WOBIB: 61 - Volkow, et al. (2002) Changes in brain func ...
 
Bib -> Asymmetry | Author | ICA | NMF | Novelty | Statistics | SVD | Title | WOBIB ]
 
 
Exp -> Alphabetic | Asymmetry | ICA | NMF | Novelty | SVD | WOEXP | WOEXT ]
 
 
Ext -> Alphabetic index | Map | Roots ]          [ Brede ]          Loc -> Statistics ]
 


Nora D. Volkow; Wei Zhu; Christoph A. Felder; Klaus Mueller; Tomihisa F. Welsh; Gene J. Wang; Mony J. de Leon. Changes in brain functional homogeneity in subjects with Alzheimer's disease. Psychiatry Research 114(1):39-50, 2002. PMID: 11864808. WOBIB: 61.

Imaging studies have reported marked reductions in brain glucose metabolism in Alzheimer's Disease (AD). However, less is known about disruptions in the patterns of brain metabolic activity. Here we questioned whether AD affects the patterns of homogeneity/heterogeneity in brain metabolism. PET images of 35 AD subjects were compared with those of 35 controls. A template was applied to extract a cortical rim, which was partitioned into 990 contiguous regions. Estimates of metabolic homogeneity were obtained using the coefficient of variation (CV). The CV of the entire cortex was found to be significantly larger in AD, suggesting increased heterogeneity at the whole brain level. In contrast, regional CV was significantly lower in AD in temporal and parietal cortices, which were the regions that along with the precuneus had the largest metabolic decrements, though the precuneus had increased CV. The enhanced heterogeneity for the global cortical pattern most likely reflects variability in the degree of pathology among brain regions as well as neuroanatomical disconnection. The enhanced homogeneity in parietal and temporal cortices is likely to reflect loss of regional differentiation (i.e. macrocolumnar disorganization). The enhanced CV in precuneus, despite its marked reductions in metabolism, suggests that increases in regional homogeneity in parietal and temporal cortices are not a mere reflection of the decrement in metabolism.

Asymmetry: 0.22559 (left: -1, right: +1)

VRML2 file (75 Kb)

1 Relative metabolic decreases in Alzheimer's disease. Relative metabolic differences between Alzheimer's disease patients and controls. WOEXP: 191.
2 Relative metabolic increases in Alzheimer's disease. Relative metabolic differences between Alzheimer's disease patients and controls. WOEXP: 192.


corner cube of WOBIB_61

Related - positive correlated volumes

+1: 1.00000 Nora D. Volkow; Wei Zhu; Christoph A. Felder; Klaus Mueller; Tomihisa F. Welsh; Gene J. Wang; Mony J. de Leon. Changes in brain functional homogeneity in subjects with Alzheimer's disease. Psychiatry Research 114(1):39-50, 2002. PMID: 11864808. WOBIB: 61.

+2: 0.48865 Gemma A. Calvert; Ruth Campbell; Michael J. Brammer. Evidence from functional magnetic resonance imaging of crossmodal binding in the human heteromodal cortex. Current Biology 10(11):649-657, 2000. PMID: 10837246. FMRIDCID: . WOBIB: 154.

+3: 0.47653 Kathryn M. Abel; Matthew P. G. Allin; Katarzyna Kucharska-Pietura; Anthony S. David; Chris Andrew; Steven C. R. Williams; Michael J. Brammer; Mary L. Phillips. Ketamine alters neural processing of facial emotion recognition in healthy men: an fMRI study. NeuroReport 14(3):387-391, 2003. PMID: 12634489. DOI: 10.1097/01.wnr.0000058031.29600.31. FMRIDCID: . WOBIB: 155.

+4: 0.46259 Gene E. Alexander; Kewei Chen; Pietro Pietrini; Stanley I. Rapoport; Eric M. Reiman. Longitudinal PET Evaluation of Cerebral Metabolic Decline in Dementia: A Potential Outcome Measure in Alzheimer's Disease Treatment Studies. American Journal of Psychiatry 159(5):738-45, 2002. PMID: 11986126. WOBIB: 91.

+5: 0.44953 J. D. Bremner; R. B. Innis; T. White; M. Fujita; D. Silbersweig; A. W. Goddard; L. Staib; E. Stern; A. Cappiello; S. Woods; R. Baldwin; D. S. Charney. SPECT [I-123]iomazenil measurement of the benzodiazepine receptor in panic disorder. Biological Psychiatry 47(2):96-106, 2000. PMID: 10664825. WOBIB: 126.

+6: 0.44708 Nancy C. Andreasen; D. S. O'Leary; T. Cizadlo; Stephan Arndt; K. Rezai; G. L. Watkins; L. L. Ponto; R. D. Hichwa. II. PET studies of memory: novel versus practiced free recall of word lists. NeuroImage 2(4):296-305, 1995. PMID: 9343614. WOBIB: 85.

+7: 0.44479 J. Downar; A. P. Crawley; D. J. Mikulis; K. D. Davis. A multimodal cortical network for the detection of changes in the sensory environment. Nature Neuroscience 3(3):277-283, 2000. PMID: 10700261. DOI: 10.1038/72991. FMRIDCID: . WOBIB: 148.

+8: 0.43882 Mikkel Wallentin; Torben Ellegaard Lund; Svend Østergaard; Leif Østergaard; Andreas Roepstorff. Motion verb sentences activate left posterior middle temporal cortex despite static context. NeuroReport 16(5):649-652, 2005. PMID: 15812326. FMRIDCID: . WOBIB: 175.

+9: 0.43471 S. J. Blakemore; Geraint Rees; C. D. Frith. How do we predict the consequences of our actions? A functional imaging study. Neuropsychologia 36(6):521-9, 1998. PMID: 9705062. WOBIB: 82.

+10: 0.41000 Mary L. Phillips; E. T. Bullmore; R. Howard; P. W. Woodruff; I. C. Wright; Steven C. R. Williams; A. Simmons; C. Andrew; M. Brammer; Anthony S. David. Investigation of facial recognition memory and happy and sad facial expression perception: an fMRI study. Psychiatry Research 83(3):127-38, 1998. PMID: 9849722. WOBIB: 98.

+11: 0.40592 Nancy C. Andreasen; Daniel S. O'Leary; Ted Cizadlo; Stephan Arndt; Karim Rezai; G. Leonard Watkins; Laura L. Ponto; Richard D. Hichwa. Remembering the past: two facets of episodic memory explored with positron emission tomography. American Journal of Psychiatry 152(11):1576-1585, 1995. PMID: 7485619. FMRIDCID: . BrainMap: 219. WOBIB: 134.

+12: 0.40305 Katharina Henke; Christian R. A. Mondadori; Valerie Treyer; Roger M. Nitsch; Alfred Buck; Christoph Hock. Nonconscious formation and reactivation of semantic associations by way of the medial temporal lobe. Neuropsychologia 41(8):863-876, 2003. PMID: 12667523. FMRIDCID: . WOBIB: 152.

+13: 0.38710 Håkan Fischer; G. Wik; M. Fredrikson. Functional neuroanatomy of robbery re-experience: affective memories studied with PET. NeuroReport 7(13):2081-6, 1996. PMID: 8930963. WOBIB: 103.

+14: 0.38643 G. R. Fink; H. J. Markowitsch; M. Reinkemeier; T. Bruckbauer; J. Kessler; W. D. Heiss. Cerebral representation of one's own past: neural networks involved in autobiographical memory. Journal of Neuroscience 16(13):4275-82, 1996. PMID: 8753888. WOBIB: 68.

+15: 0.38528 L. Ryan; L. Nadel; K. Keil; K. Putnam; D. Schnyer; T. Trouard; M. Moscovitch. Hippocampal complex and retrieval of recent and very remote autobiographical memories: evidence from functional magnetic resonance imaging in neurologically intact people. Hippocampus 11(6):707-14, 2001. PMID: 11811665. WOBIB: 73.

+16: 0.38501 Russell A. Poldrack; John E. Desmond; Gary H. Glover; John D. E. Gabrieli. The neural basis of visual skill learning: an fMRI study of mirror reading. Cerebral Cortex 8(1):1-10, 1998. PMID: 9510380. WOBIB: 15.

+17: 0.38412 E. Stern; D. A. Silbersweig; K. Y. Chee; Andrew Holmes; M. M. Robertson; M. Trimble; Christopher D. Frith; Richard S. J. Frackowiak; Raymond J. Dolan. A functional neuroanatomy of tics in Tourette syndrome. Archives of General Psychiatry 57(8):741-748, 2000. PMID: 10920461. FMRIDCID: . WOBIB: 130.

+18: 0.37933 Anna Pissiota; Orjan Frans; Manuel Fernandez; Lars von Knorring; Hakan Fischer; Mats Fredrikson. Neurofunctional correlates of posttraumatic stress disorder: a PET symptom provocation study. European Archives of Psychiatry and Clinical Neuroscience 252(2):68-75, 2002. PMID: 12111339. DOI: 10.1007/s004060200014. WOBIB: 66.

+19: 0.37230 Nicola M. Hunkin; Andrew R. Mayes; Lloyd J. Gregory; Amanda K. Nicholas; Julia A. Nunn; Michael J. Brammer; Edward T. Bullmore; Steven C. R. Williams. Novelty-related activation within the medial temporal lobes. Neuropsychologia 40(8):1456-1464, 2002. PMID: 11931949. FMRIDCID: . WOBIB: 143.

+20: 0.37068 E. Grossman; M. Donnelly; R. Price; D. Pickens; V. Morgan; G. Neighbor; R. Blake. Brain areas involved in perception of biological motion. Journal of Cognitive Neuroscience 12(5):711-20, 2000. PMID: 11054914. WOBIB: 33.

+21: 0.36209 Ian Law; Claus Svarer; Søren Holm; Olaf B. Paulson. The activation pattern in normal humans during suppression, imagination and performance of saccadic eye movements. Acta Physiologica Scandinavica 161(3):419-434, 1997. PMID: 9401596. FMRIDCID: . WOBIB: 135.

+22: 0.36203 Terry L. Jernigan; A. L. Ostergaard; Ian Law; Claus Svarer; Christian Gerlach; O. B. Paulson. Brain activation during word identification and word recognition. NeuroImage 8(1):93-105, 1998. PMID: 9698579. WOBIB: 35.

+23: 0.36145 P. E. Paulson; S. Minoshima; T. J. Morrow; K. L. Casey. Gender differences in pain perception and patterns of cerebral activation during noxious heat stimulation in humans. Pain 76(1-2):223-9, 1998. PMID: 9696477. WOBIB: 118.

+24: 0.35860 B. J. Casey; Jonathan D. Cohen; K. O'Craven; Richard J. Davidson; W. Irwin; C. A. Nelson; D. C. Noll; X. Hu; M. J. Lowe; B. R. Rosen; C. L. Truwitt; P. A. Turski. Reproducibility of fMRI results across four institutions using a spatial working memory task. NeuroImage 8(3):249-261, 1998. PMID: 9758739. FMRIDCID: . WOBIB: 116.

+25: 0.35575 Darren R. Gitelman; Todd B. Parrish; Karl J. Friston; M-Marsel Mesulam. Functional anatomy of visual search: regional segregations within the frontal eye fields and effective connectivity of the superior colliculus. NeuroImage 15(4):970-82, 2002. PMID: 11906237. DOI: 10.1006/nimg.2001.1006. WOBIB: 3.


Antirelated - negatively correlated volumes

-1: 0.00000 J. D. Bremner; R. B. Innis; S. M. Southwick; L. Staib; S. Zoghbi; D. S. Charney. Decreased benzodiazepine receptor binding in prefrontal cortex in combat-related posttraumatic stress disorder. American Journal of Psychiatry 157(7):1120-1126, 2000. PMID: 10873921. WOBIB: 67.

-2: 0.00181 F. Hyder; E. A. Phelps; C. J. Wiggins; K. S. Labar; A. M. Blamire; R. G. Shulman. "Willed action": a functional MRI study of the human prefrontal cortex during a sensorimotor task. Proc Natl Acad Sci U S A 94(13):6989-6994, 1997. PMID: 9192679. WOBIB: 6.

-3: 0.00259 I. Indovina; J. N. Sanes. On somatotopic representation centers for finger movements in human primary motor cortex and supplementary motor area. NeuroImage 13(6 Pt 1):1027-34, 2001. PMID: 11352608. DOI: 10.1006/nimg.2001.0776. WOBIB: 11.

-4: 0.00392 E. A. Phelps; F. Hyder; A. M. Blamire; R. G. Shulman. FMRI of the prefrontal cortex during overt verbal fluency. NeuroReport 8(2):561-5, 1997. PMID: 9080448. WOBIB: 12.

-5: 0.00819 T. Suhara; F. Yasuno; Y. Sudo; M. Yamamoto; M. Inoue; Y. Okubo; K. Suzuki. Dopamine D2 receptors in the insular cortex and the personality trait of novelty seeking. NeuroImage 13(5):891-895, 2001. PMID: 11304084. DOI: 10.1006/nimg.2001.0761. FMRIDCID: . WOBIB: 160.

Bib -> Asymmetry | Author | ICA | NMF | Novelty | Statistics | SVD | Title | WOBIB ]
Exp -> Alphabetic | Asymmetry | ICA | NMF | Novelty | SVD | WOEXP | WOEXT ]
Ext -> Alphabetic index | Map | Roots ]          [ Brede ]          Loc -> Statistics ]
Automatically constructed by Brede Toolbox through brede_bib_bib2html, 2006-08-15T20:31:05