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IAT201 Week 10.docx

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Simon Fraser University
Interactive Arts & Tech
IAT 201
Brian Fisher

Week 10 Distributed Cognitive Systems Why Distribute Cognition Tasks are just too hard Do not want to depend on a single individual -check for errors -they may quit! -shift changes Need to coordinate tasks done my many individuals Tasks require coordination across space and time It is part of the fun! (social software, games) Need for New HCI Methods Much of HCI, information design came from studies and design experience with traditional computer displays We must design increasingly complex interactive displays that can be perceived and understood by users Multiple displays and input methods may be used Communication and collaboration (same/different place, time) may be needed -application goals may be cognitive, social, or experiential When visual intelligence end & intelligence begin Cognitive impenetrability (Pylyshyn, 1984) refers to the inability of observers to use semantic information (such as what the person believes or intends to do) to influence the operation of the input stage Modularity of Mind (Fodor, 1980) argues that information is hidden (encapsulated) in modules and cannot be shared Ware’s Visual Queries Major Claim 1: Thinking as smart seeing and Projecting Actively looking at external representations and projecting onto them makes us more powerful thinkers than thinking in our heads alone How to Overcome Cognitive Bottlenecks First, offload cognition to representations that can be manipulated -sketching, writing, math on paper etc. -visual-enabled reasoning Next, distribute across people (socially distributed cognition) -collaborative teams, e.g. firefighters -multiple groups, e.g. “multi-agency situation awareness” -communities of interest e.g. Linked-In groups -broader society e.g. See, click, fix, Placespeak -ad-hoc collections e.g. flashmobs Last, try to“Close-couple” human and active computational agents -some real-time strategy games -highly-skilled computer users Major Claim 2: Thinking a
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