Measuring Team Collaboration and Effects of Target Guidance in a Visual Search Task

<p>Many professional tasks, including military operations and medical operations, involve a team of operators searching for a target on a common visual display. Previous works on collaborative visual search employed analysis of mean response time (RT) and error rates, which may not offer direct measurement of the capacity of a team nor changes in performance across task time. Workload capacity, indexed by the capacity coefficient, C(t), measures performance efficiency for cognitive systems with multiple and concurrent information-processing channels (Townsend & Nozawa, 1995). The current study applied a workload capacity analysis to quantify performance efficiency of pairs of participants in a difficult visual search task. Sixty-eight participants performed a speeded visual search task both solitarily and in pairs with varying levels of target guidance. Each search display contained a target (O) and non-targets (Cs) where the gaps of either 20% (low target guidance) or 80% (high target guidance) of non-targets predicted the location of the target. Results indicate that solitary participants exhibited significantly faster RT in the high guidance condition than the low guidance condition, whereas paired participants demonstrated no difference in RT across target guidance conditions. Additionally, paired participants exhibited limited capacity in both target guidance conditions, indicating that participants slowed response speeds when working collaboratively compared to solitarily, regardless of levels of target guidance. Providing target guidance information may not prevent operators from slowing individual response speeds in collaborative trials. Present findings have implications for the effectiveness of providing target guidance to speed operator responses in contexts such as, search and rescue, surveillance, and reconnaissance.</p>

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Psychology

Year dc:date.available

2016

Author dc:creator

• Morley, Christopher

Contributors dc:contributor

• Yusuke Yamani (Director)
• Christopher Brill
• Philip Langlais

• Response time
• Team collaboration
• Visual search
• Workload capacity
• Experimental Analysis of Behavior
• Psychology

Statement dc:rights

• <p>In Copyright. URI: <a href="http://rightsstatements.org/vocab/InC/1.0/">http://rightsstatements.org/vocab/InC/1.0/</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).</p>

Identifier

9781369170771

OAI identifier oai:identifier

oai:digitalcommons.odu.edu:psychology_etds-1031