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Ageing Attention Auditory Cortex Auditory Neuroscience Editorial Notes EEG / MEG Executive Functions Neural Phase Posters

Come see us @ Neu­ro­science 2017 in DC

Will be at the Soci­ety for Neu­ro­science Meet­ing next week in DC? Come find us in the Wednes­day after­noon ses­sion with a bunch of (we think) very cool atten­tion-relat­ed posters (Poster boards UU42UU46):

804.06. Audi­to­ry atten­tion and pre­dic­tive pro­cess­ing co-mod­u­late speech com­pre­hen­sion in mid­dle-aged adults
*S. TUNE, M. WÖSTMANN, J. OBLESER;

804.05. Implic­it tem­po­ral pre­dictabil­i­ty enhances audi­to­ry pitch-dis­crim­i­na­tion sensitivity
*S. K. HERBST, M. PLÖCHL, A. HERRMANN, J. OBLESER;

804.09. Are visu­al and audi­to­ry detec­tion per­for­mance dri­ven by a supramodal atten­tion­al rhythm?
*M. PLOECHL, S. KASTNER, I. C. FIEBELKORN, J. OBLESER;

804.08. Spa­tio-tem­po­ral expec­ta­tions exert dif­fer­en­tial effects on visu­al and audi­to­ry discrimination
*A. WILSCH, J. OBLESER, C. E. SCHROEDER, C. S. HERRMANN, S. HAEGENS

804.07. Tran­scra­nial 10-Hz stim­u­la­tion but also eye clo­sure mod­u­late audi­to­ry attention
*M. WÖSTMANN, L.-M. SCHMITT, J. VOSSKUHL, C. S. HERRMANN, J. OBLESER

Categories
EEG / MEG Neural Oscillations Posters Publications

Herb­st & Lan­dau on Rhythms for cog­ni­tion: the case of tem­po­ral processing

In an invit­ed review in Cur­rent Opin­ion in Behav­ioral Sci­ences, Sophie Herb­st and Ayelet Lan­dau (The Hebrew Uni­ver­si­ty of Jerusalem) dis­cuss the role of spon­ta­neous and stim­u­lus-evoked neur­al oscil­la­tions in tem­po­ral processing.

Now avail­able online:

http://authors.elsevier.com/a/1SZuN8MqMiN8Ar

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Editorial Notes Events Posters Publications

See you at SfN

Soci­ety for Neu­ro­science 2015 is com­ing up. Please come and check out our stuff! Also, Jonas will be chair­ing the sym­po­sium on cor­ti­cal encod­ing of com­plex sound (with talks by for­mer PhD stu­dent Julia Erb and for­mer Post­doc Björn Her­rmann) on tues­day morning.

Posters by the Obleser lab:

Tues­day morn­ing Session:
FIEDLER et al., In-ear-EEG …, Board M46
WILSCH et al., Cor­ti­ca pat­terns of alpha pow­er …, Board Y1
Wednes­day after­noon Session:
LIM et al., Evoked respons­es and alpha oscil­la­tions …, Board BB37

See you there.

 

Categories
Auditory Perception Auditory Working Memory Events fMRI Neural Oscillations Neural Phase Posters

Come and find us at CNS 2014 in Boston this weekend

The Obleser lab will be pre­sent­ing four posters at this year’s Annu­al Meet­ing of the Cog­ni­tive Neu­ro­science Soci­ety in Boston.

If you hap­pen to be there, come check us out!

A125Hemo­dy­nam­ic sig­na­tures of (mis-)perceiving tem­po­ral change
Her­rmann, Bjoern

C63Tem­po­ral pre­dictabil­i­ty atten­u­ates decay in sen­so­ry memory
Wilsch, Anna

D54Stim­u­lus dis­crim­inabil­i­ty and pre­dic­tive­ness mod­u­late alpha oscil­la­tions in a per­cep­tu­al­ly demand­ing mem­o­ry task
Wöst­mann, Malte

D130Slow acoustic fluc­tu­a­tions entrain low-fre­quen­cy neur­al oscil­la­tions and deter­mine psy­choa­coustic performance
Hen­ry, Molly

Categories
EEG / MEG Neural Oscillations Perception Posters Publications

Col­in Cher­ry Award 2014 goes to Malte Wöstmann

On this years SPIN (Speech in Noise) work­shop in Mar­seille, our very own Malte Wöst­mann received the Col­in Cher­ry  Best Poster Award, elect­ed by work­shop attendees.

Judge for your­self and check out the Poster (PDF) here

Colin Cherry Award 2014 goes to Malte Wöstmann
Col­in Cher­ry Award 2014 goes to Malte Wöstmann
Categories
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 Working Memory Degraded Acoustics EEG / MEG Events Executive Functions Neural Oscillations Posters Publications

Fur­ther posters at SFN / Neu­ro­science 2011

In addi­tion to the excit­ing con­so­nan­tal mis­match neg­a­tiv­i­ty work Math­ias and Alexan­dra will be show­ing (TUESDAY AM ses­sion, posters UU10 and UU11), we will have the fol­low­ing posters this year. Come by!

Chris Petkov and I are show­ing our brand new data in the TUESDAY PM ses­sion, poster LL14.

I myself will be pre­sent­ing in the WEDNESDAY AM ses­sion, XX15 – more alpha oscil­la­tions in work­ing mem­o­ry under speech degradation.

Final­ly, I also have the plea­sure to be a co-author on Sarah Jessen’s, who is show­ing très cool mul­ti­modal inte­gra­tion data on voic­es and bod­ies under noisy con­di­tions in the WEDNESDAY PM ses­sion, XX15.

Categories
Auditory Perception EEG / MEG Events Evoked Activity Posters Publications Speech

Poster Pre­sen­ta­tions at SFN

There will be two poster pre­sen­ta­tions at SFN in Wash­ing­ton, DC., on the top­ic of audi­to­ry pre­dic­tions in speech per­cep­tion. The first poster, authored by Alexan­dra Ben­dix­en, Math­ias Scharinger, and Jonas Obleser, sum­ma­rizes as follows:

Speech sig­nals are often com­pro­mised by dis­rup­tions orig­i­nat­ing from exter­nal (e.g., mask­ing noise) or inter­nal (e.g., slug­gish artic­u­la­tion) sources. Speech com­pre­hen­sion thus entails detect­ing and replac­ing miss­ing infor­ma­tion based on pre­dic­tive and restora­tive mech­a­nisms. The nature of the under­ly­ing neur­al mech­a­nisms is not yet well under­stood. In the present study, we inves­ti­gat­ed the detec­tion of miss­ing infor­ma­tion by occa­sion­al­ly omit­ting the final con­so­nants of the Ger­man words “Lachs” (salmon) or “Latz” (bib), result­ing in the syl­la­ble “La” (no seman­tic mean­ing). In three dif­fer­ent con­di­tions, stim­u­lus pre­sen­ta­tion was set up so that sub­jects expect­ed only the word “Lachs” (con­di­tion 1), only the word “Latz” (con­di­tion 2), or the words “Lachs” or “Latz” with equal prob­a­bil­i­ty (con­di­tion 3). Thus essen­tial­ly, the final seg­ment was pre­dictable in con­di­tions 1 and 2, but unpre­dictable in con­di­tion 3. Stim­uli were pre­sent­ed out­side the focus of atten­tion while sub­jects were watch­ing a silent video. Brain respons­es were mea­sured with mul­ti-chan­nel elec­troen­cephalo­gram (EEG) record­ings. In all con­di­tions, an omis­sion response was elicit­ed from 125 to 165 ms after the expect­ed onset of the final seg­ment. The omis­sion response shared char­ac­ter­is­tics of the omis­sion mis­match neg­a­tiv­i­ty (MMN) with gen­er­a­tors in audi­to­ry cor­ti­cal areas. Crit­i­cal­ly, the omis­sion response was enhanced in ampli­tude in the two pre­dictable con­di­tions (1, 2) com­pared to the unpre­dictable con­di­tion (3). Vio­lat­ing a strong pre­dic­tion thus elicit­ed a more pro­nounced omis­sion response. Con­sis­tent with a pre­dic­tive cod­ing account, the pro­cess­ing of miss­ing lin­guis­tic infor­ma­tion appears to be mod­u­lat­ed by pre­dic­tive context.

The sec­ond poster looks at sim­i­lar mate­r­i­al, but con­trasts coro­nal [t] with dor­sal [k], yield­ing inter­est­ing asym­me­tries in MMN responses:

Research in audi­to­ry neu­ro­science has lead to a bet­ter under­stand­ing of the neur­al bases of speech per­cep­tion, but the rep­re­sen­ta­tion­al nature of speech sounds with­in words is still a mat­ter of debate. Elec­tro­phys­i­o­log­i­cal research on sin­gle speech sounds pro­vid­ed evi­dence for abstract rep­re­sen­ta­tion­al units that com­prise infor­ma­tion about both acoustic struc­ture and artic­u­la­tor con­fig­u­ra­tion (Phillips et al., 2000), there­by refer­ring to phono­log­i­cal cat­e­gories. Here, we test the pro­cess­ing of word-final con­so­nants dif­fer­ing in their place of artic­u­la­tion (coro­nal [ts] vs. dor­sal [ks]) and acoustic struc­ture, as seen in the time-vary­ing for­mant (res­o­nance) fre­quen­cies. The respec­tive con­so­nants dis­tin­guish between the Ger­man nouns Latz (bib) and Lachs (salmon), record­ed from a female native speak­er. Ini­tial con­so­nant-vow­el sequences were aver­aged across the two nouns in order to avoid coar­tic­u­la­to­ry cues before the release of the con­so­nants. Latz and Lachs served as stan­dard and deviant in a pas­sive odd­ball par­a­digm, while the EEG from 20 par­tic­i­pants was record­ed. The change from stan­dard [ts] to deviant [ks] and vice ver­sa was accom­pa­nied by a dis­cernible Mis­match Neg­a­tiv­i­ty (MMN) response (Näätä­nen et al., 2007). This response showed an intrigu­ing asym­me­try, as seen in a main effect con­di­tion (deviant Latz vs. deviant Lachs, F(1,1920) = 291.84, p < 0.001) of an omnibus mixed-effect mod­el. Cru­cial­ly, the MMN for the deviant Latz was on aver­age more neg­a­tive than the MMN for the deviant Lachs from 135 to 185 ms post deviance onset (p < 0.001). We inter­pret these find­ings as reflect­ing a dif­fer­ence in phono­log­i­cal speci­fici­ty: Fol­low­ing Eulitz and Lahiri, 2004, we assume coro­nal seg­ments ([ts]) to have less spe­cif­ic (‘fea­t­u­ral­ly under­spec­i­fied’) rep­re­sen­ta­tions than dor­sal seg­ments ([ks]). While in stan­dard posi­tion, Lachs acti­vat­ed a mem­o­ry trace with a more spe­cif­ic final con­so­nant for which the deviant pro­vid­ed a stronger mis­match than vice ver­sa, i.e. when Latz acti­vat­ed a mem­o­ry trace with a less spe­cif­ic final con­so­nant. Our results sup­port a mod­el of speech per­cep­tion where sen­so­ry infor­ma­tion is processed in terms of dis­crete units inde­pen­dent of high­er lex­i­cal prop­er­ties, as the asym­me­try can­not be explained by dif­fer­ences in lex­i­cal sur­face fre­quen­cies between Latz and Lachs (both log-fre­quen­cies of 0.69). We can also rule out a fre­quen­cy effect on the seg­men­tal lev­el. Thus, it appears that speech per­cep­tion involves a lev­el of pro­cess­ing where indi­vid­ual seg­men­tal rep­re­sen­ta­tions with­in words are evaluated.