After "this activity pattern:" is the unique name we apply to the pattern shown in the center of the page. Beneath this name, we indicate the number of rats used to create that average pattern. Beneath the number of rats we indicate the parts of odorant per million parts of vapor (ppm) used during the exposure, if this number is available. The value is calculated using both the partial pressure of the odorant as represented on the molecular properties page and the dilution factor in air. (In the event that the odorant was first dissolved in a solvent, we are not currently able to calculate the ppm in the vapor phase as described in "About our Methods".) Beneath the value for ppm we give an exposure description including the dilutions in air and solvent, if any. In early papers, we used the method of Hass and Newton to estimate vapor pressures and to calculate ppm vapor phase concentrations. In the event that we previously published vapor phase concentrations derived in this way, this previously published ppm concentration will be indicated within the notes that appear in a blue color at the bottom of the pattern information.  

Beneath the description of the odor dilution, we provide a study code that identifies a unique experiment conducted by our laboratory. (We find that patterns often show greater similarity within an experiment than across different experiments, which is not surprising given that the animals are more closely related to each other, that the animals have had a more similar environment during rearing, that they share home cage odors, that the same cylinders of gas are used during the exposures, and that a common blank pattern has been subtracted.) Below the study code, we indicate the print publication(s) that have utilized the activity pattern. These papers can be accessed from our Publications page. 

Beneath the publication is a set of notes in blue type that indicates the relationship of the displayed pattern to other patterns in our database. Also included in these notes is any other information that helps to identify the pattern as well as any comments we might offer regarding the interpretation of the pattern. 

If this page is reached through the "Browse Odorants" feature of our site, there will be a section on the bottom of the page with the heading "instances of this odorant:". In the event that we studied the same odorant more than once, there will be patterns listed here beyond the one shown on the page. These patterns can be accessed by clicking on their names.