[The dependence of spatial-motor asymmetry on the nature of the reinforcement]

Spatial-motor asymmetry (SMA) of rats goal-directed running was studied in condition of numerous alternative choices in complex T-maze. In condition of free choices SMA in trained rats depended on reinforcement biological significance, volume and disposition scheme. In condition of non-free choices a change was possible of asymmetry of sequence of goal-directed motor acts adequate to situation, i.e. SMA regulation. Examples of the presence of properties of ego- and allocentric systems in SMA are given. The results of experiments testify to SMA dependence on the motivation of running, to rightfulness of SMA interpretation as behavioural tactics and to non-coming of SMA of goal-directed running to a simple rotation of animals.