Can the directionality of BOLD activity, as measured using fMRI, provide meaningful information at a very fine scale? In a recent paper, published in the journal Cerebral Cortex, Nicolas Gravel and colleagues show that it does. Using advanced models, they were able to show task-related activity that is informative of the feedforward, lateral and feedback processing taking place between the different visual field maps in the early visual cortex. These models may help future studies to reveal the brain’s code underlying our perception and behavior. Want to know more? You can find the paper here.
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