Additionally, the effect of fusion on the visual system has great potential to be influenced by changes in task constraints, stimulus attributes, and observer characteristics.
Images are presented separately and simultaneously to the two eyes, without the use of colored lenses, with no constraints on stimulus properties (other than size: stimuli must be less than half of the width of the viewing screen), no degradation in luminance reaching the eye, and zero crosstalk between the two eyes.
In word recognition, normal reading speed of four to five words per second sets tight time constraints for stimulus processing.
These technical constraints provided the stimulus for research into a new generation of smart card known as the Network Smart Card [22 25] or USB smart cards [26, 27], which talks directly to a remote service provider via a host machine's Internet connection; i.e. sessions are handled by the network smart card itself with the host machine providing a network bridge to the remote server.
We constructed 64 different sequences optimizing the following criteria: As response variance across different experimental trials is relatively high, we applied the constraints that all stimulus types (V, H, VH, and B) should occur equally often (4 times within each 10-Hz sequence) and that every switch should occur equally often (once within each 10-Hz sequence).
Stimuli were presented in random order, with the only constraint that the same stimulus could not occur twice in a row.
Bar orientation (stimuli, probe) was independently randomized across π rad on each trial, with the constraint that the three stimulus bars must be at a minimum of 0.175 rad separation.
The fall in oil prices is partly to blame, but his critics say that Mr Harper's emphasis on a balanced budget at a time when the economy needs stimulus, not constraint, as well as giving tax breaks to the better-off, has made things worse.
It's one of the paradoxes of writing fiction as, I suspect, of most other kinds of artistic activity, that constraints act as a stimulus to the imagination, rather than an impediment.
The order of blocks was randomized with the constraints that no identical stimulus type (scale, pattern A, pattern B) occurred in direct succession and that stimuli with the same order of major keys occurred maximally two times in direct succession.
