A. C. Evans

Publication List Details

Period

1981 - 2006

Number

46

Co-Authors

Object-Based Strategy (2004)

D. Riviere, A. Cachia, D. Papadopoulos-orfanos, D. L. Collins, A. C. Evans

Most of the approaches dedicated to automatic morphometry rely on a point-by-point strategy based on warping each brain towards a reference coordinate system. In this paper, we describe an...

D Moment Invariant Based Morphometry (2004)

F. Poupon, D. Riviere, A. Cachia, D. L. Collins, A. C. Evans, ...

This paper advocates the use of shape descriptors based on moments of 3D coordinates for morphometry of the cortical sulci. These descriptors, which have been introduced more than a decade ago, are...

Object-Based Morphometry of the Cerebral Cortex (2004)

D. Riviere, A. Cachia, E. Duchesnay, Y. Cointepas, D. Papadopoulos-orfanos, ...

Most of the approaches dedicated to automatic morphometry rely on a point-by-point strategy based on warping each brain towards a reference coordinate system. In this paper, we describe an...

A Unified Statistical Approach to Deformation-Based Morphometry (2002)

J. L. Rapoport, A. C. Evans

this paper, we present a unified statistical framework for detecting brain tissue growth and loss is temporally varying brain morphology. As an illustration, we will demonstrate how the method can be...

Statistical Analysis of Cortical Surfaces (2000)

K. J. Worsley, A. C. Evans

Introduction Cortical surfaces can now be extracted from MRI images by surface segmentation and matching using 3D deformations (1). In this abstract we present methods for the statistical analysis of...

Detecting Anatomical Changes Using Logistic Regression of Structure Masks (2000)

J. Taylor, K. J. Worsley, A. P. Zijdenbos, T. Paus, A. C. Evans

Introduction Neuroscientists are often interested in determining whether external covariates are related to changes in brain shape. There are three main ways currently being used to determine...

A Unified Statistical Approach to Deformation-Based Morphometry (2000)

J. L. Rapoport, A. C. Evans

this paper, we present a unified statistical framework for detecting brain tissue growth and loss is temporally varying brain morphology. As an illustration, we will demonstrate how the method can be...

Detecting Changes In Non-stationary Images via Statistical Flattening (1999)

K. J. Worsley, M. Andermann, T. Koulis, D. Macdonald, A. C. Evans

ed residuals u i = r = q å r i Roughness L = Var( e i )=Var(e ) Estimate L = å u u 0 i Effective FWHM eFWHM = (4log2) =j Lj 2D If the image is stationary or `flat' then eFWHM should be constant;...

Detecting Changes In Non-stationary Images via Statistical Flattening (1999)

K. J. Worsley, M. Andermann, T. Koulis, D. Macdonald, A. C. Evans

ed residuals u i = r = q r i Roughness L = Var( e i )=Var(e ) Estimate L = u u 0 i Effective FWHM eFWHM = (4log2) =j Lj 2D If the image is stationary or `flat' then eFWHM should be constant;...

A Generalized Methodology for Partial Volume Correction in Emission Tomography (1998)

Y. Ma, O. Rousset, A. C. Evans

We describe a generic methodology to correct 3-D partial volume effects in clinical emission scans. It is based on prior knowledge of tracer biodistribution and tomographic imaging characteristics....

Applications of Random Field Theory to Functional Connectivity (1998)

K. J. Worsley, Maths Stats, J. Cao, T. Paus, M. Petrides, A. C. Evans

Functional connectivity between two voxels or regions of voxels can be measured by the correlation between voxel measurements from either PET CBF or BOLD fMRI images in 3D. We propose to look at the...

Searching Scale Space for Activation in PET Images (1995)

K. J. Worsley, S. Marrett, P. Neelin, A. C. Evans

PET images of cerebral blood flow (CBF) in an activation study are usually smoothed to a resolution much poorer than the intrinsic resolution of the PET camera. This is done to reduce noise and to...

Memory for object features versus memory for object location: a positron-emission tomography study of encoding and retrieval processes.

Owen, A M, Milner, B, Petrides, M, Evans, A C

Regional cerebral blood flow was measured with positron-emission tomography during two encoding and two retrieval tasks that were designed to compare memory for object features with memory for object...

Functional activation of the human ventrolateral frontal cortex during mnemonic retrieval of verbal information.

Petrides, M, Alivisatos, B, Evans, A C

Regional cerebral blood flow was measured with positron emission tomography during the performance of a verbal free recall task, a verbal paired associate task, and tasks that required the production...

The neural substrates underlying word generation: a bilingual functional-imaging study.

Klein, D, Milner, B, Zatorre, R J, Meyer, E, Evans, A C

We used positron emission tomography to investigate word generation in subjects whose first language was English but who were also proficient in French. These subjects performed three types of...

Dissociation of human mid-dorsolateral from posterior dorsolateral frontal cortex in memory processing.

Petrides, M, Alivisatos, B, Evans, A C, Meyer, E

Work with non-human primates had previously demonstrated that the mid-dorsolateral frontal cortex, which comprises cytoarchitectonic areas 46 and 9, plays a critical role in the performance of...

Functional activation of the human frontal cortex during the performance of verbal working memory tasks.

Petrides, M, Alivisatos, B, Meyer, E, Evans, A C

Regional cerebral blood flow was measured with positron emission tomography during the performance of verbal working memory tasks. The same type of verbal response (i.e., reciting numbers) was...

Atypical Papanicolaou Smear in Pregnancy

Connolly, Thomas P., Evans, A. C.

Atypical glandular cells (AGC) in Papanicolaou (Pap) smears can be associated with premalignant and malignant cervical and endometrial lesions. AGC is difficult to diagnose in pregnancy due to...

Memory for object features versus memory for object location: a positron-emission tomography study of encoding and retrieval processes.

Owen, A M, Milner, B, Petrides, M, Evans, A C

Regional cerebral blood flow was measured with positron-emission tomography during two encoding and two retrieval tasks that were designed to compare memory for object features with memory for object...

Functional activation of the human ventrolateral frontal cortex during mnemonic retrieval of verbal information.

Petrides, M, Alivisatos, B, Evans, A C

Regional cerebral blood flow was measured with positron emission tomography during the performance of a verbal free recall task, a verbal paired associate task, and tasks that required the production...

The neural substrates underlying word generation: a bilingual functional-imaging study.

Klein, D, Milner, B, Zatorre, R J, Meyer, E, Evans, A C

We used positron emission tomography to investigate word generation in subjects whose first language was English but who were also proficient in French. These subjects performed three types of...

Dissociation of human mid-dorsolateral from posterior dorsolateral frontal cortex in memory processing.

Petrides, M, Alivisatos, B, Evans, A C, Meyer, E

Work with non-human primates had previously demonstrated that the mid-dorsolateral frontal cortex, which comprises cytoarchitectonic areas 46 and 9, plays a critical role in the performance of...

Functional activation of the human frontal cortex during the performance of verbal working memory tasks.

Petrides, M, Alivisatos, B, Meyer, E, Evans, A C

Regional cerebral blood flow was measured with positron emission tomography during the performance of verbal working memory tasks. The same type of verbal response (i.e., reciting numbers) was...

Atypical Papanicolaou Smear in Pregnancy

Connolly, Thomas P., Evans, A. C.

Atypical glandular cells (AGC) in Papanicolaou (Pap) smears can be associated with premalignant and malignant cervical and endometrial lesions. AGC is difficult to diagnose in pregnancy due to...