Category: Uncategorized

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Auditory Perception Clinical relevance Degraded Acoustics Effort Executive Functions Hearing Loss Papers Perception Psychology Speech perception Uncategorized

New paper in Trends in Hear­ing: Hear­ing aids add a demon­stra­ble amount of cog­ni­tive burden

A true Hoer­hanse col­labo: Markus Kem­per and our col­leagues from the Deutsche Hörg­eräte Insti­tut (DHI) show, with Jonas’ help, and using data acquired in our lab, that hear­ing aids do take their how­ev­er slight toll on the cog­ni­tive system: 

Despite the unques­tion­ably great help that hear­ing devices do pro­vide to those with impaired hear­ing, the tech­ni­cal noise and dig­i­tal sig­nal pro­cess­ing chain of hear­ing aids do ampli­fy mea­sur­ably the typ­i­cal sig­na­tures of effort­ful listening.

Espe­cial­ly the pupil dila­tion, hall­mark of increased locus coeruleus/noradrenergic activ­i­ty in response to sensory–cognitive chal­lenges, is notably more pro­nounced when lis­ten­ers respond to a stan­dard speech-intell­gi­bil­i­ty test (OLSA) while lis­ten­ing through a “trans­par­ent” (i.e., switched-on, but not ampli­fy­ing) hear­ing aid.

Out now in Trends in Hear­ing.

Categories
Adaptive Control EEG / MEG Evoked Activity Linguistics Neural dynamics Papers Semantics Uncategorized

New paper in Jour­nal of Neu­ro­science: Mamash­li et al.

Jonas col­lab­o­rat­ed with for­mer Max Planck col­leagues and the Mari­nos Imag­ing Cen­ter at Har­vard (first author Fahimeh Mamash­li) on a re-analy­sis of a sim­ple speech/language par­a­digm.

In this new paper out now in J Neu­rosci, Fahimeh shows that activ­i­ty in the infe­ri­or frontal gyrus (IFG) doesn’t just respond to meaning—it pre­dicts it. Using machine learn­ing, we demon­strate that IFG activ­i­ty can fore­cast future activ­i­ty in the supe­ri­or and mid­dle tem­po­ral gyri dur­ing the N400 win­dow, a key neur­al mark­er of seman­tic pro­cess­ing. This pro­vides rare, arguably causal, evi­dence for feed­back from frontal to tem­po­ral areas, sup­port­ing dynam­ic, bidi­rec­tion­al mod­els of lan­guage comprehension.

Categories
Computational Modelling Media Uncategorized

Jonas has become a mem­ber of the Bern­stein Network

As of today, I am hon­oured to have become a mem­ber of the Bern­stein Net­work Com­pu­ta­tion­al Neu­ro­science.

The Bern­stein Net­work Com­pu­ta­tion­al Neu­ro­science brings togeth­er over 200 research groups and 450 indi­vid­ual sci­en­tists world­wide, facil­i­tat­ing col­lab­o­ra­tion between exper­i­men­tal neu­ro­science, the­o­ret­i­cal mod­el­ing, and com­put­er sim­u­la­tion. Estab­lished in 2004 through fund­ing by the Ger­man Fed­er­al Min­istry of Edu­ca­tion and Research (BMBF), the net­work aims to trans­late the­o­ret­i­cal neu­ro­science into clin­i­cal and tech­ni­cal applications.

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Events Uncategorized

The Obleser lab branch­es out

Our lab has con­tin­ued to diver­si­fy con­sid­er­ably and to mature aca­d­e­m­i­cal­ly over the last years. With Sarah Tune and Malte Wöst­mann, we have now two senior sci­en­tists who lead teams with­in our group, which I am very proud of. Sarah Tune leads the Cog­ni­tive Mod­el­ling team and Malte Wöst­mann has been lead­ing the Dynam­ics of Atten­tion team for quite a while.

At the bor­ders of our lab prop­er, I am very hap­py that Mohsen Alavash remains affil­i­at­ed with us, although he is now pri­mar­i­ly lead­ing the Lübeck OPM–Magnetoencephalography efforts.

Also, Niels Kloost­er­man oper­ates his research inde­pen­dent­ly in the Depart­ment of Psy­chol­o­gy but I am very hon­oured that he col­lab­o­rates close­ly with us.

See the cur­rent and slight­ly updat­ed lab struc­ture of the Obleser lab | Audi­to­ry Cog­ni­tion group | Chair of Phys­i­o­log­i­cal Psy­chol­o­gy and Research Meth­ods again below.

Here’s to great sci­ence to come! Jonas

 

Categories
Editorial Notes Neural dynamics Neural Oscillations Uncategorized

eLife insight on uni­fy­ing brain networks

Oble­ser­lab net­work-sci­ence wiz and des­ig­nat­ed head of OPM-mag­ne­toen­cephalog­ra­phy oper­a­tions in Lübeck, Mohsen Alavash has pro­vid­ed a neat lit­tle “insight” (a mag­a­zine-like brief arti­cle, essen­tial­ly) in sci­en­tif­ic jour­nal eLife, “Brain Activ­i­ty: Uni­fy­ing net­works of a rhythm”.

In his eLife insight, Mohsen cov­ers a new study on brain-wide beta oscil­la­to­ry net­works and their link to the dopamin­er­gic sys­tem. The study emerges from the lab of Julian Neu­mann, with Meera Chik­er­mane as lead author. Check it out. 

 

Categories
Computational Modelling EEG / MEG Events Uncategorized

Joint lab meet­ing with the Don­ner lab

Last week, we ven­tured over to Ham­burg (a mere 65 km south­east of Lübeck) and spent a won­der­ful day with our friend­ly hosts, the Tobias Don­ner lab, at the Uni­ver­si­ty Clin­ic Eppen­dorf (UKE).

It was very inspir­ing to iden­ti­fy and dis­cuss the many com­mon threads that dri­ve our join inter­est in per­cep­tion and deci­sion-mak­ing, in fus­ing com­pu­ta­tion­al mod­el­ling of behav­iour with M/EEG and fMRI data, and in neu­ro­phys­i­o­log­i­cal con­cepts of arousal or excitation/inhibition bal­ance. Stay tuned for more to come from this excit­ing joint ven­ture with our local neigh­bours! Thanks, Tobias and team, for hav­ing us.

PS. I hope you like my attempts of shoot­ing a prop­er “boomer selfie”.

Obleser lab boomer selfie

Categories
Auf deutsch Editorial Notes Media Uncategorized Website

Der neue Hör-Newslet­ter ist da

Unsere diesjährige Aus­gabe des Hör-Newslet­ter mit eini­gen Neuigkeit­en aus Lübeck und aus unserem Forschungsla­bor ist da. Viel Spaß beim Stöbern!

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Uncategorized

Wel­come

We wel­come new PhD stu­dents in the Obleser lab: Andre­ja Sta­j­duhar and Max Schulz.

Andre­ja did her Bachelor’s at York Uni­ver­si­ty in Toron­to, Cana­da, where she focused on how indi­vid­u­als per­ceive faces under dif­fer­ent con­di­tions. At the Uni­ver­si­ty of Toron­to, she focused on under­stand­ing how dif­fer­ences in auto­bi­o­graph­i­cal mem­o­ry per­for­mance may map onto neu­roanatom­i­cal dif­fer­ences in the brain. Now, togeth­er with Dr. Sarah Tune, she is inves­ti­gat­ing how per­cep­tu­al infer­ence changes with age.

Max did his M. Sc. in Biol­o­gy at the Uni­ver­si­ty of Leipzig. Dur­ing his DFG-fund­ed PhD project under super­vi­sion of Malte Wöst­mann, he is focus­ing on ques­tions about cap­ture and sup­pres­sion in audi­to­ry attention.