Cooperativity, priming, and 3-D surface detection from optic flow

被引:8
作者
Atchley, P [1 ]
Andersen, GJ [1 ]
Wuestefeld, AP [1 ]
机构
[1] Univ Calif Riverside, Dept Psychol, Riverside, CA 92521 USA
来源
PERCEPTION & PSYCHOPHYSICS | 1998年 / 60卷 / 06期
关键词
D O I
10.3758/BF03211933
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Three experiments were conducted to determine whether the mechanisms responsible for the detection of three-dimensional (3-D) surfaces from optic flow operate in a cooperative manner. The first experiment was conducted to determine whether a hysteresis effect occurs for 3-D surface detection from optic flow. The results of the first experiment demonstrated a hysteresis effect with lower thresholds occurring for decreasing texture density than for increasing texture density. The second experiment used a priming methodology to determine whether this form of cooperativity was based on preactivation of shear detectors or preactivation of 2-D motion detectors. The results suggest that only shear detectors were primed. The third experiment utilized a similar methodology to determine whether a surface representation would produce a priming effect. We found no evidence that the priming effect found in the second experiment was the result of preactivation of a generic representation of the test stimuli. The results of the experiments, considered together, suggest priming of the mechanisms responsible for recovering shear.
引用
收藏
页码:981 / 992
页数:12
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