Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Roy D. Patterson (CNBH, Univ. Cambridge) Stefan Uppenkamp (CNBH, Univ. Cambridge)

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CNBH, PDN, University of Cambridge Roy Patterson Centre for the Neural Basis of Hearing Department of Physiology, Development and Neuroscience University.
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Presentation transcript:

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Roy D. Patterson (CNBH, Univ. Cambridge) Stefan Uppenkamp (CNBH, Univ. Cambridge) Dennis Norris (MRC CBU, Cambridge) William Marslen-Wilson (MRC CBU, Cambridge) Ingrid Johnsrude(MRC CBU, Cambridge) Emma Williams(WBIC, Cambridge) Phonological processing in the auditory system: A new class of stimuli and advances in fMRI techniques ICSLP Beijing 2000:

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. cochlea brain stem thalamus cortex Anatomy of the Auditory Pathway Medial Geniculate Body Inferior Colliculus Cochlear Nucleus

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Five glottal cycles of the /ae/ in past glottal pulse formant ringing 1.0 0

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Auditory image of the /ae/ in ‘ past ’ 1000 Hz 100 Hz 6000 Hz Auditory image of formant ringing Auditory image of glottal pulses

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Three cycles of a damped sinusoid (12-ms period) pulse ringing

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Auditory image of a single damped sinusoid 1000 Hz 100 Hz 6000 Hz pulse ringing

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. regular irregular onset timing irregular regular formant frequencies

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Data from paired comparison experiment

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Auditory cortex

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. receptive phonology primary auditory cortex

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. a dc b Imaging the auditory pathway from cochlea to cortex CN IC LL?/MSO? CN IC MGB LL? MSO? CN

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. L R Contrast of Lively vs Fixed Pitch

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Waveform of the word ‘past’ /p/ /ae/ /s/ /t/ glottal pulses

Centre for the Neural Basis of Hearing, Physiology Dept., Cambridge Univ. Auditory Images of Streams of clicks Regular ICIIrregular ICI

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