Richard Feynman, one of the greatest physicists became famous for his discoveries concerning quantum electrodynamics and for his lectures. His views on science appear to be very simple, common-sense, but they present the essence of the problem. What he values in science the most is the freedom of thinking and a sort of reasonable courage, which enable one to oppose earlier authorities. When it comes to education, the most important is to teach the ability to observe the nature around.

Masked stimuli can affect the preparation of a motor response to subsequently presented target stimuli. Under some conditions, reactions to the main stimulus can be facilitated or inhibited when preceded by a compatible prime . In the majority of studies in which inverse priming was demonstrated arrows pointing left or right were used as prime and targets. There is, however, evidence that arrows are special overlearned stimuli which are processed in a favorable way. Here we report three experiments designated to (...) test whether the “arrowness” of primes/targets is a sufficient condition for inverse priming. The results clearly show that although inverse priming appeared when non-arrow shapes were used, the magnitude of the priming effect was larger with arrows. The possible reasons for this effect are discussed. (shrink)