Loudness reduction induced by a contralateral tone.
The induced reduction in the loudness (ILR) of a weaker tone caused by a preceding stronger tone was measured with both tones in the same ear (ipsilateral ILR) and also in opposite ears (contralateral ILR). The two tones were always equal in duration and were presented repeatedly over several minutes. When the tone duration was 200 ms, for 24 listeners the loudness reduction averaged 11 dB under ipsilateral ILR and 6 dB under contralateral ILR. When the duration was 5 ms, ILR was 8 dB whether ipsilateral or contralateral. For each duration, ipsilateral and contralateral ILR were strongly correlated (r around 0.80).
Nieder
Bärbel
B
Institute of Hearing, Speech and Language and Department of Speech-Language Pathology & Audiology (106A FR), Northeastern University, Boston, Massachusetts 02115, USA.
Buus
Soren
S
Cazals
Yves
Y
Scharf
Bertram
B
D000161:Acoustic Stimulation; D000222:Adaptation, Physiological; D001309:Auditory Threshold; D001900:Boston; D004007:Dichotic Listening Tests; D005602:France; D006801:Humans; D008144:Loudness Perception / Q000502:physiology*; D010470:Perceptual Masking / Q000502:physiology*; D013997:Time Factors