Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloQuantitative analysis of cochlear active mechanisms in tinnitus subjects with normal hearing sensitivity: Time-frequency analysis of transient evoked otoacoustic emissions and contralateral suppression
Anno di pubblicazione2011
Formato-
Autore/iPaglialonga A., Fiocchi S., Del Bo L., Ravazzani P., Tognola G.
Affiliazioni autoriPaglialonga A.: CNR Consiglio Nazionale delle Ricerche, Istituto di Ingegneria Biomedica ISIB, Milano, Italia Fiocchi S.: CNR Consiglio Nazionale delle Ricerche, Istituto di Ingegneria Biomedica ISIB, Milano, Italia Del Bo L.: Fondazione 'Ascolta e Vivi', Milan, Italy Ravazzani P.: CNR Consiglio Nazionale delle Ricerche, Istituto di Ingegneria Biomedica ISIB, Milano, Italia Tognola G.: CNR Consiglio Nazionale delle Ricerche, Istituto di Ingegneria Biomedica ISIB, Milano, Italia
Autori CNR e affiliazioni
  • ALESSIA PAGLIALONGA
  • SERENA FIOCCHI
  • PAOLO GIUSEPPE RAVAZZANI
  • GABRIELLA TOGNOLA
Lingua/e
  • inglese
AbstractObjective: The aim of this study was to analyze the fine structure of transient evoked otoacoustic emissions (TEOAEs) and contralateral suppression effects in tinnitus subjects with normal hearing in order to assess whether a minor cochlear or efferent dysfunction, possibly limited in narrow cochlear regions, might play a role in tinnitus. Methods: TEOAEs were recorded, both in the absence and in the presence of contralateral acoustic stimulation, in 23 tinnitus patients with normal hearing sensitivity and in 31 non-tinnitus control subjects. The broad-band TEOAE recordings were analyzed by using an innovative algorithm and separated into a set of 33 narrow-band frequency components, that represent the different cochlear contributions to the whole TEOAE response. In each frequency component, three different parameters were analyzed and compared between tinnitus and non-tinnitus subjects, i.e., reproducibility, latency, and the suppression effects induced by contralateral acoustic stimulation. Results: Significantly lower reproducibility was observed in the frequency components of the tinnitus subjects compared to the controls, whereas no significant differences in latency and in suppression effects were observed between tinnitus and non-tinnitus ears. Conclusions: The analysis of the fine structure of TEOAEs revealed that the tinnitus subjects involved in this study might, possibly, have a minor dysfunction of the cochlear active mechanisms that resulted in frequency components with lower reproducibility. Conversely, the analysis of suppression effects in the narrow-band frequency components of TEOAE indicated that the subjects involved showed no relevant damage to the efferent regulatory mechanisms that control the cochlear activity, neither through the cochlea as a whole, nor in limited cochlear regions
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da33
Pagine a40
Pagine totali-
RivistaAuris, nasus, larynx
Attiva dal 1974
Editore: SOciety for Promotion of International Otorhinolaryngology. - Tokyo
Paese di pubblicazione: Giappone
Lingua: multilingue
ISSN: 0385-8146
Titolo chiave: Auris, nasus, larynx
Titolo abbreviato: Auris, nasus, larynx
Numero volume della rivista38
Fascicolo della rivista1
DOI10.1016/j.anl.2010.04.006
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000287265300006)
  • Scopus (Codice:2-s2.0-78651305984)
Parole chiaveTinnitus, Otoacoustic emissions, Efferent system, Normal hearing, Wavelet transform, Latency
Link (URL, URI)http://www.sciencedirect.com/science/article/pii/S0385814610001331
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
  • ISIB — Istituto di ingegneria biomedica
Moduli CNR
    Progetti Europei-
    Allegati
    • PDF version of the paper

    Dati storici
    I dati storici non sono modificabili, sono stati ereditati da altri sistemi (es. Gestione Istituti, PUMA, ...) e hanno solo valore storico.
    Rivista ISIAURIS NASUS LARYNX [13548J0]