Knowledge Base

Acquire the data

methods

Choose Acquisition > Open Acquisition. Locate the Acquisition Settings window at the right side of the screen. If you track from pre-recorded video files, select Track next planned trial, click the button next to Video and open the video you want to use. If you track from the live camera image, select Track next planned trial. Select Save video if you want to save the camera footage to a video file. For more acquisition methods, see Acquire Data in the EthoVision XT Help.

procedure for acquiring one trial

1. Under Settings, choose the Arena Settings, Trial Control Settings, and Detection Settings, if they are not already selected in the Trial List.
2. If you track from video and do not score behaviors manually, make sure the DDS (Detection Determines Speed) checkbox is selected in the Playback Control window. With this option you ensure that every sample is analyzed. Acquire the data
3. To start a trial, click the Start trial button in the Playback Control window.
4. Release the subject in the arena.
5. To stop the trial, click the Stop trial button.
6. Return the subject to its home cage or container.
7. Prepare the next subject, or load a new video file to acquire the next trial.

more options

You can automatically start and stop your trial depending on the behavior or position of your subject. See page 10. You can also acquire data in batch mode. For details, see Batch data acquisition in the EthoVision XT Help. You can also score behaviors manually during tracking. If you saved the video during tracking, you can review the video and add or edit existing behavioral data. For details, browse the EthoVision XT Help: To define behaviors, see Set Up an Experiment > Manual Scoring Settings. To score behaviors, see Acquire Data > Score behaviors manually. If no planned trial is left, click the Add Trial button in the Playback Control window. Sometimes EthoVision XT tracks a reflection instead of the subject, it confuses the nose- point and the tail-base or swaps subjects when you track multiple animals simultaneously. Whenever that occurs, you can correct those errors. For more information, see Edit the Tracks in the EthoVision XT Help. Calculate the statistics

Source: EthoVision XT 18 - Quick Start Guide