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 analysed by multidimensional scaling. Analysis by multidimensional scaling suggests that at 25 degrees C odorants are grouped according to their odor qualities in the turtle olfactory system. At 37 degrees C, the cluster formation of odorants, which have a similar odor quality,such as minty and floral alcohol odorants and molecular structure, in the plot of multidimensional scaling was poor, indicating that the ability of odor grouping according to their odor qualities was low at 37 degrees C.
Kashiwayanagi
M
M
Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.
Nagasawa
F
F
D000222:Adaptation, Physiological / Q000502:physiology; D000818:Animals; D004192:Discrimination, Psychological / Q000187:drug effects / Q000502:physiology*; D009812:Odorants / Q000032:analysis; D009830:Olfactory Bulb / Q000502:physiology; D009831:Olfactory Mucosa / Q000502:physiology; D012903:Smell / Q000187:drug effects*; D013268:Stimulation, Chemical; D013696:Temperature; D014426:Turtles / Q000502:physiology*