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Reference
Using Language Complexity to Measure Cognitive Load for Adaptive Interaction Design
M. Asif Khawaja, Fang Chen, Nadine Marcus
IUI 2010 - Hong Kong
Summary
This paper attempts to discover some correlation between language complexity and cognitive load. The long term focus is that when speech technology is a able, a system could detect a user’s cognitive load through their words. The paper inspected transcribed speech data from bushfire response teams during both high and low cognitive load experiences. The paper hypothesized that increased cognitive load would lead to lower complexity in vocabulary. Additionally the paper hypothesizes that easy tasks will result in short simple sentences opposed to more difficult tasks which will have longer sentences. As predicted increased cognitive load led to lower complexity in vocabulary. However, there was an increasing trend in complex word ratio showed a increase with cognitive load.
Analysis
This work was interesting, as it is evident in everyday life that humans alter their speaking patterns and word choices depending on the situation. I would have enjoyed seeing a study focused on pauses, tone, and volume of speech -- as these are attributes which supply quite a bit of information and that could be somewhat measurable in realtime with current technology. Also interesting would be the study of cultural differences in patterns associated with cognitive load. This work is very motivating of future studies and areas of study.
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