Place, U. T. (1988h). Pre-linguistic and post-linguistic concepts. [Presentation to the Generalisation Group, Department of Psychology, University College of North Wales, Bangor at 10 March 1988 and to the Department of Psychology, Trinity College, Dublin at 11 March 1988.]
Note:
After the presentation revised by the author. The last revision is from 24^th March 1999. The central argument of the paper has not been revised.
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Download: 1988h Pre-Linguistic and Post-Linguistic Concepts.pdf

Place, U. T. (1989f). Two concepts of consciousness: The biological/private and the linguistic/social. Revista mexicana de análisis de la conducta= Mexican journal of behavior analysis, (Extra 3), 69-88.
[Abstract]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").
Note:
The publication date, 1989, can't be correct, but it is the date used by the journal. After publication the author revised the paper, see Place 1992f
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Download: 1989f Two Concepts of Consciousness (Revista Mexicana de Analisis de la Conducta).pdf

Place, U. T. (1989h). Relational frames and the role of logic in rule-governed behaviour. [Paper presented at the Annual Conference of the Experimental Analysis of Behaviour Group, Cambridge, 1989. Revised in 1997.]
[Abstract]The concept "relational frame" has been proposed by Steve Hayes (1991) as a higher order category in which Murray Sidman's concept of "equivalence class" is subsumed as a special case. Like equivalence, the relational frame concept was originally conceived as an interpretation of the behaviour of human subjects on a matching to sample task. While not denying the reality of relational frame abstraction in the case of intelligent human adults, it is suggested that this may be an over intellectual interpretation of the equivalence responding of children and less intelligent adults. It is proposed that the relational frame concept should instead be seen as an important contribution (a) to relational logic, and (b) to our understanding of the role of logic in rule governed behaviour, and that the ability to abstract relational frames is something that appears much later in the process whereby linguistic competence is acquired than equivalence class responding on the matching to sample task.
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Download: 1989h Relational Frames and the Role of Logic in Rule-Governed Behaviour.pdf

Place, U. T. (1992f). Two concepts of consciousness: the biological/private and the linguistic/social. Acta Analytica, 7(8), 53-72.
[Abstract]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").
Note:
The download is a version revised after publication by the author.
[References]  [Talks]  [4 citing publications]  
Download: 1992f Two Concepts of Consciousness the Biological Private and the Linguistic Social.pdf

Place, U. T. (1995/6). Symbolic processes and stimulus equivalence. Behavior and Philosophy, 23/24, 13-30. www.jstor.org/stable/27759337
[Abstract]A symbol is defined as a species of sign. The concept of a sign coincides with Skinner's (1938) concept of a discriminative stimulus. Symbols differ from other signs in five respects: (1) They are stimuli which the organism can both respond to and produce, either as a self-directed stimulus (as in thinking) or as a stimulus for another individual with a predictably similar response from the recipient in each case. (2) they act as discriminative stimuli for the same kind of object for all members of the verbal community within which they function as symbols; (3) they acquire their properties by virtue of arbitrary social convention rather than any natural and intrinsic connection between the sign and what it is a sign of; (4) competent members of the verbal community can both produce the appropriate symbol in response to a naturally occurring sign of the presence of the object or a sample of the kind of object which the symbol stands for and select the appropriate object when presented with the symbol; (5) they form stimulus equivalence classes of the kind demonstrated in the matching-to-sample task (Sidman, 1971; Sidman and Tailby, 1982) both with other symbols having the same meaning and, more important, with the naturally-occurring non-symbolic signs of the presence of the object or kind of object which the symbol stands for.
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Download: 1995-6 Symbolic Processes and Stimulus Equivalence.pdf

Place, U. T. (2000c). The role of the hand in the evolution of language. Psycoloquy, 11(7), January 23. www.cogsci.ecs.soton.ac.uk/cgi/psyc/newpsy?11.007
[Abstract]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

Place, U. T. (2000g). From icon to symbol: An important transition in the evolution of language [Abstract]. Proceedings of the 3rd International Evolution of Language Conference (pp. 183-184). École Nationale Supérieure des Télécommunications. www.infres.telecom-paristech.fr/confs/evolang/actes/_actes56.html
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Download: 2000g From Icon to Symbol - An Important Transition in the Evolution of Language.pdf