A critique of van Fraassen's voluntaristic epistemology

Van Fraassen's epistemology is forged from two commitments, one to a type of Bayesianism and the other to what he terms voluntarism. Van Fraassen holds that if one is going to follow a rule in belief-revision, it must be a Bayesian rule, but that one does not need to follow a rule in order to be rational. It is argued that van Fraassen's arguments for rejecting non-Bayesian rules is unsound, and that his voluntarism is subject to a fatal dilemma arising from the non-monotonic character of reasoning.     

A study of masked form priming in picture and word naming

We report a series of picture- and word-naming experiments in which the masked priming paradigm with prime exposures brief enough to prevent prime identification were used. Experiment 1 demonstrates that the prior presentation of the same word prime facilitates both picture and word naming independently of target frequency. In Experiments 2 and 3, primes that were pseudohomophones of picture targets produced facilitatory effects compared with orthographic controls, but these orthographically similar nonword primes did not facilitate picture naming compared with unrelated controls. On the other hand, word targets were primarily facilitated by orthographic prime— target overlap. This marked dissociation in the priming effects obtained with picture and word targets is discussed in relation to different explanations of masked form priming effects in visual word recognition and current models of picture and word naming.     

THE IMPACT OF FUNCTIONAL ANALYSIS METHODOLOGY ON OUTPATIENT CLINIC SERVICES

The impact of the article by Iwata, Dorsey, Slifer, Bauman, and Richman (1982) on research in severe behavior disorders has been impressive. Equally impressive, however, but not as fully recognized, has been the impact of this methodology on the routine professional activities of those who employ functional analysis methods in their daily work. As one example of this impact, we describe the evolution of assessment procedures based on “brief functional analysis” methodology in our outpatient clinics. Less apparent have been the collateral effects that occur from using these procedures. Interactions with clients and colleagues have changed in ways that result in increased positive reinforcement. In this article, we briefly discuss the positive impact functional analysis has had on one specific work behavior—outpatient clinic assessment—and describe some of the generalized effects we have experienced in related aspects of our daily professional activities.     

Using pretreatment and posttreatment assessments to enhance and evaluate existing treatment packages.

Pretreatment assessment data were used to enhance an existing treatment package to reduce aggression and to increase positive social interactions between a young boy and his peers. Based on the results of pretreatment assessments, additional reinforcement (differential reinforcement of alternative behavior with adult attention) and punishment (performing a nonpreferred task during time-out) components were added to an existing nonresetting differential reinforcement of other behavior (access to peers unless aggression occurred) plus time-out procedure. A posttreatment component analysis of the additional treatment components indicated that the reinforcement component facilitated positive social interactions and the punishment component suppressed aggression towards peers.     

The role of inhibition in a spreading-activation model of language production. I. The psycholinguistic perspective

Spreading-activation models of language production are only workable to the extent that they manage to solve the heat death problem, i.e., the danger that too many nodes in the network are overactive at the same time. Therefore, a delicate balance between activational and deactivational forces has to be struck. Of the three prevailing dampening mechanisms of decay, self-inhibition and other-inhibition, the latter has been selected for closer scrutiny. The key proposal of this two-part article is that activation-based models of language production cannot afford to do without an inhibitory component, in particular lateral inhibition among nodes of the same level. Psycholinguistic evidence is reviewed in an attempt to insulate inhibitory from excitatory mechanisms. Although it is difficult in normal adult language use to distinguish between the effects of excessive activation and insufficient inhibition, some patterns from language acquisition and aphasia can be shown to follow from inhibitory rather than excitatory problems, thus demonstrating the reality of inhibition. In a system of activational and deactivational forces, other-inhibition is claimed to have the excitatory mechanism of syntax as its natural opponent. It is finally argued that other-inhibition offers an explanation for some puzzling findings from the experimental literature.     

Cognitive and projective measures of differentiation and their relationship to empathy

The present investigation compared cognitive and projective methods of assessing “differentiation,” Witkin's Embedded Figures Test (EFT) and Blatt's Concept of the Object Scale (COS), and reexamined expectations concerning the relationship between level of differentiation and capacity for empathy. Whether lesser or greater differentiation would promote empathy was of specific interest. Two forms of empathy were investigated, an “affective” form assessed by the Mehrabian Empathy Scale and a “cognitive” form assessed by the Hogan Empathy Scale. Expected sex differences in differentiation and empathy were also investigated. Results demonstrated consonance between COS and EFT measures of differentiation within the male sample only (p < .05). Individuals classified by EFT as relatively less differentiated (“field dependent”) produced more part object responses (p < .02) and those classified as more differentiated (“field independent”) showed a trend toward more whole object responses (p < .10) on the COS. Associations between measures of differentiation and empathy reached significance or showed trends in the male group only. Men with relatively lesser differentiation on the EFT (“field dependent”) showed greater “affective empathy” (p < .10) and men with greater differentiation on the COS showed greater “cognitive” empathy (p < .05). Women demonstrated higher levels of “affective” empathy than men (p < .001).     

Bridging the gap between long- and short-term group psychotherapy: A viable treatment model

The purpose of this paper is to support the efficacy of short-term insight-oriented, process group psychotherapy and to present a unique treatment model. The format for a time-limited, dynamic group therapy model with the opportunity to recontract for additional segments will be discussed. Evidence will be presented that supports the effective use of this model for providing continuity of care for patients with both long- and short-term treatment goals. The referral process,contracting for appropriate goals, group development, the cotherapy relationship, and other specific treatment issues will be addressed.     

Productive and perceptual constraints on speech-error correction

Summary Two incentives underlie the present study on speech-error detection and correction. First, this area of research has up to now almost completely been approached through experimental techniques. Since it is not at all clear whether speakers' detection and correction behaviour is identical inside and outside the laboratory, a comparison is made between experimental and naturalistic data. While the experimental materials are taken from the literature, the naturalistic findings are based upon the analysis of a corpus of more than 6,000 German slips of the tongue. It is shown that the same trends emerge in both data sets, thereby confirming the ecological validity of the experimental, and the reliability of the naturalistic, results. Secondly, the question arises as to the reasons for error correction and its occasional failure. Two working hypotheses are explored. Speakers fail to correct their errors because they have not detected them or because they assume that the error does not interfere with the listener's decoding process. The former reason is understood as a productive, the latter as a perceptual, constraint on the correction of self-produced errors. The empirical analysis discloses a large overlap between the effects of perceptual and productive constraints. However, whereas perceptual constraints can be subsumed under productive ones, the reverse is not possible. On the basis of this outcome it is argued that productive constraints are primary, and perceptual constraints secondary, reference points for error correction. Although the empirical data do not require the postulation of perceptual constraints, it is suggested that both speaker- and listenerbased aspects form part of à highly integrated processing system.