Implementing gene expression to study drug action in the central nervous system is complicated by functional heterogeneity because of the existence of many different neuronal subtypes within the mammalian brain. MEANS FOR SOLVING PROBLEMS A speech recognition language model making system comprises a probability estimating device, a language model learning corpus storage device, and a learning corpus emphasizing device. The function then returns a result indicating that the function did not perform as expected. The reception side designating portion 355 designates the reception side of a speech packet transmitted from the telephone terminal 40.