Grasping the past

Grasping the past delay can improve visuomotor performance

"Optic ataxia" is caused by damage to the human posterior parietal cortex (PPC). It disrupts all components of a visually guided prehension movement, not only the transport of the hand toward an object's location, but also the in-flight finger movements pretailored to the metric properties of the object. Like previous cases, our patient (I.G.) was quite unable to open her handgrip appropriately...

Grasping the Torch

H aving firmly grasped the torch that Mahadev Satyanarayanan handed to me, I feel like the second runner in a relay, sprinting to make as much progress as I can during my allotted time. Satya founded IEEE Pervasive Computing, which, in the last four years, has published a rich legacy of peer-reviewed work and earned a venerable reputation. I will do my best to maintain this reputation and, wher...

Grasping with the eyes.

When observing someone else acting on an object, people implement goal-specific eye movement programs that are driven by their own motor representation of the observed action. Usually, however, we observe people acting in contexts where more objects, different in shape and size, are present. Is our brain able to select the intended target even when there are different objects in the visual scen...

Extending fingertip grasping to whole body grasping

Grasping the Nature of Pictures

205 Abstract — The role of experience in the development of pictorial competence has been the center of substantial debate. The four studies presented here help resolve the controversy by systematically documenting and examining manual exploration of depicted objects by infants. We report that 9-month-old infants manually investigate pictures, touching and feeling depicted objects as if they we...