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@PHDTHESIS{Khn:62904,
author = {Kühn, Anne},
othercontributors = {Koch, Iring},
title = {{N}euronale {K}orrelate der {V}orhersage hierarchischer
{S}timulussequenzen},
address = {Aachen},
publisher = {Publikationsserver der RWTH Aachen University},
reportid = {RWTH-CONV-124391},
pages = {260 S. : Ill., graph. Darst.},
year = {2011},
note = {Zsfassung in dt. und engl. Sprache. - Prüfungsjahr: 2011.
- Publikationsjahr: 2012; Aachen, Techn. Hochsch., Diss.,
2011},
abstract = {In daily life, we are enclosed by constantly changing
structures. We perceive and learn to appreciate these so
called stimulus sequences in order to appropriately adapt
our behavior. For example, a step onto a moving escalator is
exactly planned to avoid stumbling. But in case of an
escalator not moving, the planning of the step has to be
altered and adapted to the new situation. Such an adaptation
of well experienced behavior is necessary after breaches of
expectancy. In this dissertation, functional magnetic
resonance imaging (fMRI) studies observe neural correlates
of reorientation within well-known stimulus sequences after
breaches of expectancy of different strength, and, of
temporally remote effects after such breaches of expectancy.
Moreover, it is described which cortical areas allow to
efficiently predict long and hierarchically structured
stimulus sequences. Data show that especially the activation
of the frontopolar cortex (Brodmann Area (BA 10)) correlates
with the hierarchical order of to-be-predicted stimulus
sequences. While the temporally remote effect after breaches
of expectancy is reflected in an attenuation of the dorsal
frontomedian activity (BA 9m), the immediate reorientation,
i.e. search for appropriate prediction, is reflected in
activation of a complex cortical network. Thereby the
(median) parietal areas can be interpreted as a regulating
interface between the top-down information of prefrontal
areas and bottom-up information of temporal areas.
Furthermore, the anterior ventrolateral prefrontal cortex is
activated the more, the less reorientation was necessary.},
keywords = {Kognition (SWD) / Funktionelle NMR-Tomographie (SWD) /
Chunking (SWD) / Erwartung (SWD) / Episodisches Gedächtnis
(SWD) / Explizites Gedächtnis (SWD) / Präfrontaler Cortex
(SWD) / Anpassung (SWD) / Abruf (SWD)},
cin = {721110},
ddc = {150},
cid = {$I:(DE-82)721110_20140620$},
typ = {PUB:(DE-HGF)11},
urn = {urn:nbn:de:hbz:82-opus-39425},
url = {http://publications.rwth-aachen.de/record/62904},
}