Neck Flexion Induces Larger Deformation of the Brain Than Extension at a Rotational Acceleration, Closed Head Trauma

Figure 4

Repeated pressure recordings in animal number 12 ((a), (b)) and animal number 17 ((c), (d)) with sensors kept at the same locations in the brain parenchyma throughout a series of repeated consecutive low level sagittal plane flexion rotational acceleration exposures. Recordings from the basal ganglia (left) and the brainstem (BS; right). Close to the same pressure, patterns are recorded, but larger amplitudes are obtained at the first exposures. See Figure 8 for statistical analyses.

(a)

(b)

(c)

(d)