Browsing Psychology by Author "Marotta, Jonathan J"

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Eye-hand Coordination in Reaching and Grasping Vertically Translating Targets

Thulasiram, Matsya R; Langridge, Ryan W; Abbas, Hana H; Marotta, Jonathan J (2019)

Previous research in our lab has revealed a strong visual bias toward the eventual index finger contact location when grasping stationary or horizontally moving targets. However, the unique properties of the thumb may have ...
Grasping 2-D Targets in Motion: The Influence of a Preferable Central Grasp Location on Eye-Hand Coordination

Langridge, Ryan W.; Marotta, Jonathan J. (2019)

When using a precision grip to grasp a rectangular object (index finger on top and thumb on the bottom of the object), digit placement is usually close to the object’s horizontal center, ensuring stability. An object’s ...
Grasping in a Cluttered Environment: Avoiding Obstacles Under Memory Guidance

Abbas, Hana H; Marotta, Jonathan J (2019)

Humans often reach to remembered objects, such as when picking up a coffee cup from behind our morning paper. When reaching to previously seen, now out-of-view objects, we rely on our perceptual memory of the scene, to ...