Binocular summation of chance decisions

被引:4
作者
Yehezkel, Oren [1 ]
Sterkin, Anna [1 ]
Sagi, Dov [2 ]
Polat, Uri [1 ]
机构
[1] Tel Aviv Univ, Sackler Fac Med, Chaim Sheba Med Ctr, Goldschleger Eye Res Inst, IL-52621 Tel Hashomer, Israel
[2] Weizmann Inst Sci, IL-76100 Rehovot, Israel
来源
SCIENTIFIC REPORTS | 2015年 / 5卷
基金
以色列科学基金会;
关键词
CONTRAST;
D O I
10.1038/srep16799
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Seeing with two eyes usually helps one respond faster. Here we show that with ambiguous stimuli, binocular viewing can paradoxically slow down reaction time. This is explained by the observers basing their decision on a noisy neuronal representation within the visual system, with the added noise breaking the symmetry between the two possible interpretations. Binocular integration improves the representation by reducing the noise, increasing ambiguity, and decision time. The neuronal Accumulator (Race) model is applied to quantify the underlying binocular integration. The model accounts for the distributions of reaction times, and predicts suboptimal integration between eyes. We conclude that under ambiguous stimulation neuronal noise within the visual system determines responses.
引用
收藏
页数:6
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