The mean duration of saccades (defined by velocities above 400°/s) was 15.6±0.4 ms, while intersaccadic intervals lasted 91.9±3.93 ms. This means that when seen from above, the head was held in a constant direction for 83% of the flight around an obstacle.
So that the changes in adaptation could be confirmed, participants in experiment 2 (n = 8) adapted for 80 trials to a velocity-dependent force field of a constant direction applied to one of the hands.
We assessed the directionality of bees (tendency to move in a constant direction between flowers) by comparing the number of clockwise and anti-clockwise sequences with binomial tests.
The gyroscope tends therefore to point in a constant direction in space, allowing the orientation of the vehicle to be accurately maintained.
Bees approached the food source from a constant direction, so that the visual image of the scene was roughly the same each time they approached the food [3], [4].
A numerical model of the cascade with constant direction of material flow is tested, a model of changes of direction flow and a relaxation model.
These novel teeth are intended for constant direction of rotation although they can be used in a limited way for reverse rotation.
The relatively constant direction of these fields may allow animals drifting in the ocean to maintain a constant heading relative to the water current stream (passive mode) [25] but direct empirical tests are few [26].
A compass sense has been demonstrated in birds; that is, they are able to fly in a particular constant direction, regardless of the position of the release point with respect to the bird's home area.
In summer, the prevailing winds are light, moving in a nearly constant direction and the atmosphere is relatively free of turbulent and convective motions (Byrne et al., 1993).
