Andrea Mechelli

Summary

Affiliation: University College London
Country: UK

Publications

  1. ncbi request reprint Commentary on "Functional MRI and the study of human consciousness" by Daniel Lloyd
    Andrea Mechelli
    Wellcome Department of Inaging Neuroscience, Institute of Neurology, 12 Queen Square, London WC1N 3BG, UK
    J Cogn Neurosci 14:834-5. 2002
  2. ncbi request reprint Neurolinguistics: structural plasticity in the bilingual brain
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, 12 Queen Square, London WC1N 3BG, UK
    Nature 431:757. 2004
  3. ncbi request reprint Comparing event-related and epoch analysis in blocked design fMRI
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London, WCIN 3BG, UK
    Neuroimage 18:806-10. 2003
  4. ncbi request reprint Dissociating reading processes on the basis of neuronal interactions
    Andrea Mechelli
    Functional Imaging Laboratory, Wellcome Department of Imaging Neuroscience, Institute of Neurology, London, UK
    J Cogn Neurosci 17:1753-65. 2005
  5. pmc Reading without the left ventral occipito-temporal cortex
    Mohamed L Seghier
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, UCL, London WC1N 3BG, UK
    Neuropsychologia 50:3621-35. 2012
  6. ncbi request reprint Neuroimaging studies of word and pseudoword reading: consistencies, inconsistencies, and limitations
    Andrea Mechelli
    Institute of Neurology, London, UK
    J Cogn Neurosci 15:260-71. 2003
  7. ncbi request reprint Estimating efficiency a priori: a comparison of blocked and randomized designs
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London, WC1N 3BG, UK
    Neuroimage 18:798-805. 2003
  8. ncbi request reprint Normal and pathological reading: converging data from lesion and imaging studies
    Cathy J Price
    Wellcome Department of Imaging Neuroscience, University College, London, WC1N 3BG, UK
    Neuroimage 20:S30-41. 2003
  9. ncbi request reprint Structural covariance in the human cortex
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, London WC1N 3BG, United Kingdom
    J Neurosci 25:8303-10. 2005
  10. ncbi request reprint Where bottom-up meets top-down: neuronal interactions during perception and imagery
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London, WC1N 3BG, UK
    Cereb Cortex 14:1256-65. 2004

Detail Information

Publications30

  1. ncbi request reprint Commentary on "Functional MRI and the study of human consciousness" by Daniel Lloyd
    Andrea Mechelli
    Wellcome Department of Inaging Neuroscience, Institute of Neurology, 12 Queen Square, London WC1N 3BG, UK
    J Cogn Neurosci 14:834-5. 2002
  2. ncbi request reprint Neurolinguistics: structural plasticity in the bilingual brain
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, 12 Queen Square, London WC1N 3BG, UK
    Nature 431:757. 2004
    ..This relation between grey-matter density and performance may represent a general principle of brain organization...
  3. ncbi request reprint Comparing event-related and epoch analysis in blocked design fMRI
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London, WCIN 3BG, UK
    Neuroimage 18:806-10. 2003
    ..In addition, we show that the advantage of the event-related over epoch model was engendered by its early onset rather than its late offset, relative to the epoch model...
  4. ncbi request reprint Dissociating reading processes on the basis of neuronal interactions
    Andrea Mechelli
    Functional Imaging Laboratory, Wellcome Department of Imaging Neuroscience, Institute of Neurology, London, UK
    J Cogn Neurosci 17:1753-65. 2005
    ..The present investigation is the first to identify distinct neuronal mechanisms for semantic and phonological contributions to reading...
  5. pmc Reading without the left ventral occipito-temporal cortex
    Mohamed L Seghier
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, UCL, London WC1N 3BG, UK
    Neuropsychologia 50:3621-35. 2012
    ..Preservation and use of this pathway may explain how patients are still able to read short words accurately when LvOT has been damaged...
  6. ncbi request reprint Neuroimaging studies of word and pseudoword reading: consistencies, inconsistencies, and limitations
    Andrea Mechelli
    Institute of Neurology, London, UK
    J Cogn Neurosci 15:260-71. 2003
    ..Furthermore, (iii) they suggest that inconsistencies observed in the previous literature may result from effects arising from a small number of subjects only...
  7. ncbi request reprint Estimating efficiency a priori: a comparison of blocked and randomized designs
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London, WC1N 3BG, UK
    Neuroimage 18:798-805. 2003
    ..Furthermore, we show that the error variance can change with the experimental design. This highlights a problem with a priori comparison of efficiency for two or more experimental designs, which usually assumes identical error variance...
  8. ncbi request reprint Normal and pathological reading: converging data from lesion and imaging studies
    Cathy J Price
    Wellcome Department of Imaging Neuroscience, University College, London, WC1N 3BG, UK
    Neuroimage 20:S30-41. 2003
    ..Future studies are required to examine the connectivity between these areas during normal and abnormal reading...
  9. ncbi request reprint Structural covariance in the human cortex
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, London WC1N 3BG, United Kingdom
    J Neurosci 25:8303-10. 2005
    ..The coordinated variations we report are likely to be determined by both genetic and environmental factors and may be the basis for differences in individual behavior...
  10. ncbi request reprint Where bottom-up meets top-down: neuronal interactions during perception and imagery
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London, WC1N 3BG, UK
    Cereb Cortex 14:1256-65. 2004
    ..Additionally non-selective, top-down processes, originating in superior parietal areas, contribute to the generation of mental images, regardless of their content, and their maintenance in the 'mind's eye'...
  11. ncbi request reprint A dynamic causal modeling study on category effects: bottom-up or top-down mediation?
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, London, UK
    J Cogn Neurosci 15:925-34. 2003
    ..These findings indicate that category effects in the occipital and temporal cortex can be mediated by bottom-up mechanisms-a finding that needs to be embraced by models of category specificity...
  12. pmc Neuroanatomical markers of speaking Chinese
    Jenny T Crinion
    Wellcome Trust Centre for Neuroimaging, University College London, United Kingdom
    Hum Brain Mapp 30:4108-15. 2009
    ..On the basis of prior studies, we suggest that the locations of these gray and white matter changes in speakers of a tonal language are consistent with a role in linking the pitch of words to their meaning...
  13. ncbi request reprint A report of the functional connectivity workshop, Dusseldorf 2002
    Lucy Lee
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, London WC1N 3BG, UK
    Neuroimage 19:457-65. 2003
    ....
  14. ncbi request reprint Reading and reading disturbance
    Cathy J Price
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12, Queen Square, London, WC1N 3BG, UK
    Curr Opin Neurobiol 15:231-8. 2005
    ..Together, these findings have implications for cognitive models of reading that have previously relied on input from behavioural data...
  15. ncbi request reprint The Functional Brain Connectivity Workshop: report and commentary
    Lucy Lee
    Functional Imaging Laboratory, Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London WC1N 3BG, UK
    Network 14:R1-15. 2003
    ....
  16. ncbi request reprint Anatomical traces of vocabulary acquisition in the adolescent brain
    HweeLing Lee
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 27:1184-9. 2007
    ..Together, these analyses highlight the cognitive and anatomical mechanisms that mediate an essential language skill...
  17. ncbi request reprint Effective connectivity and intersubject variability: using a multisubject network to test differences and commonalities
    Andrea Mechelli
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London, WCIN 3BG, United Kingdom
    Neuroimage 17:1459-69. 2002
    ..The discussion focuses on the implications of our findings and on further applications of the multisubject network analysis...
  18. ncbi request reprint Brain activation for lexical decision and reading aloud: two sides of the same coin?
    Manuel Carreiras
    Universidad de La Laguna, Tenerife, Spain
    J Cogn Neurosci 19:433-44. 2007
    ..We attribute these effects to differences in the demands on speech production and decision-making processes, respectively...
  19. doi request reprint Fronto-temporal interactions during overt verbal initiation and suppression
    Paul Allen
    Division of Psychological Medicine and Psychiatry, Institute of Psychiatry, King s College London, London, UK
    J Cogn Neurosci 20:1656-69. 2008
    ....
  20. ncbi request reprint Misattribution of speech and impaired connectivity in patients with auditory verbal hallucinations
    Andrea Mechelli
    Division of Psychological Medicine, Section of Neuroimaging, King s College London, London, SE5 8AF, United Kingdom
    Hum Brain Mapp 28:1213-22. 2007
    ..Although this finding is based on external rather than internal speech, the same mechanism may contribute to the faulty appraisal of inner speech that putatively underlies AVH...
  21. ncbi request reprint Anterior temporal cortex and semantic memory: reconciling findings from neuropsychology and functional imaging
    Timothy T Rogers
    MRC Cognition and Brain Sciences Unit, Cambridge, England, USA
    Cogn Affect Behav Neurosci 6:201-13. 2006
    ..Critically, in patients with atrophy in precisely these areas, the most pronounced deficit was in the retrieval of specific semantic information...
  22. ncbi request reprint Exact and approximate judgements of visual and auditory numerosity: an fMRI study
    Manuela Piazza
    Institute of Cognitive Neuroscience, University College London, London, UK
    Brain Res 1106:177-88. 2006
    ..Counting activates additional left prefrontal, parietal, and bilateral premotor areas, again independently from stimulus modality. These results dissociate two neuronal systems that underlie different numerosity judgements...
  23. pmc Dissociating stimulus-driven semantic and phonological effect during reading and naming
    Andrea Mechelli
    Institute of Psychiatry, King s College London, London, United Kingdom
    Hum Brain Mapp 28:205-17. 2007
    ..In conclusion, this study dissociates the effects of semantic and phonological relatedness between successive items during reading and naming aloud...
  24. pmc Effect of word and syllable frequency on activation during lexical decision and reading aloud
    Manuel Carreiras
    Universidad de La Laguna, Tenerife, Spain
    Hum Brain Mapp 27:963-72. 2006
    ..Specifically, words with high-frequency syllables may increase lexical competition in the inferior temporal lobe while facilitating articulatory planning in the left anterior insula...
  25. ncbi request reprint Semantic relevance explains category effects in medial fusiform gyri
    Andrea Mechelli
    Institute of Psychiatry, King s College London, 103 Denmark Hill, London SE5 8AF, UK
    Neuroimage 30:992-1002. 2006
    ..It also suggests that increased activation in the medial fusiform gyrus typically found for artefacts > animals can be explained by different semantic relevance for animal and artefact items...
  26. ncbi request reprint Fusiform activation to animals is driven by the process, not the stimulus
    Timothy T Rogers
    MRC Cognition and Brain Sciences, Cambridge, UK
    J Cogn Neurosci 17:434-45. 2005
    ..Apparent category effects arise because, at an intermediate level of specificity, animals have more visual and semantic competitors than do artifacts...
  27. ncbi request reprint More than words: a common neural basis for reading and naming deficits in developmental dyslexia?
    Eamon J McCrory
    Department of Psychology, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, U
    Brain 128:261-7. 2005
    ..Our investigation points to a common neurological basis for deficits in word reading and picture naming in developmental dyslexia...
  28. ncbi request reprint The importance of distributed sampling in blocked functional magnetic resonance imaging designs
    Dick J Veltman
    PET Center, Vrije Universiteit Medical Center De Boelelaan 1117, Amsterdam, The Netherlands
    Neuroimage 17:1203-6. 2002
    ..These effects, induced by simply shifting stimulus presentation by a fraction of the interscan interval, suggest that fixed sampling does indeed bias estimated responses, even in blocked designs...
  29. ncbi request reprint Are subitizing and counting implemented as separate or functionally overlapping processes?
    Manuela Piazza
    Institute of Cognitive Neuroscience, London, United Kingdom
    Neuroimage 15:435-46. 2002
    ..Results speak against the idea of the two processes being implemented in separable neural systems...
  30. ncbi request reprint Exploring brain connectivity: a new frontier in systems neuroscience. Functional Brain Connectivity, 4-6 April 2002, Dusseldorf, Germany
    Narender Ramnani
    Centre for fMRI of the Brain, University of Oxford, UK
    Trends Neurosci 25:496-7. 2002
    ..Functional Brain Connectivity, held on 4-6 April 2002, Dusseldorf, Germany...