Modern western square dance of "patter calls" and "singing calls", the two types of square dance calls. The logos shown on the right are the international square dance logo and the modern Alliance of Round, Traditional and Square-Dance logo. Modern western square dancing is a non-competitive activity. There are no dance competitions, and apart from fun events, no prizes are ever offered or sought for 'best dancer' or 'best square'. Particularly at the 'challenge' levels there is large degree of personal satisfaction to be gained from the problem solving element of completing a dance. At all levels the main elements are to enjoy the
Search activity concept Search activity concept Search activity concept (SAC) is a psychophysiological concept that integrates subject’s behavior, resistance to stress and deteriorating factors, pathogenetic mechanisms of different mental and psychosomatic disorders, REM sleep functions, brain monoamines activity and brain laterality. The term SAC was coined during the 1970s by V.S. Rotenberg together with V.V. Arshavsky on the basis of the physiological investigations on humans and animals according to the role of different forms of behaviour in body resistance to stress and diseases. SAC distinguishes the following types of behaviour: All forms of behaviour that contain SA belong to coping and increase the