2. Kai Alter Newcastle Auditory Group Segmentation in speech: On the processing of boundaries and accents

3. In this talk… basic mechanisms of sound segmentation prosodic boundaries segmentation in dialogues other boundaries

4. Scientific background Synamps2 system and Neuroscan QuickCap

5. basic mechanisms of sound segmentation prosodic boundaries Intonational boundaries are essential to understanding speech IPh = Intonational phrase boundary (A)..............]IPh................................. ] (B)................................]IPh....... ] When it rains] IPh cats and dogs stay at home When it rains cats and dogs] IPh stay at home

6. Grand average over 48 sentences per condition / 48 adults; German materials FZ CZ PZ F8 FC4 CP6 O2 F7 FC3 CP5 O1 Steinhauer, Alter & Friederici, Nature Neuroscience. 1999 Processing Intonational boundaries - the Closure Positive Shift (CPS) (A).................]IPh..................... ] (B)........]IPh.................]IPh......... ] basic mechanisms of sound segmentation prosodic boundaries

7. Intonational boundaries are essential to understanding speech IPh boundary CPS IPh boundary CPS acoustic input phonological encoding neural response basic mechanisms of sound segmentation prosodic boundaries

8. in relative clauses (Isel, Alter & Friederici. Journal of Cognitive Neuroscience, 2005) in parenthetical constructions (Toepel & Alter. Speech Prosody, 2002) in hummed speech (Pannekamp et al., Journal of Cognitive Neuroscience, 2005) (fMRI: Ischebeck, Friederici & Alter. Cerebral Cortex 2008) in music (Knoesche et al., Journal of Human Brain Mapping, 2005) CPS independent from prosodic cues (Grube, Griffiths & Alter, in preparation) CPS as a brain marker for sound segmentation basic mechanisms of sound segmentation prosodic boundaries

9. Where accentuation intervenes... Influence of context (focus) Peter promises to SUPPORT ANNAand... Please note: accents are ‚focus accents‘ induced by a preceding wh-question German materials with verb-final and focus in-situ patterns what?whom? accent basic mechanisms of sound segmentation segmentation in dialogues

10. CPS as a brain marker for segmentation Please note: if presented in isolation, the CPS ‚moves‘ to the position of the IPh Alter, K. in: Lacheret, A. & J. Francois (eds.). Fonctions et moyens d'expression de la focalisation. 2004 focus accent CPS acoustic input phonological encoding neural response basic mechanisms of sound segmentation segmentation in dialogues

11. The CPS is a useful tool to investigate sequencing in sound processing Summary

12. Thank you for your attention