Yep! At these fields, the effects of shaking your head around an MRI machine are:
- Dizziness/vertigo/headache: AC: typical thresholds is 2T/s for 1 s. DC mechanism: differential susceptibility of vestibular structures (46 T2/m perceived 1% g)
- Acidic/metallic taste: provoked presumably by electrolytic reactions due to eddy currents in the tongue, effect felt by 15% of test subjects @3T. Threshold dB/dt2.3 T/s (e.g. shaking head @ 0.6 Hz in a 0.5 T fringe field). May be contrasted by opening the mouth.
- Magnetophosphenes: perceived flickering lights caused by electrical stimulation of the retina/optical nerve. (0.2 mV). Threshold dB/dt 2T/s for 50 mS (max. sensitivity 20 Hz)
- Dizziness/vertigo/headache: AC: typical thresholds is 2T/s for 1 s. DC mechanism: differential susceptibility of vestibular structures (46 T2/m perceived 1% g)
- Acidic/metallic taste: provoked presumably by electrolytic reactions due to eddy currents in the tongue, effect felt by 15% of test subjects @3T. Threshold dB/dt2.3 T/s (e.g. shaking head @ 0.6 Hz in a 0.5 T fringe field). May be contrasted by opening the mouth.
- Magnetophosphenes: perceived flickering lights caused by electrical stimulation of the retina/optical nerve. (0.2 mV). Threshold dB/dt 2T/s for 50 mS (max. sensitivity 20 Hz)
(source in my other comment)