It was first observed in 1847 that in crystals of magnetic material there appeared to exist preferred directions for the magnetization.
Thus no matter what the shape is of the hodon, there will be preferred directions and this implies that the space is anisotropic.
Furthermore, they found that the receptive fields are composed of areas with different preferred directions.
There, the so-called lobula plate tangential cells possess large receptive fields with different preferred directions in different parts of the visual field.
Our quantitative findings should contribute to future molecular investigations about the extent, time course, preferred directions and the critical period termination of ME-induced rearrangement of retinogeniculate projections.
When comparing preferred directions in upright and tilted conditions (either RED or LED, e.g., Fig. 6 B ), a pooled SD was calculated from 2 SDs of the corresponding preferred directions.
Once task-related neurons were isolated (see Data Analysis), we determined preferred directions for their responses by moving cue 1 along different directions.
Multiple velocity controlled oscillators, with different preferred directions, can form the basis of a path integration mechanism, by tracking displacement along multiple directions.
For almost all neurons tested, preferred directions when upright and during static whole-body roll-tilt (RED and LED) were not clearly different.
In the smooth pursuit only condition, we compared preferred directions between upright and static whole-body roll-tilt in a total of 38 neurons.
For some neurons with vertical or oblique pursuit preferred directions, trunk-on-head rotation was also tested for comparison (Results not shown).
