Sensory adaptation modulates coding and the perceptual quality of odor mixtures
Summary: Sensory systems dynamically adjust their sensitivity to optimize information detection while minimizing interference. Sensory adaptation, a fundamental phenomenon across sensory modalities, temporarily reduces responsiveness during stimulus exposure and allows recovery afterward. We investi...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S258900422501260X |
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| author | Nicolás Pírez Federico Andrés Gascue Marcos Rafael Sorrentino Fernando Federico Locatelli |
| author_facet | Nicolás Pírez Federico Andrés Gascue Marcos Rafael Sorrentino Fernando Federico Locatelli |
| author_sort | Nicolás Pírez |
| collection | DOAJ |
| description | Summary: Sensory systems dynamically adjust their sensitivity to optimize information detection while minimizing interference. Sensory adaptation, a fundamental phenomenon across sensory modalities, temporarily reduces responsiveness during stimulus exposure and allows recovery afterward. We investigated how adaptation influences the perception of odor mixtures in honeybees, Apis mellifera. Using electroantennogram recordings, we established conditions that reliably induce adaptation at the level of olfactory receptor neurons. We then examined its effects on mixture representation in projection neurons of the antennal lobe. Adaptation significantly reduced the contribution of the adapted odor while preserving the relative strength of the non-adapted component. A behavioral conditioning protocol revealed that adaptation shifted the perceptual quality of mixtures toward the non-adapted odor. Our findings demonstrate that sensory adaptation enhances mixture segregation, facilitating the detection of low-concentration components that might otherwise be masked within complex stimuli. |
| format | Article |
| id | doaj-art-e71daf33df1b41789ae170ecb2d435f6 |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-e71daf33df1b41789ae170ecb2d435f62025-08-20T03:28:24ZengElsevieriScience2589-00422025-07-0128711299910.1016/j.isci.2025.112999Sensory adaptation modulates coding and the perceptual quality of odor mixturesNicolás Pírez0Federico Andrés Gascue1Marcos Rafael Sorrentino2Fernando Federico Locatelli3Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular and CONICET-UBA, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Buenos Aires, ArgentinaUniversidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular and CONICET-UBA, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Buenos Aires, ArgentinaUniversidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular and CONICET-UBA, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Buenos Aires, ArgentinaUniversidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular and CONICET-UBA, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Buenos Aires, Argentina; Corresponding authorSummary: Sensory systems dynamically adjust their sensitivity to optimize information detection while minimizing interference. Sensory adaptation, a fundamental phenomenon across sensory modalities, temporarily reduces responsiveness during stimulus exposure and allows recovery afterward. We investigated how adaptation influences the perception of odor mixtures in honeybees, Apis mellifera. Using electroantennogram recordings, we established conditions that reliably induce adaptation at the level of olfactory receptor neurons. We then examined its effects on mixture representation in projection neurons of the antennal lobe. Adaptation significantly reduced the contribution of the adapted odor while preserving the relative strength of the non-adapted component. A behavioral conditioning protocol revealed that adaptation shifted the perceptual quality of mixtures toward the non-adapted odor. Our findings demonstrate that sensory adaptation enhances mixture segregation, facilitating the detection of low-concentration components that might otherwise be masked within complex stimuli.http://www.sciencedirect.com/science/article/pii/S258900422501260XZoologyEntomologyNeuroscienceSensory neuroscience |
| spellingShingle | Nicolás Pírez Federico Andrés Gascue Marcos Rafael Sorrentino Fernando Federico Locatelli Sensory adaptation modulates coding and the perceptual quality of odor mixtures iScience Zoology Entomology Neuroscience Sensory neuroscience |
| title | Sensory adaptation modulates coding and the perceptual quality of odor mixtures |
| title_full | Sensory adaptation modulates coding and the perceptual quality of odor mixtures |
| title_fullStr | Sensory adaptation modulates coding and the perceptual quality of odor mixtures |
| title_full_unstemmed | Sensory adaptation modulates coding and the perceptual quality of odor mixtures |
| title_short | Sensory adaptation modulates coding and the perceptual quality of odor mixtures |
| title_sort | sensory adaptation modulates coding and the perceptual quality of odor mixtures |
| topic | Zoology Entomology Neuroscience Sensory neuroscience |
| url | http://www.sciencedirect.com/science/article/pii/S258900422501260X |
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