Complex sentence: The specific pulseform used appears to be an important factor for the behavioural effect seen; for example, a pulsed magnetic field originally designed for spectroscopic MRI was found to alleviate symptoms in bipolar patients, Rohan et al., 2004 while another MRI pulse had no effect.
Split into simpler sentences: The specific pulseform used appears to be an important factor for the behavioural effect seen. For instance, a pulsed magnetic field originally designed for magnetic resonance spectroscopic imaging was found to alleviate symptoms in bipolar patients (Rohan et al., 2004), while another MRI pulse had no effect.