The present invention concerns a novel T1R-like ligand II protein. The method includes, receiving by a computer system an indication of a manual selection of a region proximate to an audience member of an audience wherein the indication is received via an interaction with a displayed image of the audience. The compounds of this invention are serotonin receptor modulators, in particular 5HT2C receptor agonists and antagonists, and are useful in the control or prevention of central nervous system disorders including obesity, anorexia, bulemia, depression, anxiety, psychosis, schizophrenia, migraine, addictive behavior, obsessive-compulsive disorder, and sexual disorders. In some cases, the mat may be operational as a shower mat and may have a top surface with a shape that defines a perimeter, and a bottom surface spaced apart from the top surface. The light source and the light receiving element are inclined with respect to the surface of the vehicle window such that the light of the light source directly reflected from the vehicle window exits to the outside of the light receiving element and the light reflected from a raindrop on the vehicle window is received by the light receiving element to operate a vehicle wiper.