Object-oriented olfaction: challenges for chemosensation and for chemosensory research.

Trends Neurosci

Department of Medical Neurobiology, The Hebrew University Faculty of Medicine, Institute for Medical Research, Israel-Canada (IMRIC), Jerusalem, Israel. Electronic address:

Published: October 2024

AI Article Synopsis

  • Many animals rely on their sense of smell to gather information about their surroundings, but the scents or molecular signatures emitted by objects can vary for several reasons.
  • This variability makes it challenging for animals to recognize objects based solely on scent, suggesting that the complex chemosensory systems they possess play a crucial role in overcoming this challenge.
  • The authors highlight the need for more comprehensive studies on olfactory object variability through chemical, behavioral, and physiological research, emphasizing that their findings are relevant not just for mammals with strong olfactory capabilities, but for all creatures that use smell to interact with their environments.

Article Abstract

Many animal species use olfaction to extract information about objects in their environment. Yet, the specific molecular signature that any given object emits varies due to various factors. Here, we detail why such variability makes chemosensory-mediated object recognition such a hard problem, and we propose that a major function of the elaborate chemosensory network is to overcome it. We describe previous work addressing different elements of the problem and outline future research directions that we consider essential for a full understanding of object-oriented olfaction. In particular, we call for extensive representation of olfactory object variability in chemical, behavioral, and electrophysiological analyses. While written with an emphasis on macrosmatic mammalian species, our arguments apply to all organisms that employ chemosensation to navigate complex environments.

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Source
http://dx.doi.org/10.1016/j.tins.2024.08.008DOI Listing

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Object-oriented olfaction: challenges for chemosensation and for chemosensory research.

Trends Neurosci

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Department of Medical Neurobiology, The Hebrew University Faculty of Medicine, Institute for Medical Research, Israel-Canada (IMRIC), Jerusalem, Israel. Electronic address:

Article Synopsis
  • Many animals rely on their sense of smell to gather information about their surroundings, but the scents or molecular signatures emitted by objects can vary for several reasons.
  • This variability makes it challenging for animals to recognize objects based solely on scent, suggesting that the complex chemosensory systems they possess play a crucial role in overcoming this challenge.
  • The authors highlight the need for more comprehensive studies on olfactory object variability through chemical, behavioral, and physiological research, emphasizing that their findings are relevant not just for mammals with strong olfactory capabilities, but for all creatures that use smell to interact with their environments.
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