Table 1.

Mean ± s.d. of tongue angles in each quadrant for six individuals of Phrynomerus bifasciatus, together with the results of a t-test examining the effect on aiming after right unilateral M. genioglossus denervation on one individual

IndividualQuadrant A (—105° to —46°)Quadrant B (—45° to —6°)Quadrant C (—5° to +5°)Quadrant D (+6° to +45°)Quadrant E (+46° to +105°)
Normal
1—57.0±10.9—33.8±8.50.4±0.5+32.2±8.4+62.0±14.8
2—51.2±3.0—32.8±8.90.8±0.8+32.4±6.1+57.8±4.3
3—60.0±1.4—33.0±3.42.0±2.1+37.3±4.6+67.5±20.0
4—60.2±18.2—36.4±6.90.2±0.4+32.6±3.5+84.2±21.3
5—52.2±5.6—30.4±8.21.0±1.4+35.4±8.1+51.0±5.5
6—55.3±11.4—30.5±9.50.8±1.3+36.8±5.1+62.3±6.3
After right unilateral M. genioglossus denervation
3+30.0±16.5*+38.0±9.4*+34.6±4.0*+38.6±5.9+64.3±19.0
  • * Aiming was significantly (P<0.05) affected in quadrants A, B and C, in which the tongue consistently deviated towards the intact side (animal's right side)