Marino B F M, Stucchi N, 2001, "A visual space mapping: Evidence of cross talk between action and perception" Perception 30 ECVP Abstract Supplement
A visual space mapping: Evidence of cross talk between action and perception
B F M Marino, N Stucchi
In order to map the structure of visuospatial representation we applied a line-reproduction task to young right-handed and left-handed adults. Participants were given a computer-generated line, designated only by its endpoints, and were requested to position the cursor so as to reproduce the given line in a mirror-like manner. The two endpoints, one of which was always centred on the body midline and served as fixation point, were presented at three different distances and in eight different orientations. We found that the mean reproduction length was significantly influenced by both the distance between the two original points and their orientation. Increasing the distance to reproduce led the subjects to robustly underestimate the reproduction length. For right-handed individuals, underestimation was significantly greater when reproduction was performed in the left hemispace. The mean reproduction inclination was not influenced by either the distance between the two original points or their orientation. Differences between right-handed and left-handed subjects as well as right - left asymmetry within dextrals are interpreted in terms of influence of unfolding procedural knowledge on visuospatial representation processing.
These web-based abstracts are provided for ease of seaching and access, but certain aspects (such as as mathematics) may not appear in their optimum form. For the final published version of this abstract, please see
ECVP 2001 Abstract Supplement (complete) size: 1517 Kb