Rigorously quantifying perceptual similarity is essential to link sensory stimuli to neural activity and to define the dimensionality of perceptual space, which is challenging for the chemical senses in particular. Nakayama, Gerkin, and Rinberg present an efficient delayed match-to-sample behavioral paradigm that promises to provide a metric for odor similarity.
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http://dx.doi.org/10.1016/j.crmeth.2022.100240 | DOI Listing |
, a special economic aquaculture species in China, is valued highly for its medicinal and nutritional benefits. However, the muscle of farmed exhibits a strong off-flavor, resulting in poor flavor quality. To enhance the flavor quality of the meat, this study examined the volatile compounds in muscle by establishing identification methods for these volatile odor compounds and comparing the differences between the two aquaculture modes.
View Article and Find Full Text PDFInt J Food Microbiol
January 2025
Department of Food Science and Technology, Ayatollah Amoi Branch, Islamic Azad University, Amol, Iran.
The aim of the present research was to evaluate the effect of Urtica dioica L. (nettle) essential oil (in the forms of Pickering nanoemulsion (NEO) and free (EO)) on microbial, chemical and sensory changes of pizza cheese stored at 4 °C for 12 days. For this purpose, Escherichia coli and Listeria monocytogenes were inoculated into pizza cheese.
View Article and Find Full Text PDFPLoS 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 PDFChem Senses
December 2024
Department of Biological Science, Florida State University, Tallahassee, FL.
Although animals can reliably locate and recognize odorants embedded in complex environments, the neural circuits for accomplishing these tasks remain incompletely understood. Adaptation is likely to be important as it could allow neurons in a brain area to adjust to the broader sensory environment. Adaptive processes must be flexible enough to allow the brain to make dynamic adjustments, while maintaining sufficient stability so that organisms do not forget important olfactory associations.
View Article and Find Full Text PDFBull Entomol Res
January 2025
Ningxia Academy of Agriculture and Forestry Sciences, Institute of Plant Protection, Yinchuan, China.
Insect odorant-binding proteins (OBPs) are the key proteins in insect olfactory perception and play an important role in the perception and discrimination of insects. is a polyphagous pest and seriously harms the quality and yield of fruits, flowers and crops worldwide. Therefore, the discovery of OBPs has greatly improved the understanding of behavioural response that mediates the chemoreception of .
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