ship's Holtzman Drive generators While the right hemisphere dropped the ship into The Void at the spice-directed exact moment the left hemisphere navigated by shifting mass-compensators mounted on a universal gear The Golden Advent reached the test destination on schedule but Cevna suffered increas ingly (and silently) from the strain imposed by her dual roie, as the others on board thought The real cause was much worse electrical "rmnicharges' were sympathetical ly induced in her brain by the implanted electrodes, and her spice prescience caused her to 'foresee, ' albeit subconsciously the trauma Ihese charges would cause The physio logical effects are a matter of medical conjecture, but experiments on laboratory animals suggest that in such a situation spice-awareness causes functions to be shunted from one hemisphere to the other in an attempt to maintain the functions and to minimize damage But Ce\na s constant connection made a feedback loop unavoidable and the condition spiraled upward in intensity When the return voyage was nearly completed Cevna went into convulsions like those of grand mal epilepsy Venport had to drop the ship into normal space and complete its return on back-up systems Doctors on Tupile eventually diagnosed her condition as induced cortical epilepsy but her seizures continued despite their best treatments As a last resort, they separated the two hemispheres by cutting the corpus callosum to halt the continued shifting of functions The seizures stopped but Cevna s CHAKOBSA 155 CHAKOBSA abilities were permanently crippled She fell into depression and retired from active life, when Venport failed to return from his test flight of 79 B G , she declined rapidly and died the following year Norma Cevna's contributions to the Spac ing Guild cannot be overestimated Although little remains of her onginal designs, she showed that melange could stimulate the human mind to replace the forbidden computers To gain this knowledge, she paid the greatest possible price Further references SPACING GUILD FOUNDATION SPAC ING GUILD OPERATIONS INTERSTELLAR FLIGHT PRE-OU1LD VENPORT AURELIUS Anon AnrebonMemoirs Lib Conf Temp Series 684 CHAKOBSA.