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Tag: Friederici

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Editorial Notes Events Posters Publications

Neu­ro­science 2012 Posters and Talks

Dear friends and col­leagues, SfN Participants!

Please go and check out our posters in New Orleans this year.
It’s all hap­pen­ing in the Mon­day (15 Octo­ber) AM posters ses­sion, plus a bit of Tues­day AM, and one talk on mon­day AM as well. Thanks for your support!

TALK MONDAY AM, 10:30
321.11 — Selec­tive atten­tion to audi­to­ry tem­po­ral fea­tures sep­a­rates domain-gen­er­al from tim­ing-spe­cif­ic func­tions
*M. J. HENRY, J. OBLESER;
(in the Nanosym­po­sium 321. “Tim­ing and Tem­po­ral Pro­cess­ing I”)

MONDAY AM POSTER SESSION
366.05/FF7 — Alpha-band activ­i­ty reflects trade-off between tem­po­ral pre­pared­ness and cog­ni­tive load for speech in noise
*A. WILSCH, M. J. HENRY, B. MAESS, J. OBLESER

368.10/II3 — Cor­ti­cal dynam­ics and sub­cor­ti­cal mor­phol­o­gy pre­dict rapid adap­ta­tion to chang­ing spec­tro-tem­po­ral cues
*M. SCHARINGER, M. J. HENRY, J. ERB, J. OBLESER

368.14/II7 — Per­cep­tu­al adap­ta­tion to degrad­ed speech: Tun­ing in cor­ti­cal and sub­cor­ti­cal brain struc­tures
*J. ERB, M. J. HENRY1, F. EISNER, J. OBLESER

368.21/II14 — Slow fre­quen­cy mod­u­la­tion entrains neur­al delta oscil­la­tions and deter­mines human lis­ten­ing behav­ior
M. J. HENRY, *J. OBLESER

TUESDAY AM POSTER SESSION
595.14/CCC5 — With­in-sub­ject alpha pow­er is neg­a­tive­ly cor­re­lat­ed with sub­jec­tive intel­li­gi­bil­i­ty — A study of degrad­ed word com­pre­hen­sion in MEG.
*C. MCGETTIGAN, S. KOTZ, B. MAESS, S. SCOTT, J. OBLESER

595.23/CCC14 — Func­tion­al lat­er­al­iza­tion of the infe­ri­or frontal gyrus dur­ing sen­tence pro­cess­ing: The influ­ence of struc­tur­al lat­er­al­iza­tion and hand­ed­ness
*L. MEYER, J. OBLESER, A. D. FRIEDERICI

Categories
Auditory Neuroscience Auditory Perception fMRI Linguistics Papers Publications Speech

New paper out: “Upstream del­e­ga­tion” for pro­cess­ing of com­plex syn­tax under degrad­ed acoustics

A new paper is about to appear in Neu­roim­age on the inter­ac­tion of syn­tac­tic com­plex­i­ty and acoustic degradation.

It is writ­ten by myself, PhD stu­dent Lars Mey­er, and Angela Friederi­ci. In a way, the paper brings togeth­er one of Angela’s main research ques­tions (which brain cir­cuits medi­ate the pro­cess­ing of syn­tax?) with a long-stand­ing inter­est of mine, that is, how do adverse lis­ten­ing sit­u­a­tions affect the com­pre­hen­sion of speech.

The paper is entitled

Dynam­ic assign­ment of neur­al resources in audi­to­ry com­pre­hen­sion of com­plex sentences

The paper first estab­lish­es that acoustic vari­ants of increas­ing­ly com­plex sen­tences essen­tial­ly behave like writ­ten ver­sions of these sentences.
The data then neat­ly show that pro­cess­ing chal­leng­ing (but legal) syn­tax under var­i­ous lev­els of degra­da­tion has a very dif­fer­ent effect on the neur­al cir­cuits involved than prof­it­ing from seman­tics: While the lat­ter has been shown pre­vi­ous­ly to involve more wide­spread, het­ero­modal brain areas, the dou­ble demand of increas­ing­ly com­plex syn­tax and an increas­ing­ly degrad­ed speech sig­nal (from which the com­plex syn­tax has to be parsed) elic­it an “upstream” shift of acti­va­tion back to less abstract pro­cess­ing areas in the supe­ri­or tem­po­ral and prefrontal/frontal cortex.

We ten­ta­tive­ly have termed this process “upstream del­e­ga­tion”. We have also tried and estab­lished a slight­ly unusu­al method to do jus­tice to the fMRI acti­va­tion data: We have includ­ed all z‑scores gath­ered along cer­tain spa­tial dimen­sions, irre­spec­tive of whether they were sub- or suprathresh­old, and have treat­ed them as dis­tri­b­u­tions. Check it out and let us know what you think.

Ref­er­ences

  • Obleser J, Mey­er L, Friederi­ci AD. Dynam­ic assign­ment of neur­al resources in audi­to­ry com­pre­hen­sion of com­plex sen­tences. Neu­roim­age. 2011 Jun 15;56(4):2310–20. PMID: 21421059. [Open with Read]