Jerusalem's Hadassah Hospital, where Israeli Prime Minister Ariel Sharon was hospitalized, has confirmed that an electroencephalogram showed activities in both Sharon's brain lobes.

There was no expansion of ventricle walls after the removal of a drainage catheter, the hospital said in a statement issued Saturday night.

The statement said Sharon's condition still remains serious but stable, adding Sharon's pulse, respiration, blood pressure and body temperature remained "sound and stable".

Earlier on Saturday, local newspaper Ha'aretz reported on its online edition that electroencephalogram showed activity in Sharon's both brain lobes.

Sharon has responded to pain stimuli in both sides of his body, said the report.

The prime minister remains unconscious and is not showing any signs that he is regaining consciousness, although doctors have been trying to get him out of his induced coma since Monday.

The doctors have been gradually lessening the dosage of the sedatives Sharon has been receiving in the wake of the massive stroke and cerebral hemorrhage he underwent on Jan. 4.

Sharon continues to be hooked up to a respirator, while also breathing on his own, and his life continues to be in danger, physicians at Hadassah Hospital said.

Sharon's brain scan Thursday evening showed positive results, indicating that the remnants of the blood in his brain from last week's massive stroke have been absorbed.

In response the brain scan results, doctors removed a tube that they had inserted into Sharon's skull to relieve pressure on his brain.

Sharon's doctors also said that his heart activity was regular.

Sources familiar with the treatment said that Sharon had suffered a disorder in his heartbeat rate, but it was treated immediately and did not cause a dramatic change in his condition.