Human body odor, which contains several volatile organic compounds, possesses various odor qualities. To identify key volatile compounds responsible for the common unpleasant odors derived from human axillae and feet, the odor quality and intensity of 118 human axillae and feet were directly evaluated by sniffing, and odor compounds obtained from the subjects were identified. Furthermore, the s...

Exposure to odorants results in a rapid (<10 s) reduction in odor-evoked activity in the rat piriform cortex despite relatively maintained afferent input from olfactory bulb mitral cells. To further understand this form of cortical plasticity, a detailed analysis of its odor specificity was performed. Habituation of odor responses in anterior piriform cortex single units was examined in anesthe...

A model, called the Community Assessment Model for Odor Dispersion (CAM), was developed to predict receptor odor exposure from multiple swine production sources. The intended use of CAM was to provide a tool for evaluating the odor exposure to receptors in a community when siting new swine production systems and how a change in odor control technologies alters the odor exposure to receptors. CA...

People can consistently match to odors to colors, and within a culture, there are similarities in color-odor associations. These associations are forms of crossmodal correspondences. Recently, there has been discussion about the extent to which these correspondences arise for structural reasons (e.g., an inherent mapping between color and odor), statistical reasons (e.g., covariance in experien...

A principal goal in neuroscience is to understand how neuronal populations across different brain regions process information from the vibrant world, rich in moment-to-moment variations of sight, smell, sound, touch, etc. Traditional inquiries examine how the evoked neuronal responses differ with stimuli (e.g., sound or touch). However, the brain detects stimuli reliably even when ambient (or b...

Valence and edibility are two important features of olfactory perception, but it remains unclear how they are read out from an olfactory input. For a given odor object (e.g., the smell of rose or garlic), does perceptual identification of that object necessarily precede retrieval of information about its valence and edibility, or alternatively, are these processes independent? In the present st...

The black-odor phenomenon has been widely reported worldwide and recognized as a global ecological risk for aquatic environments. However, driving factors black-odor-related microorganisms potential self-remediation strategies are still poorly understood. This study collected eight water samples (sites A–H) disturbed by different from the Jishan River located in Jinmen, Hubei Province, China. B...

Stensmyr, M.C. 2004. The Fly Nose – Function and Evolution. Doctoral dissertation. ISSN 1401-6249, ISBN 91-576-6756-X This thesis summarizes and discusses the results of four separate studies on fly olfaction. The aim of the thesis has been to investigate how odor information is decoded by the fly peripheral olfactory system, how this code has evolved and how it is used by the insects in their ...

The animals, in particular insects (Drosophila melanogaster), response towards odor stimuli in nature can be established by measuring the dynamic of the odor response. Such an approach is innovative since responses to odors were tested only at certain time point so far, not in hour intervals for several hours. The odor attraction to 14 natural and ecologically relevant odor stimuli such as׃ fru...