The perceived blur of drifting sinusoidal gratings was compared to that of static, blurred "square wave" gratings before and after adaptation to a missing fundamental (MF) pattern. The results indicate that the perceived blur of a drifting sine grating is inversely related to its drift speed. However, after adaptation to a MF pattern, this effect is reduced. The adaptation effect is most profou...

Abstract Force-free current sheets are local plasma structures with field-aligned electric currents and approximately uniform pressures. Such structures, widely found throughout the heliosphere, sites for instabilities magnetic reconnection, growth rate of which is controlled by structure’s current-sheet configuration. Despite fact that many kinetic equilibrium models have been developed one-di...