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Fig. 3 | BMC Neuroscience

Fig. 3

From: Effects of transcranial focused ultrasound on human primary motor cortex using 7T fMRI: a pilot study

Fig. 3

a 7T anatomical T1 (left, middle) and functional EPI image showing ultrasound transducer. b Overlay of functional MRI thumb activation and acoustic model of the ultrasound beam on subject anatomical T1 scan. Note in right image ultrasound beam is purposefully displaced from the fMRI thumb activation to better show relative size compared to fMRI activation. c Blowup of single subject fMRI BOLD finger representations with overlaid acoustic model that is purposefully displaced to show relative size of ultrasound beam to fMRI activations. For experiments, tFUS would have been placed directly over the thumb activation

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