One fixates accurately in order to see clearly not because one sees clearly

被引：17

作者：

Steinman, RM ^{[1
]}

Pizlo, Z

Forofonova, TI

Epelboim, J

机构：

[1] Univ Maryland, Dept Psychol, College Pk, MD 20742 USA

[2] Purdue Univ, Dept Psychol Sci, W Lafayette, IN 47907 USA

[3] Univ Med & Dent New Jersey, Dept Ophthalm Imaging, Newark, NJ 07103 USA

来源：

SPATIAL VISION | 2003年 / 16卷 / 3-4期

关键词：

gaze-accuracy; gaze-error; cyclopean; microsaccade; steroacuity; visual-clarity;

D O I：

10.1163/156856803322467509

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Binocular gaze was measured accurately under natural conditions with the Maryland Revolving Field Monitor to determine how visual-clarity affects gaze-accuracy. The gaze of 3 unrestrained, seated subjects (2 presbyopes and 1 myope) was recorded as they tapped 4 LEDs with a long, narrow rod cemented to a thimble worn on their index fingers. They wore positive contact lenses, permitting very clear vision only nearby, within 35 cm. This task was hard. It took more than 7 seconds to complete. Gaze-accuracy varied inversely with target-distance. Gaze was less accurate when targets were nearby, and seen clearly, than when targets were farther away and harder to see. This result was not anticipated. It implies that gaze is accurate in order to see clearly and not because targets can be seen clearly.

引用

页码：225 / 241

页数：17

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