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Spatial patterning and information coding in the olfactory system

S L Sullivan1, K J Ressler, L B Buck

  • 1Howard Hughes Medical Institute, Boston, USA.

Current Opinion in Genetics & Development
|August 1, 1995
PubMed
Summary
This summary is machine-generated.

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Mammals use about 1000 odorant receptors to detect diverse smells. Sensory information is organized in the nose and mapped in the olfactory bulb.

Area of Science:

  • Olfactory neuroscience
  • Molecular biology

Background:

  • Mammals can distinguish thousands of odorants.
  • This ability is linked to a large multigene family encoding ~1000 distinct odorant receptors.

Purpose of the Study:

  • To investigate the organizational principles of sensory information processing in the mammalian olfactory system.
  • To understand how odorant receptor diversity contributes to olfactory perception.

Main Methods:

  • Utilizing the odorant receptor gene family as a model system.
  • Analyzing patterns of sensory information organization within the olfactory system.

Main Results:

  • Identified broad organization of olfactory information in the nose.
  • Observed transformation of sensory input into a stereotyped spatial map within the olfactory bulb.

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Conclusions:

  • The olfactory system exhibits hierarchical organization, starting in the nose and culminating in a precise map in the olfactory bulb.
  • Odorant receptor gene family provides a framework for understanding olfactory sensory processing and organization.