The human visual threshold depends on direction and strength of a weak magnetic field

被引：13

作者：

Thoss, F ^{[1
]}

Bartsch, B ^{[1
]}

机构：

[1] Univ Leipzig, Carl Ludwig Inst Physiol, D-04103 Leipzig, Germany

来源：

JOURNAL OF COMPARATIVE PHYSIOLOGY A-NEUROETHOLOGY SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY | 2003年 / 189卷 / 10期

关键词：

compass orientation; geomagnetic field; radical-pair mechanism; threshold estimation; visual sensitivity; LIGHT; MAGNETORECEPTION; COMPASS; SYSTEM; SENSITIVITY; PIGEONS; MODEL; BIRDS;

D O I：

10.1007/s00359-003-0450-y

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Completing our investigations concerning influences of weak magnetic fields on the visual discrimination threshold, we have investigated 30 subjects (20 female, 10 male) under rotation of the geomagnetic field without change in field strength. We related the thresholds to the values measured in the unchanged field. Comparison with a control experiment shows that correspondence between viewing and field direction results in a significant decrease of the threshold. The significance is lost if the angle between the directions is set to 20degrees. On the basis of these and our earlier results an attempt is made to give a very simple description of the connection between field direction, field strength, and the change in the visual discrimination threshold.

引用

页码：777 / 779

页数：3

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