For many cells, this quantification method reveals larger magnitude responses than the responses that would have been calculated if F0 were set to t=1-9s; however, we chose this method because it is more sensitive to small odor-evoked increases in the calcium signal.
For smaller odor droplets such as those used in the present study, the temporal evolution of the odor gradient cannot be neglected.
The predicted response profiles support previous observations made with smaller odor panels that the olfactory system can potentially detect thousands of volatile chemicals, many of which the organism may never have encountered in its chemical environment.
Basidiomata usually solitary or in small groups; odor indistinct; cheilocystidia mostly covered with evenly distributed excrescences……M.
Although the relative difference in perceived familiarity was smaller for odors than for faces, the familiarity effect on recognition was true for both modalities (Klatzky and Forrest 1984; Rabin and Cain 1984; Murphy et al. 1991; Trinkler et al. 2009).
When washing your pet's cage, use a small amount of odor free soap to eliminate the smell of hamster fecal.
The dose-response curve of ORNs is a sigmoid, and small differences in odor delivery can in result in changes in the concentrations producing inconsistencies between the previously published results [18] and the recordings in this study, particularly for these "borderline" odors.
Thomas et al. (2003), for example, found that small changes of odor, location within a room, or unintended differences between Skinner boxes suffice to create renewal effects.
The 144-odor database "is still a small collection of the odors we encounter in our world," she said. .
Studies that have examined its effects in the mouth have found that while it may have some small initial effect on odor — mostly by masking it — it does little to reduce the concentration of volatile sulfur compounds.
