This lower frequency from the moving source can be attributed to the time dilation effect and is often called the transverse Doppler effect and was predicted by relativity. Experimental testing of time dilation A comparison of muon lifetimes at different speeds is possible. In the laboratory, slow muons are produced; and in the atmosphere, very fast moving muons are introduced by cosmic rays. Taking the muon lifetime at rest as the laboratory value of 2. An example is Rossi and Hall , who compared the population of cosmic-ray-produced muons at the top of a mountain to that observed at sea level.
In the theory proposed by Andreas Demetriou , with his colleagues, all of these factors are systematically studied. The first is the level of processing potentials which involves information processing mechanisms underlying the ability to attend to, select, represent, and operate on information. The other two of levels involve knowing processes, one oriented to the environment and another oriented to the self. The general model of the architecture of the developing mind integrating concepts from the theories of Demetriou and Case. Processing potentials[ edit ] Mental functioning at any moment occurs under the constraints of the processing potentials that are available at a given age.