Sensorimotor learning of sound localization from an auditory evoked behavior

Bernard, Mathieu; Pirim, Patrick; Cheveigné, Alain de; Gas, Bruno

doi:10.1109/icra.2012.6224972

Cited by 13 publications

(14 citation statements)

References 25 publications

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“…One can also mention [109] -who proposed a motion planning system whose objective is to maximize the effectiveness of a speech recognition module-, or [110,111] -where the sound localization problem is rewritten in terms of a sensorimotor approach, with experiments made on the famous Psikharpax rat robot from the European FP7-ICT-IP ICEA (Integrating Cognition Emotion and Autonomy) project-. Stochastic filtering has also emerged as an ideal tool for sound localization and tracking during robot movement [112].…”

Section: Resultsmentioning

confidence: 99%

A survey on sound source localization in robotics: From binaural to array processing methods

Argentieri

Danès

Souères

2015

Computer Speech & Language

133

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This paper attempts to provide a state-of-the-art of sound source localization in Robotics. Noticeably, this context raises original constraints-e.g. embeddability, real time, broadband environments, noise and reverberation-which are seldom simultaneously taken into account in Acoustics or Signal Processing. A comprehensive review is proposed of recent robotics achievements, be they binaural or rooted in Array Processing techniques. The connections are highlighted with the underlying theory as well as with elements of physiology and neurology of human hearing.

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Section: Resultsmentioning

confidence: 99%

A survey on sound source localization in robotics: From binaural to array processing methods

Argentieri

Danès

Souères

2015

Computer Speech & Language

133

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“…Recent computational modeling of the development of auditory spatial representations (Aytekin et al 2008;Bernard et al, 2012) has shown that an ordered representation of space can be established through unsupervised sensory-motor learning. Put simply, a representation can be learnt by analyzing the auditory consequences of moving the system's directional sensors by a known amount.…”

Section: Discussionmentioning

confidence: 99%

Accommodating to new ears: The effects of sensory and sensory-motor feedback

Carlile

Balachandar

Kelly

2014

The Journal of the Acoustical Society of America

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Changing the shape of the outer ear using small in-ear molds degrades sound localization performance consistent with the distortion of monaural spectral cues to location. It has been shown recently that adult listeners re-calibrate to these new spectral cues for locations both inside and outside the visual field. This raises the question as to the teacher signal for this remarkable functional plasticity. Furthermore, large individual differences in the extent and rate of accommodation suggests a number of factors may be driving this process. A training paradigm exploiting multi-modal and sensory-motor feedback during accommodation was examined to determine whether it might accelerate this process. So as to standardize the modification of the spectral cues, molds filling 40% of the volume of each outer ear were custom made for each subject. Daily training sessions for about an hour, involving repetitive auditory stimuli and exploratory behavior by the subject, significantly improved the extent of accommodation measured by both front-back confusions and polar angle localization errors, with some improvement in the rate of accommodation demonstrated by front-back confusion errors. This work has implications for both the process by which a coherent representation of auditory space is maintained and for accommodative training for hearing aid wearers.

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“…6). From a computational perspective, some recent models have been developed whereby auditory spatial representations can be created by unsupervised sensorimotor learning where receiver motion is integrated with acoustic information (Aytekin et al 2008;Bernard et al 2012). Whether the motion signal is of motor (efference copy) or sensory origin (proprioception) is not known.…”

Section: Accommodation To the New Spectral Cuesmentioning

confidence: 99%

Relearning Auditory Spectral Cues for Locations Inside and Outside the Visual Field

Carlile

Blackman

2013

JARO

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Previous research has demonstrated that, over a period of weeks, the auditory system accommodates to changes in the monaural spectral cues for sound locations within the frontal region of space. We were interested to determine if similar accommodation could occur for locations in the posterior regions of space, i.e. in the absence of contemporaneous visual information that indicates any mismatch between the perceived and actual location of a sound source. To distort the normal spectral cues to sound location, eight listeners wore small moulds in each ear. HRTF recordings confirmed that while the moulds substantially altered the monaural spectral cues, sufficient residual cues were retained to provide a basis for relearning. Compared to control measures, sound localization performance initially decreased significantly, with a sevenfold increase in front-back confusions and elevation errors more than doubled. Subjects wore the moulds continuously for a period of up to 60 days (median 38 days), over which time performance improved but remained significantly poorer than control levels. Sound localization performance for frontal locations (audio-visual field) was compared with that for posterior space (audio-only field), and there was no significant difference between regions in either the extent or rate of accommodation. This suggests a common mechanism for both regions of space that does not rely on contemporaneous visual information as a teacher signal for recalibration of the auditory system to modified spectral cues.

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Sensorimotor learning of sound localization from an auditory evoked behavior

Cited by 13 publications

References 25 publications

A survey on sound source localization in robotics: From binaural to array processing methods

A survey on sound source localization in robotics: From binaural to array processing methods

Accommodating to new ears: The effects of sensory and sensory-motor feedback

Relearning Auditory Spectral Cues for Locations Inside and Outside the Visual Field

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