Colloquium Details
Faculty Research Colloquium-An Introduction to Cognitive Modeling for Human-Computer
Interaction, and Recent Research Advances in Understanding Multitasking Behavior
as Revealed Through Cognitive Modeling and Eye Tracking
| Author: | Anthony Hornof University of Oregon |
|---|---|
| Date: | October 26, 2010 |
| Time: | 15:30 |
| Location: | 220 Deschutes |
| Host: | CIS Faculty |
Abstract
There will be two parts to this talk. The first part of the talk will introduce some of the basic ideas and assumptions of computational cognitive modeling, so that the second part of the talk will make sense to a general computer science audience. The second part of the talk will present recent research on computational cognitive modeling of multimodal multitasking.
The first part of the talk will present fundamental ideas of cognitive modeling such as the goals of cognitive modeling, building theory to explain human data, speed-accuracy tradeoffs, stage models in cognitive psychology, cognitive architectures, exploratory versus predictive models, and cognitive strategies.
The second part of the talk will present high fidelity human performance data, most notably detailed eye movement data, that reveal the complex overlapping of perceptual and motor processes between two competing tasks in a dual task scenario. The dual task is something like responding to interacting with an onboard navigation system while driving. The data permit a detailed evaluation of how people overlap perceptual processing (visual and auditory) with motor activities (eye and hand movements). Three models will be presented: (a) A hierarchical task-switching model in which each task locks out the other; the model explains reaction time but does not account for eye movement data. (b) A maximum-perceptual-overlap model that maximizes parallel processing and predicts the trends in the eye movement data, but performs too quickly. (c) A moderately-overlapped model that introduces task-motivated constraints and predicts both reaction time and eye movement data. The best-fitting model demonstrates the complex task-constrained interleaving of perceptual and motor processes in a time-pressured dual task.
Biography
Dr. Hornof's biography is available at: ix.cs.uoregon.edu/~hornof/.