Archive for April, 2009

The Dangers of Double Dipping (Voodoo IV)

A new article discussing non-independence errors has arrived on the scene, and it is quite good. Nikolaus Kriegeskorte, Kyle Simmons, Patrick Bellgowan, and Chris Baker have authored a Nature Neuroscience paper called ‘Circular analysis in systems neuroscience: the dangers of double dipping‘. It is the same fundamental argument as the original Voodoo Correlations paper (now […]

April 30, 2009 • Posted in: CogNeuro, MRI, Statistics • 2 Comments

Matlab finite() function warnings

The latest version of Matlab deprecated the finite() function in favor of isfinite(). This is all fine and dandy in terms of improving the scripting language, but this change currently causes a crapalanche of warnings to be thrown as you use SPM. Usually along the lines of: Warning: FINITE is obsolete and will be removed […]

April 29, 2009 • Posted in: Miscellany, MRI, Statistics • 1 Comment

Pacific Rim Neuroimaging 2009 Review

I just recently returned from the “New Horizons in Human Brain Imaging: A Focus on the Pacific Rim” conference in Waikoloa, Hawaii. Here are some of the highlights: – Kang Cheng showed some amazing results from high-resolution fMRI of visual cortex. He described some of the technical difficulties that he and his team have encountered […]

April 25, 2009 • Posted in: CogNeuro, MRI • No Comments

The OHBM has been good to me

Just got word that I was given a travel award for the Human Brain Mapping conference in June: http://ric.uthscsa.edu:9000/TravelAwards/awardees.html This year’s HBM conference is shaping up to be rather epic. I have two abstracts accepted for poster presentations, one of which was chosen for an oral presentation later that weekend. Now they are even giving […]

April 20, 2009 • Posted in: CogNeuro, Meta • No Comments

Using Caret for fMRI Visualization

Caret is an incredibly useful program for the calculation and visualization of brain data. Like most incredibly useful programs it is also quite complex and a bit daunting to approach. While looking at three-views is a staple of fMRI research, sometimes it is easier to get the ‘big picture’ from a cortical surface rendering. I […]

April 8, 2009 • Posted in: CogNeuro, MRI • 4 Comments

Quote of the Week – Curie

“I am among those who think that science has great beauty. A scientist in his laboratory is not only a technician: he is also a child placed before natural phenomena which impress him like a fairy tale.” – Marie Curie

April 4, 2009 • Posted in: Quotes • No Comments