The effects of adsorbed amphiphilic polymers on the electrical percolation and light-scattering behavior of aerosol-OT/ heptane/water reverse microemulsions were investigated. In this study, a comb-like polymer (polymaleic anhydride octyl vinyl ether) was found to lower the electrical percolation temperature threshold while a block copolymer (polybutadiene-polyethylene oxide) was found to have the opposite effect. Dynamic light-scattering studies of the polymer-reverse microemulsion systems indicated that the spherical droplet structure was maintained in the presence of the adsorbed polymers. Based on considerations for polymeraerosol-OT interactions and packing, a model is presented for the possible microstructure of the polymer-reverse microemulsion complexes.