Analysing and modelling sequences of eye movement behaviour during visual search

在视觉搜索过程中，眼球运动是一种重要的行为，可以帮助我们识别和检查环境中不同的物体。我们经常进行视觉搜索，它在我们的日常生活和几个关键领域（如机场安全，放射照相和法医搜索）中都具有重要意义。这项拟议中的研究项目旨在检查搜索者在视觉搜索过程中所做的眼球运动序列。一系列的问题将被探索，包括搜索者如何计划他们的眼睛从一个位置到另一个位置的运动，在视觉搜索过程中，搜索者在忘记和返回到以前访问过的对象之前可以在他们的记忆中保留多少对象（即记忆容量），以及当我们搜索时无法识别对象。在此之前，许多概念只是通过观察平均水平或总体水平而得到了部分检验。然而，研究视觉搜索过程中某些行为发生的时间和原因的研究相对较少。因此，该项目将关注搜索者在多大程度上计划超越当前固定的未来固定，以及搜索者在多大程度上记住他们已经搜索过的地方。此外，我们还将详细研究工作记忆容量等个体差异如何影响搜索和固定计划中的记忆。总的来说，该项目旨在开发一种新的视觉搜索模型，可以解释当搜索者在他们的环境中搜索目标时所产生的固定序列。

Eye movement during visual searching is an important behaviour that help us identify and examine different objects within our environment. We engage in visual search regularly and it is a task with great significance both in our day-to-day life and in several critical domains such as airport security, radiographic and forensic searches. The proposed research project is aimed at examining sequences of eye movements that searchers make during visual search. A range of issues are to be explored, including how searchers plan the movements of their eyes from one location to another, how many objects searchers can hold in their memory during visual search before they forget and return to a previously visited object (i.e., memory capacity), and failures to identify objects when we search. Many of these concepts has only been partially examined before by looking at averages, or overall levels. However, relatively little work has been conducted that examined when and why certain behaviours occur during visual search. Therefore, the project will look at both the degree to which searchers plan future fixations beyond the current fixation, as well as the degree to which searchers remember where they have already searched. In addition, a detailed account of how individual differences such as working memory capacity can influence memory in search and fixation planning will be examined. Overall, the project aims to develop a new model of visual search that can explain the sequences of fixations made by searchers when they search for a target in their environment.