Publications of Place that refer to Vygotsky (1934). Thought and Language (English translation by A. Kozulin).

Place, U. T. (1992f). Two concepts of consciousness: the biological/private and the linguistic/social. Acta Analytica, 7(8), 53-72.
How much of the mental life which we attribute to ourselves and our fellow human beings should we attribute to other creatures, particularly those mammals to which we are most closely related in evolutionary terms, given that such creatures do not communicate with one another by means of anything resembling human natural language?
The paper approaches this question historically by considering the positions taken by Aristotle, Descartes, the post-Darwinians such as Romanes, the behaviorists down to Skinner, and contemporary philosophers such as Davidson and Fodor. A distinction is drawn between two concepts of consciousness: the biological/private which I argue we should not hesitate to attribute to all warm-blooded vertebrates and the linguistic/social which is exclusively human.
The concept of consciousness as biological and private is the 'consciousness' of traditional introspective psychology and of 'Is consciousness a brain process?' (Place 1956). It comprises the phenomena of selective attention, conceptualization, mental image formation, emotional reaction and motivation. The concept of consciousness as linguistic and social is the consciousness of Hegel, Marx, Vygotsky, Skinner and much contemporary philosophical psychology. It consists of an integrated system of propositional attitudes (beliefs) all of which are either formulated or susceptible to formulation as sentences in natural language (Skinner's "contingency-specifying stimuli" or "rules").
Download: 1992f Two Concepts of Consciousness the Biological Private and the Linguistic Social.pdf

Place, U. T. (2000c). The role of the hand in the evolution of language. Psycoloquy, 11(7), January 23.
This article has four sections. Section I sets out four principles which should guide any attempt to reconstruct the evolution of an existing biological characteristic. Section II sets out thirteen principles specific to a reconstruction of the evolution of language. Section III sets out eleven pieces of evidence for the view that vocal language must have been preceded by an earlier language of gesture. Based on those principles and evidence, Section IV sets out seven proposed stages in the process whereby language evolved: (1) the use of mimed movement to indicate an action to be performed, (2) the development of referential pointing which, when combined with mimed movement, leads to a language of gesture, (3) the development of vocalisation, initially as a way of imitating the calls of animals, (4) counting on the fingers leading into (5) the development of symbolic as distinct from iconic representation, (6) the introduction of the practice of question and answer, and (7) the emergence of syntax as a way of disambiguating utterances that can otherwise be disambiguated only by gesture.
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Download: 2000c The Role of the Hand in the Evolution of Language.pdf