Stimulus-dependent central processing of auditory stimuli: a PET study.
Positron emission tomography (PET) was used to investigate the neural systems involved in the central processing of different auditory stimuli. Noise, pure tone and pure-tone pulses, music and speech were presented monaurally. 0-15-water PET scans were obtained in relation to these stimulations pres...
| Publicado en: | Scandinavian Audiology Vol. 28; no. 3; pp. 161 - 170 |
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| Autores principales: | , , , , , , |
| Formato: | diagnostic images research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Sep99
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=107101960&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107101960 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01050397 BD3 jtl: Scandinavian Audiology issn: 01050397 maglogo: N pubinfo: dt: Sep99 vid: 28 iid: 3 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 107101960 2000028614 10.1080/010503999424734 NLM10489865 107101960 ppf: 161 ppct: 9 formats: fmt: @attributes: type: P tig: atl: Stimulus-dependent central processing of auditory stimuli: a PET study. aug: au: Mirz F Ovesen T Ishizu K Johannsen P Madsen S Gjedde A Pedersen CB affil: Department of Otorhinolaryngology, Aarhus University Hospital, Norrebrogade 44, 8000 Aarhus C, Denmark. E-mail: mirz@dadlnet.dk sug: subj: Auditory Perception Tomography, Emission-Computed Utilization Cerebral Cortex Physiology Funding Source Descriptive Research Female Male Adult Middle Age Audiometry Cerebrovascular Circulation T-Tests Acoustic Stimulation Hearing Human Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: Positron emission tomography (PET) was used to investigate the neural systems involved in the central processing of different auditory stimuli. Noise, pure tone and pure-tone pulses, music and speech were presented monaurally. 0-15-water PET scans were obtained in relation to these stimulations presented to five normal hearing and healthy subjects. All stimuli were related to a basic scan in silence. Processing of simple auditory stimuli, such as pure tones and noise, predominantly activate the left transverse temporal gyrus (Brodmann area [BA] 41), whereas sounds with discontinued acoustic patterns, such as pure-tone pulse trains, activated parts of the auditory association area in the superior temporal gyri (BA 42) in both hemispheres. Moreover, sounds with complex spectral, intensity, and temporal structures (words, speech, music) activated spatially even more extensive associative auditory areas in both hemispheres (BA 21, 22). PET has revealed a remarkable potential to investigate early central auditory processing, and has provided evidence of the coexistence of functionally linked, but individually active parallel and serial auditory networks. pubtype: Academic Journal doctype: diagnostic images research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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