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- Publications
- Influence
Nonlinear Responses in fMRI: The Balloon Model, Volterra Kernels, and Other Hemodynamics
- Karl J. Friston, A. Mechelli, R. Turner, C. Price
- Medicine, Psychology
- NeuroImage
- 1 October 2000
There is a growing appreciation of the importance of nonlinearities in evoked responses in fMRI, particularly with the advent of event-related fMRI. These nonlinearities are commonly expressed as… Expand
Comparing dynamic causal models
- W. Penny, K. Stephan, A. Mechelli, Karl J. Friston
- Mathematics, Computer Science
- NeuroImage
- 1 July 2004
TLDR
Voxel-based morphometry of the human brain: Methods and applications
- A. Mechelli, C. Price, Karl J. Friston, J. E. Ashburner
- Medicine
- 31 May 2005
In recent years, a whole-brain unbiased objective technique, known as voxel-based morphometry (VBM), has been developed to characterise brain differences in vivo using structural magnetic resonance… Expand
Structural Covariance in the Human Cortex
- A. Mechelli, Karl J. Friston, R. Frackowiak, C. Price
- Biology, Medicine
- The Journal of Neuroscience
- 7 September 2005
The morphology of the human cortex varies remarkably across individuals, regardless of overall brain size. It is currently unclear whether related cortical regions covary in gray matter density, as a… Expand
Neurolinguistics: Structural plasticity in the bilingual brain
- A. Mechelli, J. Crinion, +4 authors C. Price
- Medicine, Biology
- Nature
- 14 October 2004
Humans have a unique ability to learn more than one language — a skill that is thought to be mediated by functional (rather than structural) plastic changes in the brain. Here we show that learning a… Expand
Anterior temporal cortex and semantic memory: Reconciling findings from neuropsychology and functional imaging
- T. Rogers, J. Hocking, +4 authors C. Price
- Psychology, Medicine
- Cognitive, affective & behavioral neuroscience
- 1 September 2006
Studies of semantic impairment arising from brain disease suggest that the anterior temporal lobes are critical for semantic abilities in humans; yet activation of these regions is rarely reported in… Expand
Dysconnectivity in schizophrenia: Where are we now?
- W. Pettersson-Yeo, P. Allen, S. Benetti, P. Mcguire, A. Mechelli
- Psychology, Medicine
- Neuroscience & Biobehavioral Reviews
- 1 April 2011
The disconnection hypothesis suggests that the core symptoms of schizophrenia (SZ) are related to aberrant, or 'dys-', connectivity between distinct brain regions. A proliferation of functional and… Expand
The hubs of the human connectome are generally implicated in the anatomy of brain disorders
- N. Crossley, A. Mechelli, +4 authors E. Bullmore
- Medicine, Psychology
- Brain : a journal of neurology
- 19 June 2014
See Sporns (doi:10.1093/brain/awu148) for a scientific commentary on this article. Brain networks contain a minority of highly connected hub nodes with high topological value and biological cost.… Expand
Modelling functional integration: a comparison of structural equation and dynamic causal models
- W. Penny, K. Stephan, A. Mechelli, Karl J. Friston
- Computer Science, Medicine
- NeuroImage
- 31 December 2004
TLDR
Dissociating Reading Processes on the Basis of Neuronal Interactions
- A. Mechelli, J. Crinion, +5 authors C. Price
- Computer Science, Psychology
- Journal of Cognitive Neuroscience
- 1 November 2005
TLDR