000145308 001__ 145308
000145308 005__ 20200925192138.0
000145308 037__ $$aDZNE-2020-00664
000145308 041__ $$aEnglish
000145308 082__ $$a150
000145308 1001_ $$0P:(DE-2719)2813753$$aRiemer, Martin$$b0$$eFirst author$$udzne
000145308 1112_ $$aVI. International Conference on Spatial Cognition$$cRome$$d2015-09-07 - 2015-09-11$$wItaly
000145308 245__ $$aFirst person perspective: A methodological constraintfor path integration studies?
000145308 260__ $$c2015
000145308 3367_ $$0PUB:(DE-HGF)1$$2PUB:(DE-HGF)$$aAbstract$$babstract$$mabstract$$s1595930821_18488
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000145308 520__ $$a* Background: Studies on path integration are constrained by the factthat spatial distances are always perceived from the vantage point ofthe body. A spatial distance cannot be perceived per se, but only from the  first  person  perspective. This  constraint  potentially affects production  tasks, in which  participants  are asked  to cover a  previouslylearned standard distance, and discrimination tasks, in which participants have to compare the lengths of two travelled paths. However, responses in reproduction tasks are given while the  participant  ismoving  along  the  path  to  be  estimated, whereas  judgments  in  dis-crimination  tasks are required  only  after  both  distances have beencompleted.* Aims: It was tested whether distance reproduction and distance dis-crimination  are  differentially  affected  by  an  egocentric  coding  ofspace.* Method:  Using  an  immersive  virtual  environment  set-up,  subjects performed  distance  discrimination  and  reproduction  tasks.  Interfer-ence  with  egocentric  spatial  coding was  induced by  repetitive TMSover the right posterior parietal cortex (PPC).Results:  We  report  differential effects  on  the  two  psychophysicaltasks. In distance discrimination, TMS selectively decreased responsevariability, while the mean accuracy of judgments was unaffected. Indistance reproduction,  TMS  had a selective  effect  on  judgment accuracy, while response variability was not affected.* Conclusions:  Errors  in  distance  reproduction  do  not  coincide  with judgment accuracy, but rather with altered judgment precision. These results  allude  to  an  inherent  difference  between discrimination and reproduction tasks, which can be traced back to a differential impactof the first person perspective on spatial distance perception.
000145308 536__ $$0G:(DE-HGF)POF3-344$$a344 - Clinical and Health Care Research (POF3-344)$$cPOF3-344$$fPOF III$$x0
000145308 7001_ $$0P:(DE-2719)2810583$$aWolbers, Thomas$$b1$$eLast author$$udzne
000145308 773__ $$0PERI:(DE-600)2075054-7$$pS60$$tCognitive processing$$v16$$x1612-4782$$y2015
000145308 8564_ $$uhttps://link.springer.com/content/pdf/10.1007/s10339-015-0732-7.pdf
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000145308 9101_ $$0I:(DE-588)1065079516$$6P:(DE-2719)2813753$$aDeutsches Zentrum für Neurodegenerative Erkrankungen$$b0$$kDZNE
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000145308 9141_ $$y2015
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