Title :
Measurement of visual lobe dimensions with a simultaneous foveal task
Author :
Chan, Alan H S ; Courtney, Alan J.
Author_Institution :
Dept. of Manuf. Eng., City Univ. of Hong Kong, Hong Kong
Abstract :
This experiment studied the effects of different levels of foveal cognitive load on the dimensions of the visual lobe. The dimensions of hard shell visual lobes were determined at the 50% detection threshold. The number of correct targets detected seemed unaffected by the foveal load in the near periphery but a decrement occurred beyond 7.7°, which indicates that there is no influence on the 50% hard-shell lobe value. But the tunnel vision found beyond this eccentricity decreases the detection probability of the soft-shell lobe. The target detection percentages obtained at no foveal load condition may give overestimates of detection probability for search condition with high foveal cognitive load
Keywords :
biomedical measurement; probability; visual perception; 50% detection threshold; detection probability; foveal cognitive load; hard shell lobes; near periphery; simultaneous foveal task; soft-shell lobe; tunnel vision; visual lobe dimensions; Aerospace industry; Aircraft; Computer displays; Electronics industry; Human factors; Inspection; Manufacturing; Object detection; Printed circuits; Shape;
Conference_Titel :
Systems, Man, and Cybernetics, 1996., IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-3280-6
DOI :
10.1109/ICSMC.1996.565474
