Place, U. T. (1992b). Is there an operant analysis of animal problem-solving? [Conference presentation, presented at 18th Annual Convention of the Association for Behavior Analysis - May 25-28 1992 - San Francisco, California]. Association for Behavior Analysis. Abstract published in Proceedings of 18th Annual Convention of the Association for Behavior Analysis - May 25-28 1992 - San Francisco, California (p. 155). Society for the Advancement of Behavior Analysis.
[Abstract]In 'An operant analysis of problem-solving', Skinner (1966/1969/1988) develops an account of problem-solving based on the distinction between two different ways in which an organism can learn to adapt to environmental contingencies: (1) contingency-shaped behavior in which the behavior of an organism is progressively shaped by repeated exposure to the contingency itself, and (2) rule-governed behavior in which a verbally competent human being adapts to a contingency by constructing a verbal formula or rule which is said to "specify" the contingency in question. A rule may be constructed, as in the case of contingency-shaped behavior, in the light of repeated exposure to the contingency itself. It may equally well be based on information about the contingency supplied by another speaker, on information derived from a written text, or on an inference from other rules derived from any or all these sources. It is this case where the agent infers a new rule tailor-made for the problem with which he/she is confronted that Skinner has in mind in offering an analysis of problem-solving in these terms. There is a growing body of empirical evidence (Hayes 1989) which confirms the accuracy of Skinner's description of problem-solving as it occurs in the case of verbally competent human beings. But animals also solve problems; and so do pre-verbal human infants. This kind of problem-solving cannot simply be a matter of contingency-shaping, though previous contingency-shaped behavior is the only resource from which a pre-verbal organism can draw in selecting an appropriate problem-solving strategy. It requires some mechanism like that which Köhler (1925) refers to as "insight" whereby the stimulus class which currently controls a particular response class is somehow stretched so as to include the current stimulus situation. The case for postulating such a behavior mediating mechanism within the conceptual framework of radical behaviorism is argued by appealing (a) to the analogy between attending behavior and thinking by talking to oneself, and (b) to the process whose existence is implied by Skinner's (1938) account of "stimulus class" whereby an organism learns to break up its stimulus environment into stimulus classes "along the natural lines of fracture."
Keywords: the natural lines of fracture, stimulus class, rule-governed behaviour, problem-solving, Skinner
[References]  [Talks]  [1 referring publications by Place]  
Download: 1992b Is There an Operant Analysis of Animal Problem-Solving.pdf

Place, U. T. (1992i). Philosophical fashion and scientific progress in the theory of universals. [Unpublished paper. Presented November 5th 1992, Department of Psychology, University of Wales, Bangor; November 26-28, 1992, Conference of the Linguistic Society of Belgium on Conceptual and Linguistic Representation, Antwerp]
[Abstract]Are universals (kinds) something over and above the things (their instances) of which they are kinds? Does the universe come already packaged into kinds of thing, or are the universals which the human and animal mind distinguishes simply the product of the mind's classificatory activity? Whether universals are mind-independent or mind-dependent, are the concepts human beings and other living organisms have of them innate or are they generated wholly or in part by some kind of learning process. In either case, what assurance do we have that our conceptual scheme does not seriously misrepresent the way things are, as Kant puts it, "in themselves." While the tides of philosophical fashion have flowed backwards and forwards between the poles of this debate ever since the time of Plato and Aristotle, it is argued that there is now some reason to think that the current tide which appears to be moving away from platonism and nativism and back towards conceptualism and empiricism may be taking us towards a permanent scientifically-based resolution of the problem. This solution, if that is what it is, gives due weight to both innate factors and learning at the biological level and to social construction at the level of human linguistic communication. It sees Darwin's principle of variation and natural selection as operating as much in the ontogenetic development of our conceptual scheme as in its phylogeny, and as providing the assurance we need that, in B.F.Skinner's words, it takes "account of the natural lines of fracture along which behavior and environment actually break." (Skinner 1938 p.33).
Keywords: conceptualism, connectionism, universals
[References]  [Talks]  
Download: 1992i Philosophical Fashion and Scientific Progress in the Theory of Universals.pdf

Place, U. T. (1996n). A selectionist approach to the problem of universals [Conference presentation, presented in the session 'Conceptual and Philosophical Issues in Behavior Analysis' of the 22nd Annual Convention of the Association for Behavior Analysis, San Francisco, May 27th 1996]. Association for Behavior Analysis.
[Abstract]As it is discussed by philosophers, the problem of universals has two aspects: an ontological aspect and an epistemological aspect. Views on the ontological aspect divide between "realism" which holds that universals are abstract objects, distinct from their instances, with which the organism's concepts must line up if it is to survive and reproduce, and "constructivism" which holds that the organism's concepts are the only universals there are. Views on the epistemological issue divide between "nativism" which holds that concepts are innate, and "empiricism" which holds that they are learned. Most realists are nativists. Most constructivists are empiricists. Selectionist considerations suggest a middle position between these extremes: (1) There are no universals in the absence of a classifying organism (constructivism). (2) There is a significant innate contribution to the organism's system of concepts (nativism). (3) The fine tuning which brings the organism's concepts into line with what Skinner (1938) calls "the natural lines of fracture along which environment and behavior actually break" is a matter of contingency-shaped discrimination learning (empiricism). (4) There are objective constraints which ensure that the concepts so formed line up with "real" similarities and differences between objects, events and states of affairs in the organism's interactions with the environment (realism).
Keywords: universals
[References]  [Talks]  
Download: 1996n A Selectionist Approach to the Problem of Universals.pdf