Doctors showed Ariel Sharon pictures of his heart and used other techniques . Sharon 's heart showed activity , but doctors warn against too much optimism . Doctors still trying to figure out what results mean . Sharon was a divisive figure in Israeli politics during his time as prime minister .
Doctors showed Ariel Sharon pictures of his family and used other stimuli . Sharon 's brain showed activity , but doctors warn against too much optimism . Doctors still trying to figure out what results mean . Sharon was a divisive figure in Israeli politics during his time as prime minister .