Hauptseite > Publikationsdatenbank > Intrinsic network connectivity reflects consistency of synesthetic experiences > print

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024 7 _ |a 10.1523/JNEUROSCI.5401-11.2012
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024 7 _ |a 2128/20565
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041 _ _ |a eng
082 _ _ |a 590
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|a Neurosciences
100 1 _ |0 P:(DE-Juel1)VDB81019
|a Dovern, A.
|b 0
|u FZJ
245 _ _ |a Intrinsic network connectivity reflects consistency of synesthetic experiences
260 _ _ |a Washington, DC
|b Soc.
|c 2012
300 _ _ |a 7614 - 7621
336 7 _ |a Journal Article
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440 _ 0 |0 3603
|a Journal of Neuroscience
|v 32
|x 0270-6474
|y 22
500 _ _ |a This work was supported by Grant 8762754 of the Kommission fuer Klinische Forschung at the Klinikum Rechts der Isar (to V. R.). We are grateful to our subjects and our colleagues at the Institute of Neurocience and Medicine, Research Centre Julich.
520 _ _ |a Studying cognitive processes underlying synesthesia, a condition in which stimulation of one sensory modality automatically leads to abnormal additional sensory perception, allows insights into the neural mechanisms of normal and abnormal cross-modal sensory processing. Consistent with the notion that synesthesia results from hyperconnectivity, functional connectivity analysis (adopting independent component analysis and seed-based correlation analysis) of resting-state functional magnetic resonance imaging data of 12 grapheme-color synesthetes and 12 nonsynesthetic control subjects revealed, in addition to increased intranetwork connectivity, both a global and a specific (medial and lateral visual networks to a right frontoparietal network) increase of intrinsic internetwork connectivity in grapheme-color synesthesia. Moreover, this increased intrinsic network connectivity reflected the strength of synesthetic experiences. These findings constitute the first direct evidence of increased functional network connectivity in synesthesia. In addition to this significant contribution to the understanding of the neural mechanisms of synesthesia, our results have important general implications. In combination with data derived from clinical populations, our data strongly suggest that altered differences in intrinsic network connectivity are directly related to the phenomenology of human experiences.
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650 _ 2 |2 MeSH
|a Adult
650 _ 2 |2 MeSH
|a Analysis of Variance
650 _ 2 |2 MeSH
|a Auditory Perception: physiology
650 _ 2 |2 MeSH
|a Brain: blood supply
650 _ 2 |2 MeSH
|a Brain: pathology
650 _ 2 |2 MeSH
|a Brain Mapping
650 _ 2 |2 MeSH
|a Color Perception
650 _ 2 |2 MeSH
|a Female
650 _ 2 |2 MeSH
|a Humans
650 _ 2 |2 MeSH
|a Image Processing, Computer-Assisted
650 _ 2 |2 MeSH
|a Magnetic Resonance Imaging
650 _ 2 |2 MeSH
|a Male
650 _ 2 |2 MeSH
|a Neural Pathways: blood supply
650 _ 2 |2 MeSH
|a Neural Pathways: pathology
650 _ 2 |2 MeSH
|a Oxygen: blood
650 _ 2 |2 MeSH
|a Perceptual Disorders: pathology
650 _ 2 |2 MeSH
|a Phonetics
650 _ 2 |2 MeSH
|a Regression Analysis
650 _ 2 |2 MeSH
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650 _ 2 |2 MeSH
|a Young Adult
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700 1 _ |0 P:(DE-Juel1)131720
|a Fink, G.R.
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700 1 _ |0 P:(DE-HGF)0
|a Fromme, A.
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|a Wohlschlaeger, A.
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|a Weiss, P.H.
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