I analyse three most interesting and extensive approaches to theoretical models: classical ones—proposed by Peter Achinstein and Michael Redhead, and the rela-tively rareanalysed approach of Ryszard Wójcicki, belonging to a later phase of his research where he gave up applyingthe conceptual apparatus of logical semantics. I take into consideration the approaches to theoretical models in which they are qualified as models representing the reality. That is why I omit Max Black’s and Mary Hesse’s concepts of such models, as those two (...) concepts belong to the analogue model group if we consider the main function of the model of a given class as its classification criterion. My main focus is on theoretical models with representative functions as these very models and, in a broader context, the question of representation. (shrink)

In the article the models which are reconstructed in the philosophy of science from the praxis of science are divided into two main types: 1) analogue and metaphor-based models and 2) representational models. I examine functions of the models of both the types, and demonstrate that the models of type 1) are used in science as instruments of acquiring new knowledge on the basis of a knowledge accepted earlier; and models of type 2) are used to create cognitive “images” of (...) reality. I demonstrate that in the philosophy of science the problem areas generated by two functions of models are entirely isolated one from another. Whereas they are non-separably linked one to another. I postulate the necessity of linking them in one unified conception of models, and then in one conception of science. Therefore such a conception of models is needed which will explain how models play two functions simultaneously, i.e. how they function in the context of discovery and how they rep-resent reality. (shrink)

This article introduces a special issue on mechanisms in language evolution research. It describes processes relevant for the emergence of protolanguage and the transition thereof to modern language. Protolanguage is one of the key terms in the field of language evolution, used to designate a hypothesised intermediate stage in the emergence of language present in extinct hominins: qualitatively different from non-human primate communication in possessing some, but not all, of the features that characterise modern language. Much debate in language evolution (...) focuses on the exact delineation of these features, as well as the means whereby the transitions occurred: first from non-human primate communication systems to protolanguage, and then from protolanguage to modern language. In what follows, we first propose a comprehensive typology of protolanguage debates, taking into account the postulated structural organisation of protolanguage, its functions, and its communicative modality. This makes it possible to show how a specific focus on mechanisms and processes deemed relevant for the emergence of these features allows us to assess the explanatory scope of the existing theories of protolanguage. (shrink)