ETT Olfactometer 2, Manual

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© Emerging Tech Trans, LLC
In some cases, the end last visual stimulus is simply aligned with the longest defined olfactory stimulus.
Then, checking the
Extend to end checkbox next to the visual stimulus Duration textbox will
automatically extend the duration of the visual stimulus to the end of the group (Figure 49 is equal to
Figure 50 during paradigm execution). This automatic extension will be denoted with a red E above the
last visual stimulus.
Managing, cloning and adjusting groups
ETTDirectControl uses groups as a layer between actual events and the ultimate paradigm. Repeated
stimulus conditions that are grouped together into one definition and can be reused throughout the
paradigm. A simple but very common paradigm as we are trying to build in this tutorial, can thus be
created within just a few minutes. Groups can also simply be cloned and altered to define similar
conditions. To exemplify this process, rename
Group 1 to Lavender -3.0 (Figure 51).
Figure 51 - Rename groups to label experimental conditions.
By hitting the clone button, a new identical copy of this group will be created. The name of the cloned
group will be appended with a “.C” for cloned . The second general condition of this paradigm is
Lavender -2.5 . Change the cloned groups name to that and alter the olfactory condition to open Valve 2
instead of Valve 1 (Figure 52).
Figure 52 - Changing the active valve on the selected condition to adjust group two to the Lavender -2.5 condition.
Repeat the above steps for the Lavender -2.0 (use valve 3) and Lavender -1.5 (use valve 4) conditions
(Figure 53).
Figure 53 - The final group list for the four concentrations used in this tutorial can be added to the paradigm.