Functional Imaging – mri.sbollmann.net

Imaging of the pial arterial vasculature of the human brain in vivo using high-resolution 7T time-of-flight angiography

Our latest work is out in eLife: https://elifesciences.org/articles/71186 We show how small pial arteries can be targeted effectively with high-resolution in vivo MR imaging. The data is openly available (https://doi.org/10.17605/OSF.IO/NR6GC) and may be used for building models of brain physiology. The pial arterial vasculature of the human brain is the Read more…

By Saskia Bollmann, 3 yearsJune 16, 2022 ago

Functional Imaging

Higher, faster, smaller: Pushing the limits of fMRI at ultra-high field

Today I had the pleasure of presenting in the fortnightly Melbourne Brain Centre Imaging Unit (MBCIU) seminar at the University of Melbourne. I took the opportunity to share some thoughts and insights about fast and high-resolution fMRI at 7T. This presentation covers some of the most prevalent sequences (SMS, 3D-EPI), Read more…

By Saskia Bollmann, 3 yearsAugust 27, 2021 ago

Functional Imaging

Fast fMRI Acqusitions and Analyses – Spinoza User Meeting

I was invited to present my view on fast fMRI acquisitions and analyses at the Spinoza User Meeting (Spinoza Centre for Neuroimaging, Amsterdam, Netherlands) in May 2021. Below you can find the slides, which I hope are a useful resource summarizing what’s currently available and what acquisitions might become possible Read more…

By Saskia Bollmann, 4 yearsMay 31, 2021 ago

Conferences

2020 Australian Ultra High Field Network Virtual Workshop

The Australian ultra-high field community had its first virtual workshop organized by Leigh Johnston, Markus Barth and Kieran O’Brien. I was invited to talk about high-resolution fMRI and how it is currently used for neuroscience research. I thought I share the slides of my talk, which summarizes some of our Read more…

By Saskia Bollmann, 4 yearsOctober 21, 2020 ago

Containers

Containers for neuroscience at OHBM Brainhack Trainhack 2020

Tom Shaw and I prepared a talk for this year’s OHBM Brainhack Trainhack where we show what containers are and how to use them for neuroscience applications. We cover docker and singularity and show how to build and run containers on different computing platforms. Video: Code to hack along: https://hackmd.io/ep87sx8ERMWFYc4D0FisRw Read more…

By Steffen, 5 yearsJune 17, 2020 ago

Code

Non-linear Realignment Using Minimum Deformation Averaging for Single-subject fMRI at Ultra-high Field

Motion dominates the contribution to variance in fMRI time series and it is therefore important to account for this variability correctly. Currently, most correction schemes use a rigid body realignment procedure, but interactions with magnetic field inhomogeneities and physiological fluctuations lead to non-linear deformations. Non-linear realignment increased spatial resolution by Read more…

By Steffen, 8 yearsJune 19, 2017 ago

Functional Imaging

Age-dependent and -independent changes in attention-deficit/hyperactivity disorder (ADHD) during spatial working memory performance

Our latest paper looking at spatial working memory in ADHD was published: http://www.tandfonline.com/doi/full/10.3109/15622975.2015.1112034

By Steffen, 9 yearsDecember 12, 2015 ago

Functional Imaging

fMRI in context: Paradigm to practice

This talk was part of the 2015 fMRI course at the Centre for Advanced Imaging, University of Queensland, Brisbane, Australia Contents: the problems of p-values reproducibility problems questionable research practices and how to avoid them

By Steffen, 9 yearsNovember 13, 2015 ago

Functional Imaging

The GLM, experimental design and efficiency

This talk was part of the 2015 fMRI course at the Centre for Advanced Imaging, Brisbane, Australia Contents: The General Linear Model Statistical Inference How to estimate the efficiency of a design? This matlab code helps computing the design efficiency: https://github.com/stebo85/DesignEfficiency

By Steffen, 9 yearsNovember 2, 2015 ago