[evolve2017]

To the moderators, the title would be more accurate with 'fMRI' as opposed to 'MRI'. The latter is typically used to examine structural brain elements, whereas fMRI is thought to correlate with brain activity and, by extension, thought.

Confusing the two would lead to the more unusual conclusion that suicidal ideation is associated with abnormal brain connectivity, while the authors are instead focusing on neuronal activity.

[mintplant]

Specifically fMRI measures blood flow across the brain (the BOLD response) which is correlated with neuron activity. It has good spatial resolution but poor temporal resolution [0], compared to EEG which gives you good temporal resolution but poor spatial resolution.

[0] i.e. you know with precision where in the brain activity occurred, but less precisely when it occurred in time

[topgear25]

I didn't even really realize I had these confused until you pointed it out. This makes a lot more sense and helps me understand the results. At first I was confused at how brain structure analysis predicted suicidal tendencies/thoughts.