Fig. 1.

Physical characteristics and neurological screening. a-h General health and neuromuscular strength tests. Bodyweight (a, e), body temperature (b, f), neuromuscular strength determined by the grip strength test (c, g), and that determined by the wire hang test (d, h) are shown. i, j Rotarod test. k, l Hot plate test. n indicates the number of individuals tested. p values were determined as described in Methods