ETT Olfactometer 2, Manual

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© Emerging Tech Trans, LLC
Figure 56 - The Group randomizer with existing groups on the left allows to weight and exclude specific groups. The total
number of trials determines the list of trials on the right. Trials can be added to the paradigm via the Append trial list to
paradigm button.
Figure 57 - Pseudo randomized version of the tutorial 4 concentrations paradigm. Trial labels allow for easy post-procesing later
on.
Triggered start
When using external TTL triggers, activate the External TTL Triggered Start check box in the Paradigm
settings tab. A block will automatically be inserted ahead of the paradigm in the paradigm designer
signifying this trigger condition. Save the paradigm. Once a device is connected, click the TTL Trigger
button under the Manual Mode tab. Make sure the button label ends in Enabled for success. The
paradigm is now ready to be externally triggered via the TTL trigger in port of the Olfactometer. This
feature additionally allows for keyboard keys (t,T or custom) to trigger the start of the paradigm when
connected to peripherals from other manufacturers. If the use of such triggers is necessary, the visual
Subject Interface must have keyboard focus during paradigm execution. Please consult the section about
Using Triggers at the end of this manual.
Recording the respiratory signal
The respiratory signal will automatically be recorded if the Respiration button of the connected device is
set to Enabled under the Manual Mode tab. Please consult the section about Using Triggers at the end
of this manual for more information.
Test run
Before the first test run, the paradigm should be saved again. Full screen settings, external triggers and
associated devices will automatically be saved with the paradigm (Figure 58). Make sure all necessary