High resolution spatio-temporal analysis of aquatic chemical signals using microelectrochemical electrodes

Paul A. Moore, Greg A. Gerhardt, Jelle Atema

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


Detailed understanding of chemoreceptor cell transduction and filtering depends on precise control and thus measurement of the chemical stimulus. In contrast to vision and hearing, accurate stimulus measurement in chemoreception has not been possible at biologically relevant spatial and temporal scales. In this paper we introduce a new high-speed (200 hz) electrochemical method for the direct measurement of odor signals at biologically relevant space scales (10-100 μm). We tested this system in three applications: (i) temporal and spatial features of odor plumes, (ii) stimulus calibrations in physiological recording chambers and (iii) boundary layer diffusion measurements within receptor structures.

Original languageEnglish
Pages (from-to)829-840
Number of pages12
JournalChemical Senses
Issue number6
StatePublished - Dec 1989

Bibliographical note

Funding Information:
We would like to thank Carl Merrill and Drs Rainer Voigt and Hortense Gerardo for assistance during experiments and Geoff Trager and Dr J.Rudi Strickler for use of the Flume. Special thanks to Mr Mike Parrish for the development of the software for the high-speed electrochemical recording system. The authors are indebted to Dr Thomas Finger who suggested the collaboration between the Woods Hole and Denver Laboratories. Supported by grants from NSF no. BNS-8812952 to J.A. and USPHS no. AG-06434 and AG-00441 to G.G.

ASJC Scopus subject areas

  • Physiology
  • Sensory Systems
  • Physiology (medical)
  • Behavioral Neuroscience


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