• Publications
  • Influence
Texting while driving: is speech-based text entry less risky than handheld text entry?
TLDR
It is suggested that speech-based text entry disrupts driving, but reduces the level of performance interference compared to text entry with a handheld device, which is an important issue for legislation, automotive interface design and driving safety training. Expand
Colour adaptation modifies the long‐wave versus middle‐wave cone weights and temporal phases in human luminance (but not red‐green) mechanism.
TLDR
The two detection mechanisms were isolated to assess how chromatic adaptation affects summation of L' and M' signals in each mechanism, and phase shifts and changing contrast weights were modelled with phasic retinal ganglion cells. Expand
Range of motion of the wrist: implications for designing computer input devices for the elderly
TLDR
The results suggest that the ageing population (particularly men) may face greater difficulty using an input device such as a mouse that relies on motions of the wrist, because the reduced ROM of the wrists may put the elderly at greater risk of developing cumulative trauma disorders. Expand
Contributions of human long‐wave and middle‐wave cones to motion detection.
TLDR
Threshold contours plotted in cone‐contrast co‐ordinates for the long‐wave (L) and middle‐ wave (M) cones revealed two motion mechanisms: a luminance mechanism that responds to a weighted sum of L and M contrasts, and a spectrally opponent mechanism that reflects a weighted difference. Expand
The impact of age on computer input device use:: Psychophysical and physiological measures
TLDR
Ratings of perceived exertion indicated that older adults perceived greater levels of exertion than younger adults when using the mouse during click-and-drag tasks, implying that the trackball may confer greater benefit for the older computer user. Expand
Short-wave cone signal in the red-green detection mechanism
TLDR
This work shows that the red-green (RG) detection mechanism also receives a weak input from the short-wave (S) cones that supports the L signal and equally opposes M, and predicts that for detection or discrimination, the mechanisms limiting performance do not lie on orthogonal M-L and S axes within the equiluminant color plane. Expand
Texting while driving: is speech-based texting less risky than handheld texting?
TLDR
This study compared the effect of speech-based versus handheld texting on simulated driving performance by asking participants to perform a car following task while controlling the duration of a secondary texting task and suggested that speech- based interaction disrupts driving, but reduces the levels of performance interference compared to handheld devices. Expand
Estimation of mental workload using saccadic eye movements in a free-viewing task
TLDR
The results showed that the SI measure was a more accurate measure of MWL than the pupil diameter measure, indicating that MWL of the person can be estimated by observation of SI eye movements. Expand
Impact of simulated visual impairment on the cognitive test performance of young adults.
TLDR
Reduced contrast sensitivity had a marked effect on the speed but not the accuracy of performance on commonly used cognitive tests, even in young individuals; the implications of these findings are discussed. Expand
The effects of visual magnification and physical movement scale on the manipulation of a tool with indirect vision.
TLDR
A fruitful area for future research is the optimization of hand-control interfaces of tools to maximize movement precision in applications that require a high degree of movement precision. Expand
...
1
2
3
4
5
...