Data Analysis

GazeTracker™ features both data analysis and visualisation tools that can be used to study the data collected in any analysis mode. Tools include:

Analysis

• LookZone: understand the order in which people process the stimuli and the duration for which people observe different areas of the stimuli with user-definable regions of interest.
• Fixation: analyse metrics based on where the user has fixated, such as average fixation time or number of fixations.
• Data Export: export a variety of data and metrics, rangong from raw data to fixations, either directly into Excel, or to a comma delimited file for easy import into statistical software of your choice.
• Multiple Subject Analysis: perform analyses across many subjects at one time, greatly reducing the effort needed to analyze eye-tracking data.

Data Visualization

• GazeTrail: visually show all collected data and fixations by overlaying this data on a stimulus in an easily customizable manner.
• Playback: performing a real-time playback of all captured eye-gaze, mouse, and keyboard data with a red X showing where the test subject was looking. Playback may occur on the screen and be written to an AVI file.
• Graphing: GazeTracker™ has a variety of methods for researchers to graph and view their data, described below.

Graphing

GazeTracker™s primary methods of graphing data include:

• Pupil Dilation Graphs
• Automated Excel™ Graphs
• 3D Graphing
• LookZone Order Graph

Pupil Dilation Graphs

Pupil graphs show the captured fluctuations in pupil dilation over time.

Automated Excel™ Graphs

GazeTracker™ has the ability to automatically generate a variety of graphs in Microsoft Excel™.

3D Graphing

3D graphing offers a topographical map of the eye-tracking data, or it can combine a bar chart with a 3D view of the stimulus. A topographical map creates mountains and valleys directly on the stimulus based on where subjects looked. 3D bar graphing raises portions of the stimulus where LookZones are located. The height of the LookZones indicates the total time the zone was observed. Pictured above is a 3D bar analysis of a website.

LookZone Order Graph

A LookZone Order graph depicts a timeline showing the order and duration in which a test subject observed each region of interest.

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