Auditory Spatial Deficits in the Early Stage of Ischemic Cerebral Stroke

Przewoźny, Tomasz; Gójska-Grymajło, Anna; Gąsecki, Dariusz

doi:10.1016/j.jstrokecerebrovasdis.2015.05.001

Cited by 8 publications

(5 citation statements)

References 54 publications

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“…There are pieces of evidence of co-morbidity between localization difficulties and non-audio-related diseases. For example, researchers have observed this in people with diabetes 47 or ischemic 48 cerebral stroke. It would be interesting to explore the WebVR platform as a tool to help in the recovery and rehabilitation of such malfunctions.…”

Section: Discussionmentioning

confidence: 95%

Sound localization in web-based 3D environments

Rajguru

Brianza

Memoli

2022

Sci Rep

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Sound delivery is a key aspect of immersivity in virtual and augmented reality (VR/AR), with studies hinting at a correlation between users’ ability to locate sounds around them and the ‘feeling of being there’. This is particularly true for WebVR, a method of delivering immersive experiences through a local web browser that has recently captured attention in multiple industries. In WebVR, audio is the main spatial cue. Designers need to select the correct number of sound sources so that users perceive the location of incoming sound correctly. Information on how users localize sound is essential. Sound localization experiments, so far, have been run only in empty spaces or closed rooms, without clear indications for designers in WebVR. Thus, in this study, we investigate sound localization directly through WebVR. To do so, we designed a traditional empty room for training and a city-like virtual environment for testing purposes. In our paper, we also discuss key design parameters, differences in perception for vertical and horizontal directions, the impact of training, and the role of changing virtual environments. In addition, we introduce and test a new sound cue along with the traditional pink noise sound to measure and explore the impact of different sound cues in different environments. The results demonstrate the potential of exploring sound localization using WebVR, and our study will support the development of virtual experiences in human-computer interaction that may be able to reach a large number of participants using a local web browser.

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Section: Discussionmentioning

confidence: 95%

Sound localization in web-based 3D environments

Rajguru

Brianza

Memoli

2022

Sci Rep

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“…Horizontal localization in patients with cortical and brainstem damage from strokes was also studied by Sonoda et al (2001) and Przewoźny et al (2015aPrzewoźny et al ( ,2015b, who both found accuracy of sound source identification to be reduced in some of their patients. An important consideration in studying stroke patients is the potential for damage to non-auditory areas to result in difficulties with a localization task.…”

Section: Binaural Impairment In Patients With Brain Tumors and Lesionsmentioning

confidence: 99%

Impaired Binaural Hearing in Adults: A Selected Review of the Literature

Gallun

2021

Front. Neurosci.

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Despite over 100 years of study, there are still many fundamental questions about binaural hearing that remain unanswered, including how impairments of binaural function are related to the mechanisms of binaural hearing. This review focuses on a number of studies that are fundamental to understanding what is known about the effects of peripheral hearing loss, aging, traumatic brain injury, strokes, brain tumors, and multiple sclerosis (MS) on binaural function. The literature reviewed makes clear that while each of these conditions has the potential to impair the binaural system, the specific abilities of a given patient cannot be known without performing multiple behavioral and/or neurophysiological measurements of binaural sensitivity. Future work in this area has the potential to bring awareness of binaural dysfunction to patients and clinicians as well as a deeper understanding of the mechanisms of binaural hearing, but it will require the integration of clinical research with animal and computational modeling approaches.

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“…In 2007, Przewoźny et al [42,43], following the example of the experiments by Mills [23], Häusler [8], Zakrzewski [33], and Niewiarowicz et al [41] built a device for MAA measurements using pure-tone stimuli. He used the device to examine patients with hearing disturbances after ischemic cerebral stroke.…”

Section: Sound Localization Testing In Polandmentioning

confidence: 99%

Possibilities of spatial hearing testing in occupational medicine

Przewoźny

2016

Int J Occup Med Environ Health

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Dysfunctions of the organ of hearing are a significant limitation in the performance of occupations that require its full efficiency (vehicle driving, army, police, fire brigades, mining). Hearing impairment is associated with poorer understanding of speech and disturbed sound localization that directly affects the worker's orientation in space and his/her assessment of distance and location of other workers or, even most importantly, of dangerous machines. Testing sound location abilities is not a standard procedure, even in highly specialized audiological examining rooms. It should be pointed out that the ability to localize sounds which are particularly loud, is not directly associated with the condition of the hearing organ, but is rather considered an auditory function of a higher level. Disturbances in sound localization are mainly associated with structural and functional disturbances of the central nervous system and occur also in patients with normal hearing when tested with standard methods. The article presents different theories explaining the phenomenon of sound localization, such as interaural differences in time, interaural differences in sound intensity, monaural spectrum shape and the anatomical and physiological basis of these processes. It also describes methods of measurement of disturbances in sound localization which are used in Poland and around the world, also by the author of this work. The author analyzed accessible reports on sound localization testing in occupational medicine and the possibilities of using such tests in various occupations requiring full fitness of the organ of hearing.

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Auditory Spatial Deficits in the Early Stage of Ischemic Cerebral Stroke

Cited by 8 publications

References 54 publications

Sound localization in web-based 3D environments

Sound localization in web-based 3D environments

Impaired Binaural Hearing in Adults: A Selected Review of the Literature

Possibilities of spatial hearing testing in occupational medicine

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