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Journal Article

Perceptual grouping in the human brain: common processing of different cues

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Seymour, K., Karnath, H.-O., & Himmelbach, M. (2008). Perceptual grouping in the human brain: common processing of different cues. NeuroReport, 19(18), 1769-1772. doi:10.1097/WNR.0b013e328318ed82.

Cite as: http://hdl.handle.net/21.11116/0000-0007-8324-C
The perception of global scenes and objects consisting of multiple constituents is based on the integration of local elements or features. Gestalt grouping cues, such as proximity or similarity, can aid this process. Using functional MRI we investigated whether grouping guided by different gestalt cues rely on distinct networks in the brain or share a common network. Our study revealed that gestalt grouping involved the inferior parietal cortex, middle temporal gyrus and prefrontal cortex irrespective of the specific cue used. These findings agree with observations in neurological patients, which suggest that inferior parietal regions may aid the integration of local features into a global gestalt. Damage to this region results in simultanagnosia, a deficit in perceiving multiple objects and global scenes.