Interaural intensity and latency difference in the dolphin's auditory system

Binaural hearing mechanisms were measured in dolphins ( Inia geoffrensis) by recording the auditory nerve evoked response from the body surface. The azimuthal position of a sound source at 10–15° from the longitudinal axis elicited interaural intensity dispairty up to 20 dB and interaural latency di...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Neuroscience letters 1991-12, Vol.133 (2), p.295-297
Hauptverfasser:	Popov, V.V., Supin, A.Ya
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic Stimulation Animals Audiory evoked response Auditory Perception - physiology Binaural hearing Biological and medical sciences Dolphin Dolphins - physiology Ear and associated structures. Auditory pathways and centers. Hearing. Vocal organ. Phonation. Sound production. Echolocation Evoked Potentials, Auditory Female Freshwater Functional Laterality Fundamental and applied biological sciences. Psychology Hearing - physiology Inia geoffrensis Time Factors Vertebrates: nervous system and sense organs Vestibulocochlear Nerve - physiology
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Binaural hearing mechanisms were measured in dolphins ( Inia geoffrensis) by recording the auditory nerve evoked response from the body surface. The azimuthal position of a sound source at 10–15° from the longitudinal axis elicited interaural intensity dispairty up to 20 dB and interaural latency difference as large as 250 μs. The latter was many times greater than the acoustical interaural time delay. This latency difference seems to be caused by the intensity disparity. The latency difference seems to be an effective way of coding of intensity disparity.
ISSN:	0304-3940 1872-7972
DOI:	10.1016/0304-3940(91)90592-H