منابع مشابه
Picturing peripheral acuity.
The grain of the retina becomes progressively coarser from the fovea to the periphery. This is caused by the decreasing number of retinal receptive fields and decreasing amount of cortex devoted to each degree of visual field (= cortical magnification factor) as one goes into the periphery. We simulate this with a picture that is progressively blurred towards its edges; when strictly fixated at...
متن کاملAnisotropies in peripheral vernier acuity.
Vernier acuity for short horizontal, vertical and oblique target lines was measured in many locations in the periphery of the visual field in normal human observers. In the 10 deg periphery, the average alignment threshold with oblique vernier lines in eight locations for three observers was 2.29 times higher than that with vertical and horizontal target lines. This oblique effect was found eve...
متن کاملThe Peripheral Vistjal Acuity of 100 Subjects
Acuity curves for periphed vision are well known, t,hose of Wertheim (3) and Koester ( 1 j t.Jeing freyuent~ly reproduced. Since their findings nearly fifty years ago the subject has been investigated by numerous workers whose results have been reviewed bv Traquair (2j who lists the data of some 28 investigations by 1 1 workers. AltJhough their met)hods were essentially the same the results dif...
متن کاملThe Peripheral Vistjal Acuity of 100 Subjects
Acuity curves for periphed vision are well known, t,hose of Wertheim (3) and Koester ( 1 j t.Jeing freyuent~ly reproduced. Since their findings nearly fifty years ago the subject has been investigated by numerous workers whose results have been reviewed bv Traquair (2j who lists the data of some 28 investigations by 1 1 workers. AltJhough their met)hods were essentially the same the results dif...
متن کاملPicturing Pacific Prehistory
This thesis examines similarities and differences between rock-art sites in Vanuatu and the broader western Pacific region, and situates the results within the framework of Pacific prehistory. Prior to this thesis, regional models of rock-art in the western Pacific were founded on corresponding distributions of non-motif variables, such as technical classes (painting or engraving), topographic ...
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ژورنال
عنوان ژورنال: Perception
سال: 1998
ISSN: 0301-0066,1468-4233
DOI: 10.1068/p270817