The Influence of the Envelope Waveform on Binaural Tuning of Neurons in the Inferior Colliculus and Its Relation to Binaural Perception

  • Mathias DietzEmail author
  • Torsten Marquardt
  • David Greenberg
  • David McAlpine
Conference paper
Part of the Advances in Experimental Medicine and Biology book series (volume 787)


Recently, Klein-Hennig et al. (J Acoust Soc Am 129:3856–3872, 2011) suggested a design for envelope waveforms that allows for independent setting of the duration of the four segments of an envelope cycle – pause, attack, sustain, and decay. These authors conducted psychoacoustic experiments to determine the threshold interaural time differences (ITDs) for different waveforms and revealed that a steep attack flank and at least 4 ms of pause duration prior to the attack are optimal for discrimination performance, whilst sustained and decay durations were of only minor influence. The current study tests the sharpness of rate-ITD-functions recorded in the inferior colliculus of guinea pigs in response to a similar set of waveforms, examining their relationship to the psychoacoustic data. Particular focus is applied to temporally asymmetric envelope waveforms: a long 15-ms attack and a short 1.5-ms decay envelope and the temporally inverted envelope with a short 1.5-ms attack and a long 15-ms decay.


Inferior Colliculus Cycle Duration Pause Duration Inferior Colliculus Neuron Attack Duration 
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This work was supported by the MRC. Mathias Dietz was supported by the Alexander von Humboldt-Foundation with a Feodor Lynen Fellowship.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Mathias Dietz
    • 1
    Email author
  • Torsten Marquardt
    • 1
  • David Greenberg
    • 1
  • David McAlpine
    • 1
  1. 1.Ear InstituteUniversity College LondonLondonUK

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