TY  - JOUR
PY  - 2002//
TI  - Reaction times as an index of visual conspicuity when driving at night
JO  - Ophthalmic and physiological optics
A1  - Plainis, S.
A1  - Murray, I. J.
SP  - 409
EP  - 415
VL  - 22
IS  - 5
N2  - Conspicuity refers to the visibility of objects that are either close to threshold or viewed in a cluttered environment. Conventional, threshold-based tests of vision are unlikely to be related to target visibility, because visual systems behave differently under supra-threshold and close-to-threshold conditions, or when low luminance levels are used. In these experiments, Reaction Times (RTs) are tested under a wide range of contrasts, luminances and spatial frequencies commonly encountered in the real world. We show that RTs are closely related to sensitivity and can therefore provide a method of measuring supra-threshold visual performance. The data are interpreted in terms of visual performance when driving, where a reduction in target visibility leads to increases in processing time.<p />  <p>Language: en</p>
LA  - en
SN  - 0275-5408
UR  - http://dx.doi.org/
ID  - ref1
ER  -