A Study of Saccade Transition for Attention Segregation and Task Strategy in Laparoscopic Surgery

摘要

The advent and accelerated adoption of laparoscopic surgery requires an objective assessment of both operative performance and perceptual events that lead to clinical decisions. In this paper we present a framework to extract the underlying strategy through the analysis of saccadic eye-movements that lead to visual attention, and identification of intrinsic features central to the execution of basic laparoscopic tasks. Markov modeling is applied to the quantification of the saccadic eye movements for elucidating the intrinsic behaviour of the participants and the spatial-temporal evolution of visual search and hand/eye coordination characteristics. It has been found that participants adopted a unified strategy but the underlying disparity in saccadic behaviour reflect temporal and behavioural differences that could be indicative of the mental process by which the task was executed.