منابع مشابه
Statistical Features of Seismic Noise-Field
We present a preliminary study of the dependence of the fractal features of the soil motion due to seismic noise on the near-surface geology in the frequency range from 1 Hz to ∼ 40 Hz. In detail, we have investigated the 3-d average squared soil displacement 〈r〉 and the distribution function of the displacement fluctuations in different geological sites. The anomalous scaling of the average sq...
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Numerical information can be perceived at multiple levels (e.g., one bird, or a flock of birds). The level of input has typically been defined by explicit grouping cues, such as contours or connecting lines. Here we examine how regularities of object co-occurrences shape numerosity perception in the absence of explicit grouping cues. Participants estimated the number of colored circles in an ar...
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Numerical information can be perceived at multiple levels of abstraction (e.g., one bird, or a flock of birds). The unit of input for numerosity perception can therefore involve a discrete object, or a set of objects grouped by shared features (e.g., color). Here we examine how the mere co-occurrence of objects shapes numerosity perception. Across three between-subjects experiments, observers v...
متن کاملSeismic noise emission induced by seismic waves
The in situ rock undergoing different kinds of deformation accumulates elastic energy that can be released spontaneously o r under artificial effect. Triggering of energy can also be performed by means of a dynamic excitation caused by elastic waves. W e carried out special field investigations with the use of seismic vibrators (Vibroseis-like sources) to study the effect of the energy release ...
متن کاملStatistical Regularities Attract Attention when Task-Relevant
Visual attention seems essential for learning the statistical regularities in our environment, a process known as statistical learning. However, how attention is allocated when exploring a novel visual scene whose statistical structure is unknown remains unclear. In order to address this question, we investigated visual attention allocation during a task in which we manipulated the conditional ...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 2012
ISSN: 0375-9687
DOI: 10.1143/ptps.194.193