User profiles for Leigh Johnston

Leigh A. Johnston

Department of Biomedical Engineering & Melbourne Brain Centre Imaging Unit, University …
Verified email at unimelb.edu.au
Cited by 4166

Performance analysis of a dynamic programming track before detect algorithm

LA Johnston, V Krishnamurthy - IEEE Transactions on …, 2002 - ieeexplore.ieee.org
We analyze a dynamic programming (DP)-based track before detect (TBD) algorithm. By using
extreme value theory we obtain explicit expressions for various performance measures of …

An improvement to the interacting multiple model (IMM) algorithm

LA Johnston, V Krishnamurthy - IEEE transactions on signal …, 2001 - ieeexplore.ieee.org
Computing the optimal conditional mean state estimate for a jump Markov linear system
requires exponential complexity, and hence, practical filtering algorithms are necessarily …

Characterization of the corpus callosum in very preterm and full-term infants utilizing MRI

DK Thompson, TE Inder, N Faggian, L Johnston… - Neuroimage, 2011 - Elsevier
The corpus callosum is the largest white matter tract, important for interhemispheric
communication. The aim of this study was to investigate and compare corpus callosum size, shape …

Sodium selenate reduces hyperphosphorylated tau and improves outcomes after traumatic brain injury

…, SJ Liu, M Sashindranath, RL Medcalf, LA Johnston… - Brain, 2015 - academic.oup.com
Traumatic brain injury is a common and serious neurodegenerative condition that lacks a
pharmaceutical intervention to improve long-term outcome. Hyperphosphorylated tau is …

The power of spectral density analysis for mapping endogenous BOLD signal fluctuations

EP Duff, LA Johnston, J Xiong, PT Fox… - Human brain …, 2008 - Wiley Online Library
FMRI has revealed the presence of correlated low‐frequency cerebro‐vascular oscillations
within functional brain systems, which are thought to reflect an intrinsic feature of large‐scale …

[HTML][HTML] A review of β-amyloid neuroimaging in Alzheimer's disease

…, DI Finkelstein, PM Desmond, LA Johnston… - Frontiers in …, 2014 - frontiersin.org
Alzheimer's disease (AD) is the most common cause of dementia worldwide. As advancing
age is the greatest risk factor for developing AD, the number of those afflicted is expected to …

Sodium selenate retards epileptogenesis in acquired epilepsy models reversing changes in protein phosphatase 2A and hyperphosphorylated tau

…, E Braine, T Nguyen, NM Corcoran, LA Johnston… - Brain, 2016 - academic.oup.com
There are no treatments in clinical practice known to mitigate the neurobiological processes
that convert a healthy brain into an epileptic one, a phenomenon known as epileptogenesis. …

[PDF][PDF] Preservation of vision by the pulvinar following early-life primary visual cortex lesions

CE Warner, WC Kwan, D Wright, LA Johnston… - Current Biology, 2015 - cell.com
Background Conscious vision is believed to depend upon an intact primary visual cortex (V1),
although injury in early life is often accompanied by the preservation of visual capacity, …

Filtering induces correlation in fMRI resting state data

CE Davey, DB Grayden, GF Egan, LA Johnston - Neuroimage, 2013 - Elsevier
Correlation-based functional MRI connectivity methods typically impose a temporal sample
independence assumption on the data. However, the conventional use of temporal filtering to …

Diffusion tensor imaging in Huntington's disease reveals distinct patterns of white matter degeneration associated with motor and cognitive deficits

…, A Sritharan, H Asadi, L Johnston… - Brain imaging and …, 2011 - Springer
White matter (WM) degeneration is an important feature of Huntington’s disease (HD)
neuropathology. To investigate WM degeneration we used Diffusion Tensor Imaging and Tract-…