English: These 3 video examples demonstrate the three directions of the head tremors. Video 1 shows a rotational type of head tremor in a 2 year old miniature Schnauzer. In this case, 8 episodes, lasting about 25 seconds each, occurred over a 2 month period. The 3 year old spayed female Boxer in video 2 demonstrates the vertical ("yes") head tremors. She had at least 6 episodes within a 3 week period with durations that varied from 30 seconds to 3 minutes. Many of them started when she was in lateral recumbency as noted in the video. In video 3, a young male Labrador has short duration of 'no' or horizontal head tremors.