Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network

  Advanced Search  

Investigation of Partial Directed Coherence for Hand-Eye Coordination in Laparoscopic training

Summary: Investigation of Partial Directed Coherence for Hand-
Eye Coordination in Laparoscopic training
Abstract. Effective hand-eye coordination is an important aspect of training in
laparoscopic surgery. This paper investigates the interdependency of the hand
and eye movement along with the variability of their temporal relationships
based on Ganger-causality. Partial directed coherence is used to reveal the sub-
tle effects of improvement in hand-eye coordination, where the causal relation-
ship between instrument and eye movement gradually reverse during simple
laparoscopic tasks. For assessing the practical value of the proposed technique
for minimally invasive surgery, two laparoscopic experiments have been con-
ducted to examine the ability of the trainees in handling mental rotation tasks,
as well as dissection and manipulation skills in laparoscopic surgery. Detailed
experimental results highlight the value of the technique in investigating hand-
eye coordination in laparoscopic training, particularly during early motor learn-
ing for complex bimanual procedures.
1 Introduction
Hand-eye coordination is a complex combinatory problem, involving many sensori-
motor coupling including the visual, proprioceptive, tactile, attention, and motor
systems. However, the study of hand-eye coordination can be simplified to a model
describing the use of the visual system to guide/validate the movements of the hand.


Source: Atallah, Louis - Department of Computing, Imperial College, London


Collections: Computer Technologies and Information Sciences