supplementary online information for modelling motor pattern generation in the development of infant...
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Supplementary online information for
Modelling Motor Pattern Generation in the Development of Infant Speech
Paper for the eighth International Seminar on Speech Production (ISSP'08) Strasbourg, France, 8th to the 12th of December, 2008
Ian Spencer1 Howard & Piers Messum2
1Biological & Machine Learning Lab,
Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, England,
2Centre for Human Communication, University College London, UK
E-mail: [email protected], [email protected]
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Important signal flow paths flow
Sensory Input
Motor ActionOutput
A) Proprioception
B) External sensory consequences
Action/Reaction
from Mother
C) Communicationpaths D) Reformulations
Explore Reward
Infant model
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Reward and effort
Play Sound
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Well synchronized breathing
Play Sound
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Poorly synchronized breathing
Play Sound
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More examplesPlay SoundPlay Sound
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Segmentation using acoustic powerPlay Sound
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Learning multi-syllable words
Caregiveroutput
As recognizedby infant
Best pronunciationby infant
bar bar
a b
b oo
Utterance
• The caregiver produces several 2-syllable sounds• These are then segmented and recognized by the infant model • The infant then pronounces them in his voice• The caregiver selects his best productions