Beam balance test

Beam balance tests were performed to measure the ability of mice to walk on a narrow cylindrical wooden beam at 24 h and 72 h after SAH in a blinded manner. Each mouse was placed on the beam and allowed to walk freely for 60 s. Then, the score was evaluated as follows: 0, no walking and falling; 1, no walking, but remains on the beam; 2, walking but falling; 3, walking less than 20 cm; 4, walking beyond 20 cm [28].