Tham khảo tài liệu 'biomimetics - biologically inspired technologies - yoseph bar cohen episode 1 part 5', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 102 Biomimetics Biologically Inspired Technologies evaluation before being finally executed . This is the theory s explanation for the origin of all nonautonomic animal behavior. As with almost all cognitive functions actions are organized into a hierarchy where individual symbols belonging to higher-level lexicons typically each represent a time-ordered sequence of multiple lower-level symbols. Evolution has seen to it that symbols which when expressed alone launch action commands that could conflict with one another . carrying out a throwing motion at the same time as trying to answer the telephone are grouped together and collected into the same lexicon usually at a high level in the action hierarchy . That way when one such action symbol wins a confabulation and has its associated lower-level action commands launched the others are silent thereby automatically deconflicting all actions. This is why all aspects of animal behavior are so remarkably focused in character. Each complement of our moving and thinking hardware is by this mechanism automatically restricted to doing one thing at a time. Dithering rapidly switching from one decisive action behavioral program to another and then back again illustrates this perfectly. The thought processes at the lowest level of the action hierarchy are typically carried out unconditionally at high speed. If single symbol states result from confabulations which take place as part of a thought process these symbols then decide which actions will be carried out next this happens both by the action commands the expression of these symbols launch and by the influence of these symbols acting through knowledge links on the outcomes of subsequent confabulations for which these symbols act as assumed facts . Similarly for movements as ongoing movements bring about changes in the winning symbols in confabulations in somatosensory cortex which then alter the selections of the next action symbols in modules in motor and premotor .
