Win Stay, Lose Shift as well as imitation strategies for iterated games rely on an aspiration level. With both learning rules a move is repeated unless the pay-o fell short of the aspiration level. I investigate social adaptation mechanisms for the aspiration level and their impact on the eÆciency of learning in a large population of agents that repeatedly play one round of a symmetric 2 2 game...

The present study examined adaptations in the planning of initial grasp postures during a multi-segment object manipulation task. Participants performed a grasping and placing task that consisted of one, two, or three movement segments. The position of the targets was manipulated such that the degree of object rotation between the home and temporally proximal positions, and between the temporal...

abstract: iran passed wide range of events over her controversies history. it has great special geopolitics position, natural resources and cultural values. iran is in asia and connects asia to europe. iran as relational bridge has an important role so that it could be an important center during first and second world war for enemies' forces in spite of explicit neuter declaration from ira...