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Several papers have reviewed the literature based on Skinner’s conceptual framework presented in his 1957 book, Verbal Behavior. These reviews have called for more research on the topic of verbal behavior generally and often for more research on particular verbal operants. For example, Sautter and LeBlanc (2006) urged the behavior-analytic community to conduct more research on the intraverbal because of the scant existing literature base at that time. In the current review, we replicate the procedures used by Sautter and LeBlanc focusing specifically on the intraverbal relation and on the literature published in the 10 years since their call for research. We summarize the publication themes, provide graphs of the trends and types of published articles, and offer ideas for future research specific to the intraverbal.

Aphasia is an acquired language impairment that affects over 1 million individuals, the majority of whom are over age 65 (Groher, 1989). This disorder has typically been conceptualized within a cognitive neuroscience framework, but a behavioral interpretation of aphasia is also possible. Skinner's (1957) analysis of verbal behavior proposes a framework of verbal operants that can be integrated with the work of Sidman (1971) and Haughton (1980) to describe the language difficulties individuals with aphasia experience. Using this synthesis of models, we propose a new taxonomy of aphasia based on the observed deficit relations. Assessment and treatment implications are also discussed.

In Verbal Behavior, Skinner (1957) provided a conceptual framework and taxonomy for the controlling variables of language that defined independent verbal operants by their functional relations to antecedents and consequences (rather than by topography or meaning). Although professional interest in this area has recently increased within the behavior analytic community, Skinner's conceptual framework may not yet have fully impacted the experimental literature. This quantitative review of the literature examined the studies on verbal behavior that were empirical in nature, concerned with human verbal behavior, and addressed at least one verbal operant (e.g., mand, tact, echoic, autoclitic, and/or intraverbal behavior) within the experiment. The results of this review suggest that a growing body of research exists to support many of the tenets of Skinner's conceptualization and taxonomy but many areas of verbal behavior research have yet to be addressed. Continued research in this area is crucial for the development and implementation of effective verbal behavior interventions for people with disabilities.

The authors comment on Drash and Tudor's operant theory of autism. Concerns with the theory's face validity and empirical support are presented, along with concerns about four aspects of the theory.

Several important behavioral intervention models have been developed for teaching language to children with autism and two are compared in this paper. Professionals adhering to Skinner's conceptualization of language refer to their curriculum and intervention programming as applied verbal behavior (AVB). Those primarily focused on developing and using strategies embedded in natural settings that promote generalization refer to their interventions as naturalistic teaching approaches (NTAs). The purpose of this paper is to describe each approach and discuss similarities and differences in terms of relevant dimensions of stimulus control. The discussion includes potential barriers to translation of terminology between the two approaches that we feel can be overcome to allow better communication and collaboration between the two communities. Common naturalistic teaching procedures are described and a Skinnerian conceptualization of these learning events is provided.