Understanding the changes in microstructure during processing is the imperative requirement for process development and parameter optimisation. In the present study, the chance of applicability of electrical pulse-supported deformation of an Mg alloy is investigated. For Mg samples with sharp crystallographic textures room temperature compression tests were carried out along different specimen directions with and without the application of millisecond long electrical pulses with currents in the order of 600 A/mm². Firstly, using intricate ingenious electron backscatter diffraction-based texture analyses, we showed that the introduction of electrical pulsing increases the density of extension twinning in Mg alloys and significantly changes the texture. This observation implies that the activation of twinning becomes easier during electrical pulsing. In a second analysis, the nature of activated slip systems was investigated using local crystal lattice rotation analyses and controlled electron channelling contrast imaging (cECCI). The results demonstrate the difference in the slip behaviour due to the application of electrical pulses during deformation. Electrical pulse applications incorporate more homogeneous deformation and reduced flow stress. We attributed the observed changes to the "hot spot" theory indicating local heating of defects by the electric current and to a high thermal-induced strain rate caused by constrained macroscopic thermal expansion. Further study will be directed to isolate these two effects and come up with optimised parameters for electrically assisted deformation.