Peter J. Bex

TL;DR: Contrast sensitivity defines the threshold between the visible and invisible, which has obvious significance for basic and clinical vision science and computer testing is becoming more popular because it offers efficient adaptive measurement of threshold for a wide range of stimuli.

TL;DR: It is argued that these observations are consistent with changes in the activity within spatial-frequency channels caused by the higher-order phase structure of natural images that is responsible for the presence of edges and specularities.

TL;DR: It is reported that contrast sensitivity is quite different under laboratory than natural viewing conditions: adaptation or masking with natural scenes attenuates contrast sensitivity at low spatial and temporal frequencies, and results suggest that sensitivity to spatial structure in natural scenes depends on the distribution of local edges as well as the local amplitude spectrum.

TL;DR: Computational modeling reveals that perceived position in the presence of flankers follows a weighted average of noisy target- and flanker-line positions, rather than a substitution of flanking-features into the target, as has been proposed previously.

TL;DR: The Tobii Eyex Controller has the potential to further the dissemination of eye tracking technology to a broad audience, and could be a valuable asset in consumer and gaming applications as well as a subset of basic and clinical research settings.