Eye-typing performance results are reported from controlled studies comparing an on-screen keyboard and EyeWrite, a new on-screen gestural input alternative. Results from the first pilot study suggest the presence of a learning curve that novice users must overcome in order to gain proficiency in EyeWrite's use (requiring practice with its letter-like gestural alphabet). Results from the second longitudinal study indicate that EyeWrite's inherent multi-saccade handicap (4.52 saccades per character, frequency-weighted average) is sufficient for the on-screen keyboard to edge out EyeWrite in speed performance. Eye-typing speeds with EyeWrite approach 5 wpm on average (8 wpm attainable by proficient users), whereas keyboard users achieve about 7 wpm on average (in line with previous results). However, EyeWrite users leave significantly fewer uncorrected errors in the final text, with no significant difference in the number of errors corrected during entry, indicating a speedaccuracy trade-off. Subjective results indicate that participants consider EyeWrite significantly faster, easier to use, and prone to cause less ocular fatigue than the on-screen keyboard. In addition, EyeWrite consumes much less screen real-estate than an on-screen keyboard, giving it practical advantages for eye-based text entry.

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A study was conducted, with 180 participants, to evaluate whether individual differences in basic cognitive abilities (i.e., spatial and verbal ability), attitudes towards computers, and prior experience with computers influence peoples' ability to search for and find information on the internet. Spatial and verbal ability, as well as attitudes towards computers, influenced the accuracy and speed of internet search. Current analyses are focusing on whether cognitive abilities and attitudes influence component search processes, as well as overall accuracy and speed.

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