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Category: Adaptive Control

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Adaptive Control Attention EEG / MEG Neural dynamics Papers Uncategorized

New paper in eLife, Waschke et al.

For­mer Oble­ser­lab PhD stu­dent Leo Waschke is now out in eLife with an inge­nious demon­stra­tion how both endoge­nous and exoge­nous­ly-dri­ven changes in the steep­ness of the brain-elec­tric 1/f pow­er spec­trum (in part linked direct­ly to local excitation:inhibiton, E:I, ratio) in neur­al pop­u­la­tions can affect behav­iour in com­plex, mul­ti-sen­so­ry envi­ron­ments: “Modal­i­ty-spe­cif­ic track­ing of atten­tion and sen­so­ry sta­tis­tics in the human elec­tro­phys­i­o­log­i­cal spec­tral expo­nent”. 

The results draw heav­i­ly on the recent spec­tral-slope expo­nent work by our col­lab­o­ra­tors at Uni­ver­si­ty of Cal­i­for­nia San Diego in the lab of Bradley Voytek, and have come togeth­er in a three-lab col­labo of Lübeck, San Diego, and Leo’s cur­rent sci­en­tif­ic home, the Dou­glas Gar­rett lab at the MPIB.

 
Con­grat­u­la­tions, Leo!

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Adaptive Control Editorial Notes Neural Oscillations Papers

New Paper accept­ed in Plos Biol­o­gy, Alavash et al.

 

Our lab is proud and hap­py that anoth­er major step­ping stone from our ERC con­sol­ida­tor project (“AUDADAPT”) is now accept­ed for pub­li­ca­tion in PLoS Biol­o­gy! Con­grat­u­la­tions to our first author Dr Mohsen Alavash, now a senior researcher in the Obleser lab in his own right.

 

 

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Adaptive Control Attention fMRI Grants Hearing Loss Uncategorized

New DFG project led by Mohsen Alavash on the Net­work Neu­ro­science of Spa­tial Attention

Con­grat­u­la­tions to our cur­rent­ly ERC-fund­ed lab mem­ber and post­doc Mohsen Alavash who has just secured 3‑year fund­ing (~380,000 €) by the Deutsche Forschungs­ge­mein­schaft (DFG) for an ambi­tious project: Mohsen wants to get clos­er to a net­work/­graph-the­o­ret­i­cal descrip­tion of how spa­tial atten­tion in the lis­ten­ing brain is organ­ised. In a lat­er stage of the project, Mohsen also plans on study­ing how the net­work organ­i­sa­tion of spa­tial atten­tion may be altered in hear­ing-impaired listeners.

We are glad that Mohsen plans on run­ning this project with­in the Obleser lab, here at the Uni­ver­si­ty of Lübeck.

Also, make sure to check out Mohsen’s lat­est pub­li­ca­tion on the topic.

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Adaptive Control Auditory Neuroscience Auditory Speech Processing Auf deutsch Events Executive Functions Hearing Loss Media Speech

Jonas pre­sent­ed for the KIND Hörs­tiftung in Berlin (Video)

Im Feb­ru­ar hat­te ich die Ehre, für die Kind Hörs­tiftung auf deren 2019er Sym­po­sium in Berlin unsere Arbeit­en zur Vorher­sage des Hör­erfol­gs exem­plar­isch anhand einiger unser­er Stu­di­en all­ge­mein­ver­ständlich zu beleucht­en. Ein 25-minütiges Video dieses Vor­trags ist jet­zt online.

(In Feb­ru­ary, I had the hon­our of pre­sent­ing some of our recent work on pre­dict­ing indi­vid­u­als’ lis­ten­ing suc­cess at the sym­po­sium of the Kind Hear­ing Foun­da­tion. A video in Ger­man is now available.)

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Adaptive Control Ageing Attention Auditory Cortex Auditory Neuroscience Auditory Speech Processing Executive Functions fMRI Papers Psychology Uncategorized

New paper in PNAS by Alavash, Tune, Obleser

How brain areas com­mu­ni­cate shapes human com­mu­ni­ca­tion: The hear­ing regions in your brain form new alliances as you try to lis­ten at the cock­tail party

Oble­ser­lab Post­docs Mohsen Alavash and Sarah Tune rock out an intri­cate graph-the­o­ret­i­cal account of mod­u­lar recon­fig­u­ra­tions in chal­leng­ing lis­ten­ing sit­u­a­tions, and how these pre­dict indi­vid­u­als’ lis­ten­ing success.

Avail­able online now in PNAS! (Also, our uni is cur­rent­ly fea­tur­ing a Ger­man-lan­guage press release on it, as well as an Eng­lish-lan­guage ver­sion)

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Adaptive Control Auditory Cortex Auditory Neuroscience Auditory Working Memory Neural Oscillations Papers Perception Psychology Uncategorized

New paper in The Jour­nal of Neu­ro­science: Wilsch et al.., Tem­po­ral expec­ta­tion mod­u­lates the cor­ti­cal dynam­ics of short-term memory

Con­grat­u­la­tions to Oble­ser­lab alum­na Anna Wilsch, who is – for now – leav­ing acad­e­mia on a true high with her lat­est offer­ing on how tem­po­ral expec­ta­tions (“fore­knowl­edge” about when some­thing is to hap­pen) shape the neur­al make-up of memory!

Record­ed while the Oble­ser­lab was still in Leipzig at the Max Planck, and analysed with great input from our co-authors Mol­ly Hen­ry, Björn Her­rmann as well as Christoph Her­rmann (Old­en­burg), Anna used Mag­ne­toen­cephalog­ra­phy in an intri­cate but ulti­mate­ly very sim­ple sen­so­ry-mem­o­ry paradigm.

 

While sen­so­ry mem­o­ries of the phys­i­cal world fade quick­ly, Anna here shows that this decay of short-term mem­o­ry can be coun­ter­act­ed by tem­po­ral expectation.

Notably, spa­tial­ly dis­trib­uted cor­ti­cal pat­terns of alpha (8−−13 Hz) pow­er showed oppos­ing effects in audi­to­ry vs. visu­al sen­so­ry cor­tices. More­over, alpha-tuned con­nec­tiv­i­ty changes with­in supramodal atten­tion net­works reflect the allo­ca­tion of neur­al resources as short-term mem­o­ry rep­re­sen­ta­tions fade.

— to be updat­ed as the paper will become avail­able online –

Categories
Adaptive Control Attention Auditory Working Memory Clinical relevance Executive Functions fMRI Papers Psychology Publications Uncategorized

New paper in press in ‘Neu­roim­age’: Alavash, Lim, et al

Oble­ser­lab post­doc Mohsen Alavash and Oble­ser­lab Alum­na Sung-Joo Lim are in press at Neu­roim­age!

They argue with data from a place­bo-con­trolled dopamin­er­gic inter­ven­tion study that BOLD sig­nal vari­abil­i­ty and the func­tion­al con­nec­tome are sur­pris­ing­ly clear­ly affect­ed by L‑Dopa, and (ii) that the degree of change in these met­rics can explain the degree to which indi­vid­u­als will prof­it from L‑DOPA in per­form­ing the chal­leng­ing lis­ten­ing task (while oth­ers dont; Preprint here ).

Alavash, M., Lim, S.J., Thiel, C., Sehm, B., Deser­no, L., & Obleser, J. (2018) Dopamin­er­gic mod­u­la­tion of hemo­dy­nam­ic sig­nal vari­abil­i­ty and the func­tion­al con­nec­tome dur­ing cog­ni­tive per­for­mance. Neu­roim­age. In press.

— Thanks also and in par­tic­u­lar to our col­leagues Chris­tiane Thiel of Old­en­burg, and Bern­hard Sehm and Lorenz Deser­no of Leipzig, who helped us made this large-scale L‑DOPA project happen!

 

 

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Adaptive Control Ageing Job Offers Speech Uncategorized

Want to come work with us?

Post­doc posi­tion in the Obleser lab, in the ERC-fund­ed project “Audadapt” — dead­line for appli­ca­tions very soon! (Nov 30 2017). Check out all appli­ca­tions details here!