TABLE 3

Analysis of variance of headless behaviors

TraitEffectaMean squareFP
HindgroomingLine1.554.32<0.0001
GraspingLine4.1110.12<0.0001
RightingLine7.375.23<0.0001
QuiveringLine0.311.660.1051
Overall activityLine9.346.36<0.0001
Vial(Line)1.472.66<0.0001
Error0.55
Post-nicotine activityLine4.451.960.0487
Vial(Line)2.272.35<0.0001
Error0.97
Post-octopamine activitybLine6.330.790.65
Vial(Line)8.085.81<0.0001
Error1.39
  • a Degrees of freedom: Line, 11; Vial(Line), 60; Error, 648. For the individual behaviors, vial effects are all highly significant (P < 0.0001).

  • b Post-nicotine activity measured in same near-isofemale lines as for overall activity; post-octopamine activity measured on a different set of 12 isogenic lines.