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Updated: Jul 17, 2026
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Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
Published on: October 31, 2011
Are olfactory images sensory in nature?
Haruko Sugiyama1, Saho Ayabe-Kanamura, Tadashi Kikuchi
1Institute of Psychology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan. harukos@human.tsukuba.ac.jp
Perception
|February 8, 2007
Summary
Olfactory mental images possess sensory features, closely mirroring actual smell perceptions. Associative learning enhances these odour images, making them more perceptually accurate.
Area of Science:
- Cognitive Neuroscience
- Sensory Perception
- Olfactory Psychology
Background:
- Understanding olfactory mental imagery is crucial for cognitive science.
- Previous research has explored smell perception and semantic memory, but the sensory nature of olfactory mental images remains less understood.
- Investigating the relationship between imagined odors, perceived odors, and their semantic representations is key to mapping olfactory cognition.
Purpose of the Study:
- To investigate the sensory features of olfactory mental images.
- To compare olfactory mental images with perceptual (smell-based) and semantic (meaning-based) representations.
- To determine the impact of associative learning on the fidelity of olfactory mental images.
Main Methods:
- Three groups of participants judged similarity of 17 common odors: smelling (perceptual), imagining (mental imagery), and meaning (semantic).
- The imagining group underwent judgments before and after associative learning of odor/name combinations.
- Nonmetric multidimensional scaling and Procrustes analysis were used to create and compare sensory, mental, and semantic spaces.
Main Results:
- The averaged distances between sensory and mental spaces were smaller than between sensory and semantic spaces.
- Olfactory mental images showed greater similarity to perceptual representations than to semantic representations.
- Associative learning significantly improved the sensory accuracy of olfactory mental images.
Conclusions:
- Olfactory mental images retain significant sensory characteristics.
- The mental representation of odors is more closely aligned with sensory experience than with semantic meaning.
- Associative learning strengthens the link between perceived odors, their names, and their mental representations, enhancing sensory fidelity.
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