Research Topics
| Z KourtziSummaryAffiliation: Max Planck Institute for Biological Cybernetics Country: Germany Publications
| Collaborators
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Detail Information
Publications
Object-selective responses in the human motion area MT/MSTZoe Kourtzi
Max Planck Institute for Biological Cybernetics, Spemannstrasse 38, 72076 Tuebingen, Germany
Nat Neurosci 5:17-8. 2002....- Similar cortical correlates underlie visual object identification and orientation judgmentChristian F Altmann
Section Neuropsychology, Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, , , Germany
Neuropsychologia 43:2101-8. 2005..Our findings suggest that object identification and orientation judgment do not follow strictly separable cortical pathways, but rather involve both the dorsal and the ventral stream... - Textures of natural images in the human brain. Focus on "orientation-selective adaptation to first- and second-order patterns in human visual cortex"Zoe Kourtzi
J Neurophysiol 95:591-2. 2006 - Learning and neural plasticity in visual object recognitionZoe Kourtzi
School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Curr Opin Neurobiol 16:152-8. 2006.... 
Distributed neural plasticity for shape learning in the human visual cortexZoe Kourtzi
Max Planck Institute for Biological Cybernetics, Tubingen, Germany
PLoS Biol 3:e204. 2005..We propose that the human brain learns novel objects in complex scenes by reorganizing shape processing across visual areas, while taking advantage of natural image correlations that determine the distinctiveness of target shapes...- Representation of the perceived 3-D object shape in the human lateral occipital complexZoe Kourtzi
Max Planck Institute for Biological Cybernetics and University Clinics, Tubingen, Germany
Cereb Cortex 13:911-20. 2003..Differences in the fMRI adaptation responses across subregions in the LOC suggest that different neural populations in the LOC may mediate different mechanisms for the processing of object features... - Integration of local features into global shapes: monkey and human FMRI studiesZoe Kourtzi
Max Planck Institute for Biological Cybernetics, 72076 Tuebingen, Germany
Neuron 37:333-46. 2003..These findings suggest that unified shape perception in both monkeys and humans involves multiple visual areas that may integrate local elements to global shapes at different spatial scales... - Spatiotemporal characteristics of form analysis in the human visual cortex revealed by rapid event-related fMRI adaptationZoe Kourtzi
Max Planck Institute for Biological Cybernetics, Postfach 21 69, 72012 Tuebingen, Germany
Neuroimage 28:440-52. 2005.... - Representation of perceived object shape by the human lateral occipital complexZ Kourtzi
Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Science 293:1506-9. 2001..These data indicate that the LOC represents not simple image features, but rather higher level shape information... - Visual representation of malleable and rigid objects that deform as they rotateZ Kourtzi
Department of Psychology, Rutgers University, USA
J Exp Psychol Hum Percept Perform 27:335-55. 2001..That is, object representations may be "dynamically remapped" during the analysis of the object's motion... - "But still, it moves"Zoe Kourtzi
Max Planck Institute for Biological Cybernetics, Spemannstrasse 38, 72076 Tuebingen, Germany
Trends Cogn Sci 8:47-9. 2004..demonstrate that form cues that imply motion are integrated with real motion information, and influence perception in both humans and monkeys and the neural processing in prototypical motion areas of the monkey brain... - The lateral occipital complex and its role in object recognitionK Grill-Spector
Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. kalanit2psyche.mit.edu
Vision Res 41:1409-22. 2001..Overall, these results indicate that the lateral occipital complex plays an important role in human object recognition... - Surface segmentation cues influence negative priming for novel and familiar shapesF Loula
Department of Psychology, Rutgers University, Newark, New Jersey 07102, USA
J Exp Psychol Learn Mem Cogn 26:929-44. 2000..Thus, selective attention for overlapping shapes may be best understood in relation to surface segmentation processes... - Cortical regions involved in perceiving object shapeZ Kourtzi
Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
J Neurosci 20:3310-8. 2000..These results suggest that common regions in the LOC are involved in extracting and/or representing information about object structure from different image cues... - The visual representation of three-dimensional, rotating objectsZ Kourtzi
Department of Psychology, Rutgers University, Newark, USA
Acta Psychol (Amst) 102:265-92. 1999..Motion can also enhance path specific view linkage when visible object parts differ across views. Such results suggest that object representations depend on motion processes... - Activation in human MT/MST by static images with implied motionZ Kourtzi
Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, NE20 4043, 77 Massachusetts Ave, Cambridge, MA 02139 4307, USA
J Cogn Neurosci 12:48-55. 2000..These results suggest that brain regions involved in the visual analysis of motion are also engaged in processing implied dynamic information from static images... - A binocular rivalry study of motion perception in the human brainK Moutoussis
Max Planck Institute for Biological Cybernetics, Spemannstrasse 38, 72076 Tuebingen, Germany
Vision Res 45:2231-43. 2005.... - The integration of object propertiesJ Ceraso
Department of Psychology, Rutgers State University of New Jersey, Newark College of Arts and Sciences 07102, USA
J Exp Psychol Learn Mem Cogn 24:1152-61. 1998..Unitariness, temporal contiguity, and intention, however, were factors that influenced memory coherence. The authors concluded that integration occurs when properties are encoded as the constituents of a cognitive structure... - 3D shape perception from combined depth cues in human visual cortexAndrew E Welchman
Max-Planck Institute for Biological Cybernetics, Postfach 2169, , Germany
Nat Neurosci 8:820-7. 2005..These findings provide insight into the neural circuits engaged when the human brain combines different information sources for unified 3D visual perception... 
Experience shapes the utility of natural statistics for perceptual contour integrationD Samuel Schwarzkopf
School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
Curr Biol 18:1162-7. 2008..Thus, short-term experience in adulthood shapes the interpretation of scenes by assigning new statistical utility to image regularities...- Linking form and motion in the primate brainZoe Kourtzi
School of Psychology, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
Trends Cogn Sci 12:230-6. 2008.... - Neural coding of global form in the human visual cortexDirk Ostwald
School of Psychology, University of Birmingham, Edgbaston, Birmingham, UK
J Neurophysiol 99:2456-69. 2008..These findings suggest that the human visual system uses a code of increasing efficiency across stages of analysis that is critical for the successful detection and recognition of objects in complex environments... - The cortical representation of objects rotating in depthSarah Weigelt
Max Planck Institute for Brain Research, D 60528 Frankfurt am Main, Germany
J Neurosci 27:3864-74. 2007..Together, our neuroimaging study advances the understanding of the cortical mechanisms mediating the influence of motion on object processing... - Neural correlates of disparity-defined shape discrimination in the human brainChandramouli Chandrasekaran
School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
J Neurophysiol 97:1553-65. 2007.... 
Uncertainty and invariance in the human visual cortexBosco S Tjan
Department of Psychology and Neuroscience Graduate Program, University of Southern California, Los Angeles, CA 90007, USA
J Neurophysiol 96:1556-68. 2006..In particular, our findings provide novel evidence that occipitotemporal areas in the ventral visual pathway form a cascade of decision stages with increasing degree of signal uncertainty and feature invariance...- Multivoxel pattern selectivity for perceptually relevant binocular disparities in the human brainTim J Preston
School of Psychology, University of Birmingham, Edgbaston, Birmingham, United Kingdom
J Neurosci 28:11315-27. 2008..Intriguingly, perceptually relevant responses in the dorsal stream are tuned to disparity content and emerge at a comparatively earlier stage than categorical representations for depth position in the ventral stream... - Shape saliency modulates contextual processing in the human lateral occipital complexChristian F Altmann
Max Planck Institute for Biological Cybernetics, , Germany
J Cogn Neurosci 16:794-804. 2004..That is, neural populations in the LOC encode context information when relevant to the perception of target shapes, but represent salient targets independent of context changes... - Implied motion from form in the human visual cortexBart Krekelberg
The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
J Neurophysiol 94:4373-86. 2005..The LOC, however, has different cells that respond to the structure of real motion patterns versus implied motion patterns. Such a differential response may allow ventral areas to further analyze the structure of global patterns... - A matching advantage for dynamic human facesIan M Thornton
Max Planck Institute for Biological Cybernetics, Tubingen, Germany
Perception 31:113-32. 2002.... - Perceptual organization of local elements into global shapes in the human visual cortexChristian F Altmann
Max-Planck Institute for Biological Cybernetics, Spemannstrasse 38, , Germany
Curr Biol 13:342-9. 2003..Thus, these findings provide novel evidence for the role of both early feature integration processes and higher stages of visual analysis in coherent visual perception... - Neural substrates for action understanding at different description levels in the human brainVaia Lestou
School of Psychology, University of Birmingham, Edgbaston, Birmingham, UK
J Cogn Neurosci 20:324-41. 2008.... - Flexible coding for categorical decisions in the human brainSheng Li
School of Psychology, University of Birmingham, Birmingham B15 2TT, United Kingdom
J Neurosci 27:12321-30. 2007.... - Learning to discriminate complex movements: biological versus artificial trajectoriesJan Jastorff
Laboratory for Action Representation and Learning, Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, University Clinic, Tubingen, Germany
J Vis 6:791-804. 2006..This process seems to operate independently of the consistency of the patterns with biologically relevant body shapes but seems to require the compatibility of the learned movements with a global underlying shape... - Development of visually evoked cortical activity in infant macaque monkeys studied longitudinally with fMRIZoe Kourtzi
Max Planck Institute for Biological Cybernetics, 72076 Tuebingen, Germany
Magn Reson Imaging 24:359-66. 2006..The demonstration of visually evoked BOLD responses in young monkeys shows that the BOLD fMRI technique can usefully be employed to address functional questions of brain development...