Heterophilic interactions of DM-GRASP: GRASP-NgCAM interactions involved in neurite extension.

Heterophilic interactions of DM-GRASP: GRASP-NgCAM interactions involved in neurite extension

DM-GRASP is an immunoglobulin superfamily cell adhesion molecule that is expressed in both the developing nervous and immune system. Specific populations of neurons respond to DM-GRASP substrates appears to require homophilic interactions between DM-GRASP molecules. We were interested in determining whether DM-GRASP interacts heterophilically with other ligands as well. We have found that eleve...

Templates for pre-grasp sliding interactions

In manipulation tasks that require object acquisition, pre-grasp interaction such as sliding adjusts the object in the environment before grasping. This change in object placement can improve grasping success by making desired grasps reachable. However, the additional sliding action prior to grasping introduces more complexity to the motion planning process, since the hand pose relative to the ...

Video survey of pre-grasp interactions in natural hand activities

Objects are often movable in the environment and do not have to be grasped from the presented placement. •Pre-grasp interaction can adjust object configuration in the environment to improve the task conditions for the final grasp. •Our video observation surveys the variety of pre-grasp interactions used by people in natural task settings. •The observed pre-grasp interactions can be described by...

Interactions between dorsal and ventral streams for controlling skilled grasp

The two visual systems hypothesis suggests processing of visual information into two distinct routes in the brain: a dorsal stream for the control of actions and a ventral stream for the identification of objects. Recently, increasing evidence has shown that the dorsal and ventral streams are not strictly independent, but do interact with each other. In this paper, we argue that the interaction...

Grasp.