Effects of unilateral disorder of the brain hemisphere function in man on directional hearing

Altman, J. A.; Balonov, Lev J.; Deglin, V. L.

doi:10.1016/0028-3932(79)90075-7

Cited by 72 publications

(23 citation statements)

References 4 publications

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“…This result is consistent with the commonly accepted view of the functional division between the hemispheres: that is, the language processing specialization of the left hemisphere and the importance of the right hemisphere in analyzing spatial and spatiotemporal information [Gazzaniga, 1998]. Previous studies [Palomäki et al, 2002;Altman et al, 1979] emphasized the importance of the right hemisphere, as suggested by the larger amplitude of the N1m responses (in the right hemisphere). The asymmetry between hemispheres, in favor of the right one, is confirmed by the MEG data indicating a stronger source intensity of the right N1m when compared to the left N1m.…”

Section: Discussionsupporting

confidence: 93%

Human brain activation during passive listening to sounds from different locations: An fMRI and MEG study

Brunetti

Belardinelli

Caulo

et al. 2005

Human Brain Mapping

116

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Recent animal and human studies indicate the existence of a neural pathway for sound localization, which is similar to the "where" pathway of the visual system and distinct from the sound identification pathway. This study sought to highlight this pathway using a passive listening protocol. We employed fMRI to study cortical areas, activated during the processing of sounds coming from different locations, and MEG to disclose the temporal dynamics of these areas. In addition, the hypothesis of different activation levels in the right and in the left hemispheres, due to hemispheric specialization of the human brain, was investigated. The fMRI results indicate that the processing of sound, coming from different locations, activates a complex neuronal circuit, similar to the sound localization system described in monkeys known as the auditory "where" pathway. This system includes Heschl's gyrus, the superior temporal gyrus, the supramarginal gyrus, and the inferior and middle frontal lobe. The MEG analysis allowed assessment of the timing of this circuit: the activation of Heschl's gyrus was observed 139 ms after the auditory stimulus, the peak latency of the source located in the superior temporal gyrus was at 156 ms, and the inferior parietal lobule and the supramarginal gyrus peaked at 162 ms. Both hemispheres were found to be involved in the processing of sounds coming from different locations, but a stronger activation was observed in the right hemisphere.

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Section: Discussionsupporting

confidence: 93%

Human brain activation during passive listening to sounds from different locations: An fMRI and MEG study

Brunetti

Belardinelli

Caulo

et al. 2005

Human Brain Mapping

116

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“…The lateral positions were created by delaying the left or right channel by 0.3 ms or 1 ms. Sixty items, 12 in each position, were presented in pseudorandom order. The patients were asked to indicate the perceived position on their head with their ipsilesional hand (same procedure as Altman et al 1979;Bisiach et al 1984). A graduated half-circle fixed on the headphones was used to determine the angular value of the position (from 0°at the vertex to 90°at each ear).…”

Section: Recognition Of Environmental Soundsmentioning

confidence: 99%

Sound recognition and localization in man: specialized cortical networks and effects of acute circumscribed lesions

Adriani¹,

Maeder²,

Meuli³

et al. 2003

Experimental Brain Research

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Functional imaging studies have shown that information relevant to sound recognition and sound localization are processed in anatomically distinct cortical networks. We have investigated the functional organization of these specialized networks by evaluating acute effects of circumscribed hemispheric lesions. Thirty patients with a primary unilateral hemispheric lesion, 15 with right-hemispheric damage (RHD) and 15 with lefthemispheric damage (LHD), were evaluated for their capacity to recognise environmental sounds, to localize sounds in space and to perceive sound motion. One patient with RHD and 2 with LHD had a selective deficit in sound recognition; 3 with RHD a selective deficit in sound localization; 2 with LHD a selective deficit in sound motion perception; 4 with RHD and 3 with LHD a combined deficit of sound localization and motion perception; 2 with RHD and 1 with LHD a combined deficit of sound recognition and motion perception; and 1 with LHD a combined deficit of sound recognition, localization and motion perception. Five patients with RHD and 6 with LHD had normal performance in all three domains. Deficient performance in sound recognition, sound localization and/or sound motion perception was always associated with a lesion that involved the shared auditory structures and the specialized What and/or Where networks, while normal performance was associated with lesions within or outside these territories. Thus, damage to regions known to be involved in auditory processing in normal subjects is necessary, but not sufficient for a deficit to occur. Lesions of a specialized network was not always associated with the corresponding deficit. Conversely, specific deficits tended not be associated predominantly with lesions of the corresponding network; e.g. deficits in auditory spatial tasks were observed in patients whose lesions involved to a larger extent the shared auditory structures and the specialized What network than the specialized Where network, and deficits in sound recognition in patients whose lesions involved mostly the shared auditory structures and to a varying degree the specialized What network. The human auditory cortex consists of functionally defined auditory areas, whose intrinsic organization is currently not understood. In particular, areas involved in the What and Where pathways can be conceived as: (1) specialized regions, in which lesions cause dysfunction limited to the damaged part; observed deficits should be then related to the specialization of the damaged region and their magnitude to the extent of the damage; or (2) specialized networks, in which lesions cause dysfunction that may spread over the two specialized networks; observed deficits may then not be related to the damaged region and their magnitude not proportional to the extent of the damage. Our results support strongly the network hypothesis.

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“…For sound motion the perception of the direction of the moving sound was assessed. Auditory spatial abilities were assessed using sound lateralisation paradigms with ITD (as in Adriani, Bellmann et al, 2003;Adriani, Maeder et al, 2003;Altman, et al, 1979;Clarke, Adriani, & Bellmann, 1998;Clarke et al, 2000;Cusack, Carlyon, & Robertson, 2001;Clarke, et al, 2002;Griffiths et al, 1996;Rey et al, 2007;Spierer, Bellmann-Thiran et al, 2009;Spierer, Meulî, & Clarke, 2007;Tanaka, Hachisuka, & Ogata, 1999;Thiran & Clarke, 2003) or IID (as in Bisiach, Rusconi, Peretti, & Vallar, 1994;Spierer, Bellmann-Thiran et al, 2009;Sterzi, Piacentini, Polimeni, Liverani, & Bisiach, 1996). For each test, the volume was set at a level judged comfortable by the subject (75-85 dB SPL; CESV A SC-L; www.cesva.com).…”

Section: Methodsmentioning

confidence: 99%

“…Sixty twosecond broadband "bumblebee" sounds (20- Altman et al, 1979;Bisiach, Cornacchia, Sterzi, & Vallat", 1984). Normative data were obtained from 60 normal subjects (30 male and 30 female, aged between 20 and 85 years; 20 subjects aged 20-34 years; 20 aged 35-49 years; 20 aged 50 or more years; overall mean age= 42.5 years, SD = 14.3 years); none of the measures reported below differed significantly between age groups Bellmann, Meuli, & Clarke, 2001;Spierer, Bellmann-Thiran, et al, 2009).…”

Section: Explicit Use Of Itd Eues: Sound Lateralisationmentioning

confidence: 99%

Auditory spatial deficits following hemispheric lesions: Dissociation of explicit and implicit processing

Duffour-Nikolov¹,

Tardif²,

Maeder³

et al. 2012

Neuropsychological Rehabilitation

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Effects of unilateral disorder of the brain hemisphere function in man on directional hearing

Cited by 72 publications

References 4 publications

Human brain activation during passive listening to sounds from different locations: An fMRI and MEG study

Human brain activation during passive listening to sounds from different locations: An fMRI and MEG study

Sound recognition and localization in man: specialized cortical networks and effects of acute circumscribed lesions

Auditory spatial deficits following hemispheric lesions: Dissociation of explicit and implicit processing

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