinter, B., & Whitmer, W. (2019). Discrimination of gain increments in speech-shaped noises. Trends in Hearing, 23, 1-12. https://doi.org/10.1177/2331216518820220

Frequency-dependent gain adjustments are routine in hearing-aid fittings, whether in matching to real-ear targets or fine-tuning to patient feedback. Patient feedback may be unreliable and fittings inefficient if adjustments are not discriminable. To... Read More about Discrimination of gain increments in speech-shaped noises.

The pupil dilation response during speech perception in dark and light: the involvement of the parasympathetic nervous system in listening effort (2018)
Journal Article
Wang, Y., Kramer, S. E., Wendt, D., Naylor, G., Lunner, T., & Zekveld, A. A. (2018). The pupil dilation response during speech perception in dark and light: the involvement of the parasympathetic nervous system in listening effort. Trends in Hearing, 22, 1-11. doi:10.1177/2331216518816603

Recently, the measurement of the pupil dilation response has been applied in many studies to assess listening effort. Meanwhile, the mechanisms underlying this response are still largely unknown. We present the results of a method that separates the... Read More about The pupil dilation response during speech perception in dark and light: the involvement of the parasympathetic nervous system in listening effort.

Mammalian behavior and physiology converge to confirm sharper cochlear tuning in humans (2018)
Journal Article
Sumner, C., Wells, T., Bergevin, C., Sollini, J., Kreft, H., Palmer, A., …Shera, C. (2018). Mammalian behavior and physiology converge to confirm sharper cochlear tuning in humans. Proceedings of the National Academy of Sciences, doi:10.1073/pnas.1810766115. ISSN 1091-6490

Frequency analysis of sound by the cochlea is the most fundamental property of the auditory system. Despite its importance, the resolution of this frequency analysis in humans remains controversial. The controversy persists because the methods used t... Read More about Mammalian behavior and physiology converge to confirm sharper cochlear tuning in humans.

Changes in neuronal representations of consonants in the ascending auditory system and their role in speech recognition (2018)
Journal Article
Steadman, M. A., & Sumner, C. J. (2018). Changes in neuronal representations of consonants in the ascending auditory system and their role in speech recognition. Frontiers in Neuroscience, 12, doi:10.3389/fnins.2018.00671. ISSN 1662-4548

A fundamental task of the ascending auditory system is to produce representations that facilitate the 11 recognition of complex sounds. This is particularly challenging in the context of acoustic variability, 12 such as that between different talkers... Read More about Changes in neuronal representations of consonants in the ascending auditory system and their role in speech recognition.

Revisiting models of concurrent vowel identification: the critical case of no pitch differences (2018)
Journal Article
Smith, S. S., Chintanpalli, A., Heinz, M. G., & Sumner, C. J. (2018). Revisiting models of concurrent vowel identification: the critical case of no pitch differences. Acta Acustica united with Acustica, 104(5), 922-925. doi:10.3813/AAA.919244

When presented with two vowels simultaneously, humans are often able to identify the constituent vowels. Computational models exist that simulate this ability, however they predict listener confusions poorly, particularly in the case where the two vo... Read More about Revisiting models of concurrent vowel identification: the critical case of no pitch differences.

A low-frequency dual-band operational microphone mimicking the hearing property of Ormia Ochracea (2018)
Journal Article
Zhang, Y., Bauer, R., Jackson, J. C., Whitmer, W. M., Windmill, J. F. C., & Uttamchandani, D. (2018). A low-frequency dual-band operational microphone mimicking the hearing property of Ormia Ochracea. Journal of Microelectromechanical Systems, 27(4), (667-676). doi:10.1109/jmems.2018.2845680. ISSN 1057-7157

This paper introduces a directional MEMS microphone designed for hearing aid applications appropriate to low-frequency hearing impairment, inspired by the hearing mechanism of a fly, the female Ormia ochracea. It uses both piezoelectric and capacitiv... Read More about A low-frequency dual-band operational microphone mimicking the hearing property of Ormia Ochracea.

A MEMS microphone inspired by Ormia for spatial sound detection (2018)
Conference Proceeding
Zhang, Y., Bauer, R., Whitmer, W. M., Jackson, J. C., Windmill, J. F., & Uttamchandani, D. (2018). A MEMS microphone inspired by Ormia for spatial sound detection. In 2018 IEEE Micro Electro Mechanical Systems (MEMS), 253-256. doi:10.1109/memsys.2018.8346532

This work introduces a MEMS microphone with two pairs of orthogonal and joined sensor membranes, with independent acoustic directionality responses, leading to a 3D sound localization potential. This single microphone can thus be regarded as two indi... Read More about A MEMS microphone inspired by Ormia for spatial sound detection.