Cristiano da Matta is now responding to external stimuli as he recovers from his crash last week.
Da Matta hit a deer in testing at Elkhart Lake, and has been under heavy sedation after being operated on for a form of traumatic brain injury.
"Cristiano's recovery from his head injury continues on a positive trend while still in the intensive care unit at Theda Clark Medical Center," said a statement.
"Most of his sedation has been removed and he now is moving all of his extremities spontaneously as well as in response to physical stimulation. We are pleased with Cristiano's progress so far and are hopeful he will continue daily improvement."
RuSport and Champ Car are to hold a joint press conference tomorrow ahead of this weekend's Denver race, to talk about the accident.
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