# contrast                                          estimate    SE  df t.ratio p.value
# near - far,constant - near - far,pulsed_nofood       1.003 0.534 124 1.878   0.1475
# near - far,pulsed_food - near - far,pulsed_nofood    1.698 0.625 124 2.718   0.0201
# near - far,pulsed_food - near - far,constant         0.695 0.510 124 1.363   0.3604
#
# Results are given on the log (not the response) scale.
# P value adjustment: mvt method for 3 tests