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Human auditory perception and evaluation
Research Guide
What is Human auditory perception and evaluation?
Human auditory perception and evaluation is the study of how humans detect, process, and assess hypersonic and ultrasonic stimuli, including their physiological effects on brain activity, mental workload, nasal temperature, bone-conducted hearing, and facial skin thermography.
This field encompasses 165,619 works examining physiological responses to high-frequency sounds. Key mechanisms include bone conduction pathways such as inertia of cochlear fluids and compression of cochlear walls, as identified in foundational studies. Research quantifies transfer functions from sound fields to the ear canal across multiple directions.
Topic Hierarchy
Research Sub-Topics
Hypersonic Effect on Brain Activity
This sub-topic examines brainwave changes and autonomic responses to high-frequency sounds above 20 kHz. Researchers use EEG and fMRI to probe perceptual and emotional impacts.
Bone-Conducted Hearing Mechanisms
This sub-topic investigates vibration transmission from skull to cochlea, including fluid pathways. Studies compare air vs. bone conduction thresholds and implant efficacy.
Ultrasonic Perception Physiology
This sub-topic tests human detection of ultrasound via air or bone paths, measuring just-noticeable differences. Researchers correlate with cochlear microphonics and otoacoustic emissions.
Mental Workload Auditory Assessment
This sub-topic uses high-frequency tones to quantify cognitive load via physiological markers like heart rate variability. Applications include aviation and driving safety monitoring.
Facial Thermography in Auditory Response
This sub-topic applies infrared imaging to track nasal and facial blood flow changes during sound exposure. Studies link thermograms to arousal and emotional valence.
Why It Matters
Human auditory perception and evaluation informs clinical rehabilitation for total deafness through intracochlear electrode implantation, as demonstrated by Chouard and MacLeod (1976) who restored partial hearing by stimulating preserved cochlear nerve fibers. In otology, Stenfelt and Goode (2005) detailed five bone conduction factors, aiding prosthetic hearing device design with 414 citations. Physiological markers like respiratory sinus arrhythmia, modulated by breathing patterns as shown by Hirsch and Bishop (1981) with 1094 citations, enable non-invasive assessment of mental workload and arousal, applicable in aerospace engineering for evaluating pilot responses to ultrasonic stimuli.
Reading Guide
Where to Start
'Bone-Conducted Sound: Physiological and Clinical Aspects' by Stenfelt and Goode (2005), as it clearly identifies the five key factors of bone conduction hearing with direct relevance to ultrasonic perception.
Key Papers Explained
Hirsch and Bishop (1981) in 'Respiratory sinus arrhythmia in humans: how breathing pattern modulates heart rate' establishes physiological baselines for autonomic responses, which Porges (1986) expands in 'Respiratory Sinus Arrhythmia: Physiological Basis, Quantitative Methods, and Clinical Implications' with clinical methods. Stenfelt and Goode (2005) in 'Bone-Conducted Sound: Physiological and Clinical Aspects' builds on this by detailing bone conduction mechanisms, complemented by Sohmer et al. (2000) experiments in 'Bone conduction experiments in humans – a fluid pathway from bone to ear' confirming fluid pathways. Mehrgardt and Mellert (1977) in 'Transformation characteristics of the external human ear' provides ear acoustics foundational to these perceptual studies.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Recent preprints explore VR influences on mental effort in sound evaluations and vibrotactile-auditory timbre interactions. 'Consensus Auditory-Perceptual Evaluation of Voice' reviews peripheral to central processing, while 'Evolving perspectives on speech perception assessment in adults with cochlear implants' questions test validity. News highlights Neuro-AI for objective hearing assessment challenging pure-tone audiometry.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Respiratory sinus arrhythmia in humans: how breathing pattern ... | 1981 | American Journal of Ph... | 1.1K | ✕ |
| 2 | Bone-Conducted Sound: Physiological and Clinical Aspects | 2005 | Otology & Neurotology | 414 | ✕ |
| 3 | Transformation characteristics of the external human ear | 1977 | The Journal of the Aco... | 248 | ✕ |
| 4 | Auditory S-R compatibility: Reaction time as a function of ear... | 1970 | Journal of Experimenta... | 221 | ✕ |
| 5 | Resting blood pressure increase during exposure to a radio-fre... | 1998 | The Lancet | 193 | ✕ |
| 6 | Respiratory Sinus Arrhythmia: Physiological Basis, Quantitativ... | 1986 | — | 192 | ✕ |
| 7 | Bone conduction experiments in humans – a fluid pathway from b... | 2000 | Hearing Research | 179 | ✕ |
| 8 | Implantation of multiple intracochlear electrodes for rehabili... | 1976 | The Laryngoscope | 171 | ✕ |
| 9 | Changes in Pulse Transit Time and Pulse Rate as Markers of Aro... | 1994 | Clinical Science | 169 | ✕ |
| 10 | Die Mechanik der Gehörknöchelchen und des Trommelfells | 1868 | Pflügers Archiv - Euro... | 165 | ✓ |
In the News
Natural Auditory SCEnes in Humans and Machines ... - CORDIS
hearing impairments. The ERC-funded NASCE project aims to establish the Semantic Segmentation Hypothesis (SSH) to advance our understanding of real-world auditory scene analysis (ASA). SSH suggests...
U of T researchers call for new approach to speech sound ...
*\*Name has been changed to protect privacy* *The clinical trial mentioned in this story was funded by the Natural Science and Engineering Research Council of Canada and the National Institutes of ...
Temporal integration in human auditory cortex is predominantly yoked to absolute time
we rescaled the duration of all speech structures using time stretching and compression and measured integration windows in the human auditory cortex using a new experimental and computational meth...
Evolving perspectives on speech perception assessment in adults with cochlear implants: Are we using the right tests?
# Evolving perspectives on speech perception assessment in adults with cochlear implants: Are we using the right tests? Valeriy Shafiro 1\* Aaron C. Moberly 2David B. Pisoni3,4 Terrin N. Tamati 2
Neuro-AI guided objective hearing assessment and hearing loss compensation
these issues, none have successfully challenged the entrenched position of PTA as the gold standard. The Neurogram presents the most promising potential for comprehensively overcoming both the scie...
Code & Tools
Zimtohrli is a psychoacoustic perceptual metric that quantifies the human observable difference in two audio signals in the proximity of just-notic...
This is a Tensorflow implementation (a pytorch implementation is here ) of our audio perceptual metric. It contains (0) minimal code to run our per...
ViSQOL (Virtual Speech Quality Objective Listener) is an objective, full-reference metric for perceived audio quality. It uses a spectro-temporal m...
# Search code, repositories, users, issues, pull requests... Search Clear Search syntax tips # Provide feedback We read every piece of feedba...
###Research Question: How do we measure how similar two signals sound? ###Introduction
Recent Preprints
Consensus Auditory-Perceptual Evaluation of Voice
perspectives on human perception and the discrimination of sound (Houtsma, 1995; Zwicker, Fastl, & Frater, 1999). He presented a brief review of the anatomy and physiology of the ear, as well as an...
Influence of mental effort on sound evaluations in virtual ...
Psychoacoustic research increasingly relies on virtual reality (VR) to account for the complexity of acoustic scenarios and enhance the ecological validity of laboratory findings. However, recent s...
Long-latency auditory evoked responses across species show ...
humans.
Auditory and vibrotactile interactions in perception of timbre ...
Recently, there has been increasing interest in developing auditory-to-vibrotactile sensory devices. However, the potential of these technologies is constrained by our limited understanding of whic...
Mixed evidence for the rhythmicity of auditory perceptual judgements in humans
demands, and differing analytical approaches for statistical testing. To address these points, we conducted a series of experiments in which human participants performed auditory tasks involving mo...
Latest Developments
Recent developments in human auditory perception and evaluation research include advances in understanding neural mechanisms of sound segregation and perception, with studies highlighting that cortical computations are predominantly time-yoked to absolute time rather than sound structure, and that auditory scene analysis involves complex neural and computational processes (e.g., Nature Neuroscience, 2025; Neuroscience 2025). Additionally, AI tools are increasingly used to study perception, and new therapies such as cell-based treatments are emerging to reverse deafness (e.g., The University of Sheffield, 2026).
Sources
Frequently Asked Questions
What are the main mechanisms of bone-conducted hearing?
Five factors contribute to bone conduction hearing: sound radiated into the external ear canal, middle ear ossicle inertia, inertia of the cochlear fluids, compression of the cochlear walls, and pressure transmission from the cerebrospinal fluid. Stenfelt and Goode (2005) identified these in 'Bone-Conducted Sound: Physiological and Clinical Aspects'. Inertia of cochlear fluids and wall compression dominate at higher frequencies.
How does breathing pattern affect respiratory sinus arrhythmia?
Respiratory sinus arrhythmia amplitude relates directly to tidal volume and inversely to breathing frequency during controlled and spontaneous breathing. Hirsch and Bishop (1981) quantified this in 'Respiratory sinus arrhythmia in humans: how breathing pattern modulates heart rate' using seated subjects with mouthpiece and nose-clip. Larger tidal volumes increase RSA amplitude independently of frequency.
What are transformation characteristics of the external human ear?
Transfer functions from free sound field to ear-canal entrance vary by incidence direction in symmetry and horizontal planes. Mehrgardt and Mellert (1977) measured amplitude and phase on 20 subjects using impulse response techniques in 'Transformation characteristics of the external human ear'. Directional differences affect sound localization and perception.
How is bone conduction experimentally confirmed in humans?
Bone conduction experiments demonstrate a fluid pathway from bone to ear, bypassing outer and middle ear. Sohmer et al. (2000) conducted tests in 'Bone-Conducted Sound: Physiological and Clinical Aspects' showing cochlear activation via bone vibration. This supports hearing preservation in conductive losses.
What physiological markers indicate arousal from sleep?
Changes in pulse transit time and pulse rate mark short arousals in sleep studies. Pitson et al. (1994) validated these in 'Changes in Pulse Transit Time and Pulse Rate as Markers of Arousal from Sleep in Normal Subjects' for obstructive sleep apnoea detection. They enable automated arousal documentation without EEG.
How does auditory S-R compatibility influence reaction time?
Reaction time decreases with ear-hand and ear-response-location correspondence. Simon et al. (1970) showed this in 'Auditory S-R compatibility: Reaction time as a function of ear-hand correspondence and ear-response-location correspondence'. Spatial mapping optimizes human response in auditory tasks.
Open Research Questions
- ? How do virtual reality environments alter mental effort in psychoacoustic sound evaluations?
- ? What vibrotactile features of complex sounds can humans perceive for sensory substitution devices?
- ? Does temporal integration in human auditory cortex follow absolute time or relative structure in speech?
- ? Are current speech perception tests optimal for adults with cochlear implants?
- ? Can Neuro-AI methods replace pure-tone audiometry as the standard for hearing assessment?
Recent Trends
Preprints from the last six months emphasize VR's role in psychoacoustic validity, as in 'Influence of mental effort on sound evaluations in virtual ...', and cross-modal perception in 'Auditory and vibrotactile interactions in perception of timbre ...'. News covers speech sound assessment reforms by U of T researchers and Neuro-AI hearing compensation on 2025-11-25, shifting from traditional metrics like PTA.
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