Previous research has suggested that perceived distances are scaled by the action capabilities of the body. The present studies showed that when "reachability" is constrained due to a difficult grasp required to pick up an object, perceived distance to the object increases. Participants estimated the distances to tools with handle orientations that made them either easy or difficult to grasp wi...

The process of 3D freehand ultrasound acquisition consists of two steps: scanning and reconstruction. Prior to scanning, a position sensor is attached to the probe for tagging each image with its position and orientation in space. A crucial step prior to reconstruction and visualization is calibration of the ultrasound probe with the attached position sensor, i.e. determining the position and o...

Orthographically projected biological motion point-light displays are generally ambiguous with respect to their orientation in depth, yet observers consistently prefer the facing-the-viewer interpretation. There has been discussion as to whether this bias can be attributed to the social relevance of biological motion stimuli or relates to local, low-level stimulus properties. In the present stu...

Orientation of posture relative to the environment depends on the contributions from the somatosensory, vestibular, and visual systems mixed in varying proportions to produce a sensorimotor set. Here, we probed the sensorimotor set composition using a postural adaptation task in which healthy adults stood on an inclined surface for 3 min. Upon returning to a horizontal surface, participants dis...

Real 3D data acquired from scanning technology provide interesting 3D models for research and industrial applications. However before these models can be used, a surface needs to be fitted to a point cloud of an unknown object, this process might create some undesirable properties, such as triangle normals pointing in incorrect directions. We present a robust algorithm that reliably fixes these...