If an observer (O) can follow a performer (P)'s gaze direction and an object, O looks not only at the object but also at the P's movements related to the manipulation, and thus O represents the whole action of P and imitates the P's action.
But what if a material could be built that had a negative refractive index, so that light was bent in the opposite direction and an object appeared to be farther from the surface than it really was?Several years ago Sir John Pendry, a physicist at Imperial College, London, who was musing on this idea, realised that such a material would make a perfect lens.
Thus, each stimulus consisted of two features (motion direction and moving object) that were orthogonally repeated or alternated between S1 and S2.
For example, gaze following may not develop because infants who are not drawn to faces and eyes do not notice the relationship between gaze direction and interesting objects in the world (Triesch, Teuscher, Deák, & Carlson, 2006).
We expected to obtain the standard behavioral result: Repeating the motion direction and the moving object, or alternating both, should yield better performance than repeating one feature and alternating the other.
In striate cortex, retinotopic location and disparity tuning provide an anatomical basis for encoding the visual direction and depth of objects relative to the fixation point, but this anatomical regularity is not found in other parts of the cortex representing egocentric and world-centred relationships (DeAngelis and Newsome 1999; Cumming and DeAngelis 2001).
Operations taking place over 1636 s were reviewed to record hand postures, right and left hands, object shapes, object locations, and object directions and to classify them according to a hand posture classification system developed in this study.
The second contribution of the model lies in its more extensive use of local samples than previous models: instead of merely using them for verifying object presence at the gaze location or for determining likely object locations, the model uses them to determine a direction and distance to the object of interest.
Stripes and other high contrast patterns found on animals have been hypothesised to cause "motion dazzle", a type of defensive coloration that operates when in motion, causing predators to misjudge the speed and direction of object movement.
The second contribution of the model lies in its more extensive use of local samples than previous models: instead of merely using them for verifying object presence at the gaze location, the model uses them to determine a direction and distance to the object of interest.
