ANALYSIS OF ODOR DISCRIMINATION BY MULTIDIMENSIONAL-SCALING AT DIFFERENT TEMPERATURES

Discrimination of odorants by the turtle olfactory bulb at 25 degrees and 37 degrees C was examined by the cross-adaptation technique and an alysed by multidimensional scaling. Analysis by multidimensional scali ng suggests that at 25 degrees C odorants are grouped according to the ir odor qualities in the turtle olfactory system. At 37 degrees C, the cluster formation of odorants, which have a similar odor quality, suc h as minty and floral alcohol odorants and molecular structure, in the plot of multidimensional scaling was poor, indicating that the abilit y of odor grouping according to their odor qualities was low at 37 deg rees C.