000169075 001__ 169075
000169075 005__ 20230906150515.0
000169075 0247_ $$2doi$$a10.5061/DRYAD.MGQNK98X8
000169075 0247_ $$2doi$$a10.5061/dryad.mgqnk98x8
000169075 037__ $$aDZNE-2022-01782
000169075 041__ $$aEnglish
000169075 1001_ $$0P:(DE-2719)9001179$$aKuehn, Esther$$b0$$udzne
000169075 245__ $$aDataset: The organizational principles of de-differentiated topographic maps - Data
000169075 260__ $$bDryad$$c2020
000169075 3367_ $$2BibTeX$$aMISC
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000169075 520__ $$aTopographic maps are a fundamental feature of cortex architecture in the mammalian brain. One common theory is that the de-differentiation of topographic maps links to impairments in everyday behavior due to less precise functional map readouts. Here, we tested this theory by characterizing de-differentiated topographic maps in primary somatosensory cortex (SI) of younger and older adults by means of ultra-high resolution functional magnetic resonance imaging together with perceptual finger individuation and hand dexterity. Older adults’ SI maps showed similar amplitude, size, and levels of stimulus-related noise than younger adults’ SI maps, but presented with less representational similarity between distant fingers. Larger population receptive field sizes in older adults’ maps did not correlate with behavior, whereas reduced cortical distances related to better hand dexterity. Our data uncover the drawbacks of a simple de-differentiation model of topographic map function, and motivate the introduction of a feature-based model of cortical reorganization.
000169075 536__ $$0G:(DE-HGF)POF4-353$$a353 - Clinical and Health Care Research (POF4-353)$$cPOF4-353$$fPOF IV$$x0
000169075 588__ $$aDataset connected to DataCite
000169075 7001_ $$0P:(DE-2719)9000645$$aLiu, Peng$$b1$$udzne
000169075 7001_ $$0P:(DE-2719)9001858$$aChrysidou, Anastasia$$b2$$udzne
000169075 7001_ $$aDoehler, Juliane$$b3
000169075 7001_ $$0P:(DE-2719)2810583$$aWolbers, Thomas$$b4$$eLast author$$udzne
000169075 773__ $$a10.5061/dryad.mgqnk98x8
000169075 909CO $$ooai:pub.dzne.de:169075$$pVDB
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000169075 9101_ $$0I:(DE-HGF)0$$6P:(DE-2719)9001858$$aExternal Institute$$b2$$kExtern
000169075 9101_ $$0I:(DE-588)1065079516$$6P:(DE-2719)2810583$$aDeutsches Zentrum für Neurodegenerative Erkrankungen$$b4$$kDZNE
000169075 9131_ $$0G:(DE-HGF)POF4-353$$1G:(DE-HGF)POF4-350$$2G:(DE-HGF)POF4-300$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bGesundheit$$lNeurodegenerative Diseases$$vClinical and Health Care Research$$x0
000169075 9141_ $$y2020
000169075 9201_ $$0I:(DE-2719)1310002$$kAG Wolbers$$lAging, Cognition and Technology$$x0
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000169075 980__ $$aI:(DE-2719)1310002
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