Abstract

Cognitive activity, which essentially consistsof the use of signs, does not only depend onthe internal (mental, or brain) processes. Thefirst part of the paper presents severalversions of the idea of the external andcultural organization of individual''s mentalprocesses. The second part of the paperconsiders a future development of cognitivescience as a science of the extended andsocially constructed mind. KazimierzTwardowski''s theory of intentionality and histheory of actions and products provide theconceptual framework of the undertaken analysis.