Research Topics
| Jens Max HopfSummaryAffiliation: Otto-von-Guericke University Country: Germany Publications
| Collaborators
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Detail Information
Publications
Localizing visual discrimination processes in time and spaceJens Max Hopf
Department of Neurology II, Otto von Guericke University, D 39120 Magdeburg, Germany
J Neurophysiol 88:2088-95. 2002..These findings indicate that the earliest measurable correlates of discriminative operations in the visual system appear as neural activity in circumscribed regions of the ventral processing stream...- Attention to features precedes attention to locations in visual search: evidence from electromagnetic brain responses in humansJens Max Hopf
Department of Neurology II, Otto von Guericke University, D 39120 Magdeburg, Germany
J Neurosci 24:1822-32. 2004.... - The neural site of attention matches the spatial scale of perceptionJens Max Hopf
Department of Neurology II, Otto von Guericke University, D 39120 Magdeburg, Germany
J Neurosci 26:3532-40. 2006.... - Neural sources of focused attention in visual searchJ M Hopf
Department of Neurology II, Otto von Guericke University, D 39120 Magdeburg, Germany
Cereb Cortex 10:1233-41. 2000.... - The temporal flexibility of attentional selection in the visual cortexJens Max Hopf
Department of Neurology II, Otto von Guericke University and Leibniz Institute for Neurobiology, Leipziger Strasse 44, D 39120 Magdeburg, Germany
Curr Opin Neurobiol 15:183-7. 2005..Depending on the specific processing demands of the experimental task, location-based, feature-based or object-based selection might be given temporal priority on a time scale of tens of milliseconds... - Popout modulates focal attention in the primary visual cortexJens Max Hopf
Department of Neurology II, Otto von Guericke University of Magdeburg, 39120 Magdeburg, Germany
Neuroimage 22:574-82. 2004.... - How does attention attenuate target-distractor interference in vision?. Evidence from magnetoencephalographic recordingsJ M Hopf
Department of Neurology II, Otto von Guericke University, Leipziger Strasse 44, D 39120 Magdeburg, Germany
Brain Res Cogn Brain Res 15:17-29. 2002..These findings support theories of visual search that emphasize location-based attentional selection as a key mechanism in resolving ambiguous feature coding in vision... - Neural mechanisms of surround attenuation and distractor competition in visual searchCarsten N Boehler
Department of Neurology, Otto von Guericke University and Leibniz Institute for Neurobiology, Magdeburg 39120, Germany
J Neurosci 31:5213-24. 2011..A theoretical framework is proposed that links both operations in a common model of top-down attentional selection in visual cortex... - Neural correlates of exemplar novelty processing under different spatial attention conditionsChristian Michael Stoppel
Department of Neurology and Centre for Advanced Imaging, Otto von Guericke University, Magdeburg, Germany
Hum Brain Mapp 30:3759-71. 2009.... - Spatiotemporal dynamics of feature-based attention spread: evidence from combined electroencephalographic and magnetoencephalographic recordingsChristian Michael Stoppel
Department of Neurology and Center for Advanced Imaging, Otto von Guericke University, 39120 Magdeburg, Germany
J Neurosci 32:9671-6. 2012..The current results indicate that feature-based attention operates in a global manner but needs time to spread and provide strong support for the feature-similarity gain model... - Neural processing of reward magnitude under varying attentional demandsChristian Michael Stoppel
Department of Neurology and Centre for Advanced Imaging, Otto von Guericke University, Leipziger Str 44, 39120 Magdeburg, Germany
Brain Res 1383:218-29. 2011..These results suggest that anticipated reward-magnitude and task-related attentional demands are concurrently processed in partially overlapping neural networks of anterior-cingulate, insular/orbitofrontal, and mesolimbic regions... - Mandatory processing of irrelevant fearful face features in visual searchDaniela B Fenker
Otto von Guericke University, Magdeburg, Germany
J Cogn Neurosci 22:2926-38. 2010..However, this may not necessarily be echoed at the behavioral level as long as task-relevant selection operations exhaust attentional resources... - Analysis of pathways mediating preserved vision after striate cortex lesionsMircea Ariel Schoenfeld
Department of Neurology II, University of Magdeburg, 39120 Magdeburg, Germany
Ann Neurol 52:814-24. 2002.... - Neural mechanisms of spatial- and feature-based attention: a quantitative analysisChristian Michael Stoppel
Department of Neurology II, Otto von Guericke University Magdeburg, Leipziger Str 44, 39120 Magdeburg, Germany
Brain Res 1181:51-60. 2007..These results support the idea of a high biological relevance of the feature motion in the visual world... - Feature-based attention modulates direction-selective hemodynamic activity within human MTChristian Michael Stoppel
Department of Neurology and Centre for Advanced Imaging, Otto von Guericke University, Leipziger Str 44, 39120 Magdeburg, Germany
Hum Brain Mapp 32:2183-92. 2011..Our results provide strong support for the validity of the "feature similarity gain model" on the integrated population response as quantified by parametric fMRI in humans. Hum Brain Mapp, 2011. © 2011 Wiley Periodicals, Inc... - The spatial profile of the focus of attention in visual search: insights from MEG recordingsJens Max Hopf
Department of Neurology, Otto von Guericke University and Leibniz Institute for Neurobiology, Magdeburg 39120, Germany
Vision Res 50:1312-20. 2010..The reviewed neuromagnetic evidence is discussed with respect to key notions of the Selective Tuning model of visual attention for which strong support is provided... - High-field FMRI reveals brain activation patterns underlying saccade execution in the human superior colliculusRuth M Krebs
Department of Neurology, Otto von Guericke University, Magdeburg, Germany
PLoS ONE 5:e8691. 2010..The knowledge about the function of this structure is mainly based on single-unit recordings in animals with relatively few neuroimaging studies investigating eye-movement related brain activity in humans... - Is human sentence parsing serial or parallel? Evidence from event-related brain potentialsJens Max Hopf
Clinic for Neurology II, Otto von Guericke University Magdeburg, Leipziger Strasse 44, 39120 Magdeburg, Germany
Brain Res Cogn Brain Res 15:165-77. 2003..Later differences can be related to successful reanalysis in garden-path but not in ungrammatical sentences... - Separable mechanisms underlying global feature-based attentionRowena Bondarenko
Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany, Department of Neurology, Otto von Guericke University, 39120 Magdeburg, Germany, and Department of Experimental Psychology, Ghent University, 9000 Ghent, Belgium
J Neurosci 32:15284-95. 2012.... - Neural correlates of hysterical blindnessMircea Ariel Schoenfeld
Department of Neurology, Otto von Guericke University, 39120 Magdeburg, Germany
Cereb Cortex 21:2394-8. 2011..Furthermore, the observed neurophysiological pattern suggests an involvement of attentional mechanisms in the neural basis hysterical blindness... - Selectivity for speed gradients in human area MT/V5Julio C Martinez-Trujillo
Department of Physiology, McGill University, Montreal, Canada
Neuroreport 16:435-8. 2005.... - Binding 3-D object perception in the human visual cortexYang Jiang
University of Kentucky, College of Medicine, Lexington, KY 40536 0086, USA
J Cogn Neurosci 20:553-62. 2008..The assembly is fed forward to achieve coherent perception of a 3-D object within 500 msec...