| Electro-olfactography |
Electro-olfactography or electroolfactography (EOG) is a type of electrography (electrophysiologic test) that aids the study of olfaction (the sense of smell). It measures and records the changing electrical potentials of the olfactory epithelium, in a way similar to how other forms of electrography (such as ECG, EEG, and EMG) measure and record other bioelectric activity.
Electro-olfactography has been used for decades to advance the basic science of smell,[1] [2] although the advances in molecular biology in recent decades have expanded olfactory science beyond the knowledge that the electrical recordings of electro-olfactography alone could provide. Electro-olfactography is closely related to electroantennography, the electrography of insect antennae olfaction.Neuroscientist David Ottoson (1918-2001) discovered the electro-olfactogram (EOG) and analysed its properties in great detail.