For questions about methodology and tools related to functional magnetic resonance imaging. For general questions about brain-structure use neurobiology, and for general imaging questions use neuroimaging.

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4
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1answer
29 views

Is there a good entry-level tutorial for SPM?

The title pretty much says it all. I need to do some fMRI data analysis and I can't find any entry-level tutorials for Statistical Parameter Mapping (SPM). I've looked at some of the videos on the ...
2
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1answer
47 views

What does fMRI measure exactly

It is true that blood flows to wherever the brain is most activated and does fMRI measure the blood flow inside of the brain through oxygen content?
2
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1answer
43 views

Finding consciousness through EEG

I've read an article about the consciousness in vegetative patients. Adrian Owen is one of the neuroscientist making research on this field. The article published on "Le scienze" was about the usage ...
3
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1answer
31 views

Are there any fMRI decoding papers examining the relationship between attentional cueing and activity in V1?

I'm interested in reading on the influence of exogenous attention on cortical representations in early visual areas, but so far my google-fu seems to be failing me. There seems to be some literature ...
6
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0answers
30 views

Why *fractional* anisotropy?

Does anyone know why the FA (fractional anisotropy) measure in diffusion tensor imaging is called "fractional"? I'd have thought "local", i.e. voxel-wise, would have been the correct way to qualify ...
1
vote
0answers
76 views

Is there a correlation between brain size and amount of sleep?

As far as we know, sleep seems to be the part of the daily cycle when executive functions are resting and memories are fortifying. Many, but not all, of the functions that become dysfunctional upon ...
4
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1answer
96 views

MRI images upside-down in FSLVIEW

I'm visualizing structural data in FSLVIEW, but the sagittal and coronal planes are both upside-down / not in the conventional orientation, i.e. rotated by 90º and 180º. I understand that this ...
5
votes
2answers
197 views

Open fMRI data (or, collaborators)?

Are there any open fMRI datasets available on the internet? Experimental design doesn't matter much, since I would be working towards a new data analysis method. If the distributed data has been ...
3
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1answer
126 views

What are new and exciting research areas or applications in systems neuroscience? [closed]

Like the title says, what are new and exciting research areas or applications in systems neuroscience? I know the question is a broad one, so let me narrow it down a bit: I will get my master's ...
5
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1answer
67 views

Is there any fMRI evidence for different “states of mind”?

If you've seen a snickers commercial, it goes something like "you are a different person when you are hungry". I'm interested if the person's brain actually looks different when observed through fMRI ...
4
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1answer
43 views

Is it reasonable to have a factor with only two levels in a carry-over design for an fMRI study?

I'm planning a carry-over design for an fMRI study. To save time, since it seems that I'll need a huge number of trials for my purpose, I'm wondering if it's reasonable to have a matrix 2x3x3, ...
9
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2answers
545 views

Plotting publication-quality ball-and-stick models of brain connectivity in 3D

I'm working on brain imaging (fMRI) and I'm looking for a way to plot brain effective connectivity (dynamic causal modeling) parameters between different brain regions in a 3D plot. The plotting ...
9
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2answers
291 views

What are different ways to determine centroids of fMRI activation, their drawbacks and perks?

I'm reading an older article on bilingualism (Kim, Relkin, Lee, & Hirsch, 1997) for a seminar. They were interested in the spatial separation of two languages in early and late bilinguals. They ...