Reaction Time Correlations during Eye-Hand Coordination: Behavior and Modeling

Reaction time correlations during eye-hand coordination: behavior and modeling.

During coordinated eye-hand movements, saccade reaction times (SRTs) and reach reaction times (RRTs) are correlated in humans and monkeys. Reaction times (RTs) measure the degree of movement preparation and can correlate with movement speed and accuracy. However, RTs can also reflect effector nonspecific influences, such as motivation and arousal. We use a combination of behavioral psychophysic...

Eye-Hand Coordination in Time and Space

Recognizing Behavior in Hand-Eye Coordination Patterns

Modeling human behavior is important for the design of robots as well as human-computer interfaces that use humanoid avatars. Constructive models have been built, but they have not captured all of the detailed structure of human behavior such as the moment-to-moment deployment and coordination of hand, head and eye gaze used in complex tasks. We show how this data from human subjects performing...

Eye-Hand Coordination during Dynamic Visuomotor Rotations

BACKGROUND for many technology-driven visuomotor tasks such as tele-surgery, human operators face situations in which the frames of reference for vision and action are misaligned and need to be compensated in order to perform the tasks with the necessary precision. The cognitive mechanisms for the selection of appropriate frames of reference are still not fully understood. This study investigat...

Eye–hand coordination: Eye to hand or hand to eye?

Single-unit recording has revealed both hand and eye movement-related activity in the parietal cortex of the macaque monkey. These experiments, as well as neuropsychological studies, are unravelling the complex nature of how the eye and the hand work together in the control of visually guided movements.