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Clarke S, Da Costa S, Crottaz-Herbette S. Dual Representation of the Auditory Space. Brain Sci 2024; 14:535. [PMID: 38928534 PMCID: PMC11201621 DOI: 10.3390/brainsci14060535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/19/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
Auditory spatial cues contribute to two distinct functions, of which one leads to explicit localization of sound sources and the other provides a location-linked representation of sound objects. Behavioral and imaging studies demonstrated right-hemispheric dominance for explicit sound localization. An early clinical case study documented the dissociation between the explicit sound localizations, which was heavily impaired, and fully preserved use of spatial cues for sound object segregation. The latter involves location-linked encoding of sound objects. We review here evidence pertaining to brain regions involved in location-linked representation of sound objects. Auditory evoked potential (AEP) and functional magnetic resonance imaging (fMRI) studies investigated this aspect by comparing encoding of individual sound objects, which changed their locations or remained stationary. Systematic search identified 1 AEP and 12 fMRI studies. Together with studies of anatomical correlates of impaired of spatial-cue-based sound object segregation after focal brain lesions, the present evidence indicates that the location-linked representation of sound objects involves strongly the left hemisphere and to a lesser degree the right hemisphere. Location-linked encoding of sound objects is present in several early-stage auditory areas and in the specialized temporal voice area. In these regions, emotional valence benefits from location-linked encoding as well.
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Affiliation(s)
- Stephanie Clarke
- Neuropsychology and Neurorehabilitation Service, Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne, Av. Pierre-Decker 5, 1011 Lausanne, Switzerland; (S.D.C.); (S.C.-H.)
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Grisendi T, Clarke S, Da Costa S. Emotional sounds in space: asymmetrical representation within early-stage auditory areas. Front Neurosci 2023; 17:1164334. [PMID: 37274197 PMCID: PMC10235458 DOI: 10.3389/fnins.2023.1164334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 04/07/2023] [Indexed: 06/06/2023] Open
Abstract
Evidence from behavioral studies suggests that the spatial origin of sounds may influence the perception of emotional valence. Using 7T fMRI we have investigated the impact of the categories of sound (vocalizations; non-vocalizations), emotional valence (positive, neutral, negative) and spatial origin (left, center, right) on the encoding in early-stage auditory areas and in the voice area. The combination of these different characteristics resulted in a total of 18 conditions (2 categories x 3 valences x 3 lateralizations), which were presented in a pseudo-randomized order in blocks of 11 different sounds (of the same condition) in 12 distinct runs of 6 min. In addition, two localizers, i.e., tonotopy mapping; human vocalizations, were used to define regions of interest. A three-way repeated measure ANOVA on the BOLD responses revealed bilateral significant effects and interactions in the primary auditory cortex, the lateral early-stage auditory areas, and the voice area. Positive vocalizations presented on the left side yielded greater activity in the ipsilateral and contralateral primary auditory cortex than did neutral or negative vocalizations or any other stimuli at any of the three positions. Right, but not left area L3 responded more strongly to (i) positive vocalizations presented ipsi- or contralaterally than to neutral or negative vocalizations presented at the same positions; and (ii) to neutral than positive or negative non-vocalizations presented contralaterally. Furthermore, comparison with a previous study indicates that spatial cues may render emotional valence more salient within the early-stage auditory areas.
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Affiliation(s)
- Tiffany Grisendi
- Service de Neuropsychologie et de Neuroréhabilitation, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Stephanie Clarke
- Service de Neuropsychologie et de Neuroréhabilitation, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Sandra Da Costa
- Centre d’Imagerie Biomédicale, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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Vannson N, Strelnikov K, James CJ, Deguine O, Barone P, Marx M. Evidence of a functional reorganization in the auditory dorsal stream following unilateral hearing loss. Neuropsychologia 2020; 149:107683. [PMID: 33212140 DOI: 10.1016/j.neuropsychologia.2020.107683] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/16/2020] [Accepted: 11/08/2020] [Indexed: 12/11/2022]
Abstract
Unilateral hearing loss (UHL) generates a disruption of binaural hearing mechanisms, which impairs sound localization and speech understanding in noisy environments. We conducted an original study using fMRI and psychoacoustic assessments to investigate the relationships between the extent of cortical reorganization across the auditory areas for UHL patients, the severity of unilateral hearing loss, and the deficit in binaural abilities. Twenty-eight volunteers (14 UHL patients) were recruited (twenty-two females and six males). The brain imaging analysis demonstrated that UHL induces a shift in aural dominance favoring the better ear, with a cortical reorganization located in the non-primary auditory areas, ipsilateral (same side) to the better ear. This reorganization is correlated not only to the hearing loss severity but also to spatial localization abilities. A regression analysis between brain activity and patient's performance clearly showed that the spatial hearing deficit was linked to a functional alteration of the posterior auditory areas known to process spatial hearing. Altogether, our study reveals that UHL alters the dorsal auditory stream, which is deleterious to spatial hearing.
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Affiliation(s)
- Nicolas Vannson
- Brain and Cognition Research Centre, University of Toulouse Paul Sabatier, Toulouse, France; Brain and Cognition Research Centre, CNRS-UMR, 5549, Toulouse, France; Cochlear France SAS, Toulouse, France.
| | | | | | - Olivier Deguine
- Brain and Cognition Research Centre, University of Toulouse Paul Sabatier, Toulouse, France; Brain and Cognition Research Centre, CNRS-UMR, 5549, Toulouse, France; Service d'Otologie, Otoneurologie et ORL pédiatrique, Hôpital Pierre-Paul Riquet, CHU Toulouse Purpan, France
| | - Pascal Barone
- Brain and Cognition Research Centre, University of Toulouse Paul Sabatier, Toulouse, France; Brain and Cognition Research Centre, CNRS-UMR, 5549, Toulouse, France
| | - Mathieu Marx
- Brain and Cognition Research Centre, University of Toulouse Paul Sabatier, Toulouse, France; Brain and Cognition Research Centre, CNRS-UMR, 5549, Toulouse, France; Service d'Otologie, Otoneurologie et ORL pédiatrique, Hôpital Pierre-Paul Riquet, CHU Toulouse Purpan, France
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Job A, Jaroszynski C, Kavounoudias A, Jaillard A, Delon-Martin C. Functional Connectivity in Chronic Nonbothersome Tinnitus Following Acoustic Trauma: A Seed-Based Resting-State Functional Magnetic Resonance Imaging Study. Brain Connect 2020; 10:279-291. [DOI: 10.1089/brain.2019.0712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Agnès Job
- Institut de Recherche Biomédicale des Armées (IRBA), Brétigny s/Orge, France
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, Grenoble, France
| | - Chloé Jaroszynski
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, Grenoble, France
| | | | | | - Chantal Delon-Martin
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, Grenoble, France
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Grisendi T, Reynaud O, Clarke S, Da Costa S. Processing pathways for emotional vocalizations. Brain Struct Funct 2019; 224:2487-2504. [DOI: 10.1007/s00429-019-01912-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/12/2019] [Indexed: 01/06/2023]
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Tissieres I, Crottaz-Herbette S, Clarke S. Implicit representation of the auditory space: contribution of the left and right hemispheres. Brain Struct Funct 2019; 224:1569-1582. [PMID: 30848352 DOI: 10.1007/s00429-019-01853-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/25/2019] [Indexed: 11/24/2022]
Abstract
Spatial cues contribute to the ability to segregate sound sources and thus facilitate their detection and recognition. This implicit use of spatial cues can be preserved in cases of cortical spatial deafness, suggesting that partially distinct neural networks underlie the explicit sound localization and the implicit use of spatial cues. We addressed this issue by assessing 40 patients, 20 patients with left and 20 patients with right hemispheric damage, for their ability to use auditory spatial cues implicitly in a paradigm of spatial release from masking (SRM) and explicitly in sound localization. The anatomical correlates of their performance were determined with voxel-based lesion-symptom mapping (VLSM). During the SRM task, the target was always presented at the centre, whereas the masker was presented at the centre or at one of the two lateral positions on the right or left side. The SRM effect was absent in some but not all patients; the inability to perceive the target when the masker was at one of the lateral positions correlated with lesions of the left temporo-parieto-frontal cortex or of the right inferior parietal lobule and the underlying white matter. As previously reported, sound localization depended critically on the right parietal and opercular cortex. Thus, explicit and implicit use of spatial cues depends on at least partially distinct neural networks. Our results suggest that the implicit use may rely on the left-dominant position-linked representation of sound objects, which has been demonstrated in previous EEG and fMRI studies.
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Affiliation(s)
- Isabel Tissieres
- Service de neuropsychologie et de neuroréhabilitation, Centre Hospitalier Universitaire Vaudois (CHUV), Université de Lausanne, Lausanne, Switzerland
| | - Sonia Crottaz-Herbette
- Service de neuropsychologie et de neuroréhabilitation, Centre Hospitalier Universitaire Vaudois (CHUV), Université de Lausanne, Lausanne, Switzerland
| | - Stephanie Clarke
- Service de neuropsychologie et de neuroréhabilitation, Centre Hospitalier Universitaire Vaudois (CHUV), Université de Lausanne, Lausanne, Switzerland.
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Abstract
Our ability to make sense of the auditory world results from neural processing that begins in the ear, goes through multiple subcortical areas, and continues in the cortex. The specific contribution of the auditory cortex to this chain of processing is far from understood. Although many of the properties of neurons in the auditory cortex resemble those of subcortical neurons, they show somewhat more complex selectivity for sound features, which is likely to be important for the analysis of natural sounds, such as speech, in real-life listening conditions. Furthermore, recent work has shown that auditory cortical processing is highly context-dependent, integrates auditory inputs with other sensory and motor signals, depends on experience, and is shaped by cognitive demands, such as attention. Thus, in addition to being the locus for more complex sound selectivity, the auditory cortex is increasingly understood to be an integral part of the network of brain regions responsible for prediction, auditory perceptual decision-making, and learning. In this review, we focus on three key areas that are contributing to this understanding: the sound features that are preferentially represented by cortical neurons, the spatial organization of those preferences, and the cognitive roles of the auditory cortex.
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Affiliation(s)
- Andrew J King
- Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, OX1 3PT, UK
| | - Sundeep Teki
- Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, OX1 3PT, UK
| | - Ben D B Willmore
- Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, OX1 3PT, UK
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