The University of Southampton
Psychology

Research project: Visual search for multiple targets

Currently Active: 
Yes

The purpose of this long-term international project is to examine visual search for multiple types of target, and determine how the target information is represented in order to promote efficient and successful search.

Project Overview

Results from this project have demonstrated a cost in performance when searching for two types of target simultaneously, relative to two independent searches, each for one target. The cost in accuracy occurs regardless of practice or frequency of targets. Eye-movement data reveal that when searching for two targets, the representations of targets required for guiding search are less well defined than in single-target search, allowing the needless fixation of distractors that are dissimilar to either target. This work is being applied to airport security search for multiple types of threat items (guns, knives, explosives) in X-ray images of baggage. Implications of the research are that screening personnel should specialise on one type of target.

Funding is from: U.S. Department of Homeland Security, QinetiQ, U.K. Department of Transport, EPSRC.

Related research groups

Centre for Vision and Cognition (CVC)

Publications

Staff

Share this research project Facebook Google+ Twitter Weibo

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×