[Changes in the functional activity of cortical brain structures and their blood supply during motion sickness in the alert rabbit].

In alert rabbits, sea sickness induced an increase in the cerebral blood supply, alteration of the ECoG frequency components, bradycardia, hypotension. Different responses of the bioelectrical activity were revealed in summer and winter. The enhancement of bioelectrical activity and blood flow in the motor cortex were shorter than in the auditory and visual areas. These changes become more obvious in repeated fits of sea sickness and gradually reduced later on. In winter, the responses of the rabbit electrophysiological parameters are more obvious and longer lasting than in summer. The blood supply parameters preserved in summer whereas the ECoG changes returned to initial values faster in summer.