Robots are needed to locate the sources of toxic chemical plumes. Lobsters, which track odor plumes for many ecologically crucial activities, can provide inspiration for robot designers. Before accurate search strategies for robots can be developed, how odor molecules are captured by the lobster's chemosensors must be understood. A recent study by Koehl et al. shows how lobster olfactory antennules alter the patterns of concentration in turbulent odor plumes during odor sampling.
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http://dx.doi.org/10.1016/s0167-7799(02)01979-0 | DOI Listing |
PLoS One
January 2025
Sensory Circuits and Neurotechnology Laboratory, The Francis Crick Institute, London, United Kingdom.
Odours released by objects in natural environments can contain information about their spatial locations. In particular, the correlation of odour concentration timeseries produced by two spatially separated sources contains information about the distance between the sources. For example, mice are able to distinguish correlated and anti-correlated odour fluctuations at frequencies up to 40 Hz, while insect olfactory receptor neurons can resolve fluctuations exceeding 100 Hz.
View Article and Find Full Text PDFJ Air Waste Manag Assoc
January 2025
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, Toronto, ON, Canada.
Continuous ambient sulfur measurements are routinely conducted around the globe at numerous monitoring sites impacted by industrial sources, such as gas and oil processing facilities, pulp and paper mills, smelters, sewage treatment facilities, and concentrated animal feeding operations, as well as by natural sources, such as volcanoes. Various jurisdictions have or plan to establish air ambient quality objectives, guidelines, or standards for total reduced sulfur (TRS) based on odor perception and/or health effects. A conventional TRS monitoring technique is widely used, but few studies have looked at potential biases in the resulting TRS measurements.
View Article and Find Full Text PDFPLoS Biol
November 2024
Sensory Dynamics and Behaviour Lab, Institute of Experimental Epileptology and Cognition Research, University of Bonn Medical Center, Bonn, Germany.
Nat Methods
December 2024
Neuroengineering Laboratory, Brain Mind Institute & Interfaculty Institute of Bioengineering, EPFL, Lausanne, Switzerland.
Discovering principles underlying the control of animal behavior requires a tight dialogue between experiments and neuromechanical models. Such models have primarily been used to investigate motor control with less emphasis on how the brain and motor systems work together during hierarchical sensorimotor control. NeuroMechFly v2 expands Drosophila neuromechanical modeling by enabling vision, olfaction, ascending motor feedback and complex terrains that can be navigated using leg adhesion.
View Article and Find Full Text PDFChemosphere
October 2024
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China. Electronic address:
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