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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,[1] 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][3] 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.[1] Electro-olfactography is closely related to electroantennography, the electrography of insect antennae olfaction.[1] Neuroscientist David Ottoson (1918-2001) discovered the electro-olfactogram (EOG) and analysed its properties in great detail.[4]


  1. ^ a b c d Glatz, Richard, ed. (2015), Molecular Basis of Olfaction. Volume 130 of Progress in Molecular Biology and Translational Science, Academic Press, p. ix, ISBN 978-0128029138. 
  2. ^ Scott, JW; Scott-Johnson, PE (2002). "The electroolfactogram: a review of its history and uses". Microsc Res Tech. 58 (3): 152-160. doi:10.1002/jemt.10133. PMID 12203693. 
  3. ^ Myers, LJ; Nash, R; Elledge, HS (1984). "Electro-olfactography: a technique with potential for diagnosis of anosmia in the dog". Am J Vet Res. 45 (11): 2296-2298. PMID 6524723. 
  4. ^ Døving, Kjell (2003), "David Ottoson (1918-2001)", Chemical Senses, 28 (2): 83-84, doi:10.1093/chemse/28.2.83. 

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