Forelimb Use Asymmetry Analysis of Vertical Exploratory Activity After Intracerebral Hemorrhage in Rats and Mice - Animal Models of Acute Neurological Injuries: Injury and Mechanistic Assessments - page 654

Fig. 1. Vertical exploration of the cylinder wall during a full rear by a rat.

level needed to acquire at least 15 exploratory movements
(more than 20 leads to habituation).

3.2. Tabulating
the Behavior

1. Ipsilateral (I): Forelimb on the same side to brain injury, used
independently to either (a) contact cylinder wall during, a full
rear, weight shifting movement, to regain center of gravity, or
(b) for landing.
2. Contralateral (C): Forelimb on the opposite side to brain
injury, used independently to either (a) contact cylinder wall
during, a full rear, weight shifting movement, to regain center
of gravity, or (b) for landing.
3. Bilateral (B): Both forelimbs used to either (a) contact cylinder
wall during a full rear and during lateral movements along the
wall, or (b) for landing.
4. Both paws need to be removed from vertical wall surface before
another exploratory score may be given.

1. [(I + 1/2B)/(I + C + B)] × 100
2. Ipsilateral forelimb = (I); contralateral = (C); bilateral = (B)

3.3. Calculating
the FUA Score ( 8 )