Auditory driving works through a process known as entrainment. Said simply, entrainment is the synchronization of different rhythmic cycles. This suggests that the basis for the entrainment effects is electromagnetic rather than acoustical. Similarly, cryptochromes play an important role in the entrainment of circadian rhythms in plants. Buoyancy may be reduced by entrainment, which dilutes the parcel with environmental air. Signs of functional tremor include entrainment and distractibility. Kinesthetic driving works through a process known as entrainment. There are two general modes of entrainment&colon; phasic and continuous. It then weakened as wind shear increased and dry air entrainment occurred. Other factors may enhance or decrease the effectiveness of entrainment. The length of light exposure influences entrainment. The intensity and the wavelength of light influence entrainment. In order to maintain synchronization ("entrainment") to 24 hours, external factors must play some role. The rising bubbles create a current by the entrainment of the surrounding fluid. Suckdown is the result of entrainment of air around aircraft by lift jets when hovering.