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UID:20251120T133406EST-5899ZTSNEK@132.216.98.100
DTSTAMP:20251120T183406Z
DESCRIPTION:Gabriella Mussachia\, Ph.D.  Dr. Musacchia is a Post-Doctoral F
 ellow at the Infancy Studies Laboratory\, Center for Molecular and Behavio
 ral Neuroscience\, Rutgers University\, Newark\, NJ.  Her research focuses
  on how the  brain makes sense of the complex world around us in order to 
 understand language and music.     Abstract:  Both speech and music percep
 tion rely on pitch transitions whose  production is controlled over time. 
 In everyday listening\, the pitch and  rhythm of speech and music blend to
 gether to create a seamless  perception of pitch fluctuations organized in
  time. The organization of  pitch in rhythm aids cognitive processing in b
 oth domains. An extensive  body of research has shown that music training 
 leads to brain plasticity  such as enhanced perception and processing of p
 itch and rhythm\, as well  as spoken and written language. However\, the n
 euronal mechanisms of  pitch and rhythm are often the investigated separat
 ely and the  interrelationship between tone and rhythm processing is only 
 beginning  to be explored.  In this study\, we used EEG and ERP time-frequ
 ency analysis methods\,  developed in animal and human adult experiments\,
  to evaluate the  contribution of cortical oscillations to typical infant 
 auditory  development.  By comparing the frequency composition of neural r
 esponses  to auditory tone sequences\, we are able to disentangle the temp
 oral  dynamics of pitch and rhythm representation.   The results of this  
 investigation suggest that there may be specific mechanisms for  simultane
 ous processing of complex auditory representation.  We also advance the hy
 pothesis that the peripheral pathways carrying  largely segregated represe
 ntations of tonal “content” (e.g. pitch) and  “context” (e.g. rhythm) feed
  into separate thalamocortical systems that  could integrate tone content 
 within rhythm context in auditory cortex.  This hypothesis provides a fram
 ework for generating testable predictions  about the early stages of music
  processing in the human brain\, and may  also be useful for understanding
  how the neuronal “context” of rhythm  can facilitate music-related plasti
 city. Because the thalamocortical  circuit is shared in both speech and mu
 sic processing\, our data and  hypothesis also provide a substantive expla
 nation of why music lends  itself to plasticity in speech encoding mechani
 sms.
DTSTART:20120924T200000Z
DTEND:20120924T210000Z
LOCATION:de Grandpré auditorium\, Montreal Neurological Institute\, CA\, QC
 \, Montreal\, H3A 2B4\, 3801 rue University
SUMMARY:Auditory plasticity and development: Disentangling the temporal dyn
 amics of complex representation 
URL:/channels-contribute/channels/event/auditory-plast
 icity-and-development-disentangling-temporal-dynamics-complex-represent
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