Every now and then we present auditory illusions on 60-Second Psych . Being an audio podcast about human perception, it's sort of the perfect match. [More]

It’s called functional magnetic resonance imaging, or fMRI. And some neuroscientists call it the greatest scientific advance of the last 25 years .  Because fMRI lets researchers look at the human brain in action.  By measuring blood flow, it produces colorful maps of the brain that display the actual activity of neurons--the brain at work. 

Sounds great, right? Well, there are criticisms . One is that it’s slow. The blood flow response can take 2-5 seconds, but a thought can flash in milliseconds.

It’s called functional magnetic resonance imaging, or fMRI. And some neuroscientists call it the greatest scientific advance of the last 25 years .  Because fMRI lets researchers look at the human brain in action.  By measuring blood flow, it produces colorful maps of the brain that display the actual activity of neurons--the brain at work. 

Sounds great, right? Well, there are criticisms . One is that it’s slow. The blood flow response can take two to five seconds, but a thought can flash in milliseconds.

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