To determine the extent that distribution of responses established through reinforcement contingencies would be affected by motivational changes, 11 male rats were trained to manipulate a lever that could be displaced in any of 8 directions within a circular aperture. Both frequency (total number of contacts) and response topography (frequency of contact at various positions) were recorded. Groups were tested while experiencing (a) 0-44 hr. of food deprivation; (b) alternation between food and water deprivation; (c) 4-22 hr. of water deprivation; (d) differences in incentive quality-15%, 25%, and 45% sucrose solutions. Although total response frequency increased with increasing deprivation and incentive quality, recorded response topographies remained virtually invariant.