The Integration of Speaker and Listener Responses: A Theory of Verbal Development

The Establishment of Incidental Bidirectional Naming through Multiple Exemplar Instruction: a Systematic Replication

Although many neurotypical children acquire untaught word-object relations incidentally from naturally occurring environmental experiences, many children with and without developmental disabilities require specific intervention. This study examined the effects of rotating listener (match and point) and speaker (tact and intraverbal-tact) responses with added echoics during multiple exemplar instruction (MEI) with training sets of stimuli on the acquisition of Incidental Bidirectional Naming (Inc-BiN). Listener-speaker MEI procedures reported in Hawkins et al. European Journal of Behavior Analysis, 10(2), 265-273, (2009) were replicated with procedural modification, new instructors, and new participants (four preschoolers with and without disabilities). The listener-speaker MEI with added echoics consisted of rotating across four response operants: match-with-echoics, point-with-echoics, tact, and intraverbal-tact responses. We measured the establishment of Inc-BiN through the number of the correct untaught listener (point) and untaught speaker (intraverbal-tact) responses for untaught stimuli during the listener-speaker MEI with added echoics. We found that listener-speaker MEI with added echoics was effective in establishing Inc-BiN for 3 of 4 participants.

A Systematic Review of Emergent Learning Outcomes Produced by Foreign language Tact Training

This systematic review evaluated the effects of foreign tact training on emergent learning outcomes in ten published studies. We also conducted a meta-analysis of aggregate data from seven studies comparing outcomes of foreign tact training with other verbal operant procedures. The preliminary findings indicated foreign tact training produced criterion-level responses in 84 of 106 (79.2%) post-test probes across 37 learners and 55 evaluations of foreign tact training. The meta-analysis results revealed significantly higher within-subjects mean levels of emergent responding following foreign tact training than foreign-to-native intraverbal, native-to-foreign intraverbal, and foreign listener training. Emergent outcomes for adults were not significantly greater than for children. Finally, foreign tact training was slightly more efficient than the other verbal operant procedures, although most of the differences were not statistically significant.

Supplementary Information

The online version contains supplementary material available at 10.1007/s40616-022-00170-z.

The Effect of the Establishment of Conditioned Reinforcement for Reading Content on Second-Graders' Reading Achievement

There remains a gap in the current literature as to how to reliably measure and increase students' "voluntary reading," based on research suggesting a relation between reading amount and reading achievement. We tested the effect of the establishment of conditioned reinforcement for reading via a collaborative shared reading (CSR) conditioning procedure on eight 2nd-grade students with and without learning disabilities and developmental disorders. This conditioning procedure was composed of opportunities for reciprocal reading and collaboration on comprehension and vocabulary tasks related to the reading content, such that partners (teacher-participant or participant-participant) were required to work together. We utilized a combined small-n experimental-control simultaneous-treatment design with a single-case multiple-probe design nested within each small group in order to compare within- and between-group differences for participants in the CSR procedure with a teacher or peer. All participants for whom conditioned reinforcement for reading was established (n = 7) demonstrated gains in reading achievement after a maximum of nine sessions (412 min), with grade-level increases between 0.2 and 2.5 on measures of reading comprehension and between 0.3 and 3.1 on measures of vocabulary. The students in the teacher-yoked condition (n = 3) demonstrated more significant gains in their average increases in achievement, although the peer-yoked procedure was also effective and possibly more viable in a classroom setting. These results suggest that a CSR procedure with a teacher or peer should be considered as a means of increasing the reading achievement of early elementary students via increases in the reinforcement value of reading.

Increasing Requests for Information by Preschoolers with and without Language-Based Disabilities

We report two experiments on the emission of questions to request the names of unfamiliar stimuli by preschoolers. In the first experiment, 19 preschoolers with and without disabilities served as participants. Experiment 1 was a descriptive analysis of whether or not the 19 participants asked questions about unfamiliar pictures and objects in one-to-one and group settings. These were dependent variables in the second experiment as well. Four participants, who did not ask any questions in the first experiment, served as participants in the second experiment. During the intervention, the participants observed the peer confederates (1) ask questions (e.g., “What is that?”), (2) receive information from the experimenter, and (3) receive praise and tokens contingent on asking a question. A multiple probe design across participants was used. The data showed that the participants increased the number of questions when we returned to baseline conditions. Results are discussed in terms of where the reinforcement exists for asking questions about unfamiliar things in one’s environment, and whether this truly measures the “need to know”.

Education for Children With ASD in South Korea: A Case Study

In South Korea, there is currently a massive gap between the demand and the supply of quality applied behavior analysis (ABA) services for children with autism spectrum disorder (ASD) and their families. However, the literature on the implementation and effectiveness of ABA intervention mainly comes from Western countries, and the voices of Asian countries are scarcely heard. The present article reports data collected from the KAVBA Center in Seoul, South Korea, as a direct replication of the CABAS educational model. Eleven 3- to 4-year-old children with ASD were the participants in the study and attended the center for 1 year. Our pre- and postintervention data show that the CABAS model provided an effective and cost-efficient service for children with ASD in South Korea.

Verbal Development, Behavioral Metamorphosis, and the Evolution of Language

Building on Skinner's theory of verbal behavior, research over the last few decades confirmed verbal speaker operants, added the role of the listener, added the identification of speaker and listener interaction between and within individuals, and identified verbal behavior developmental cusps. Meanwhile, comparative biology focused on how and why language evolved in Homo sapiens. Findings about differences in behavior that neurotypical children demonstrated in their verbal development, and even more so in research that identified and established missing verbal behavior cusps, suggested changes analogous to metamorphosis. These striking changes in stimulus control found in the onset of cusps from the preverbal to the fully verbal child led us to an expansion of the concept of metamorphosis from morphology to the domain of behavior. The major findings of this comparative perspective are presented here as they have led us from experimental analyses of verbal development to metamorphosis as complex verbal behavior transformation and finally to a novel hypothesis about the evolution of language based on the concepts and research described here. To our knowledge, this is the first formulation of verbal development as behavioral metamorphosis in the context of evolutionary developmental biology.

Mastery of Echoics in Chinese Establishes Bidirectional Naming in Chinese for Preschoolers with Naming in English

The onset of the verbal behavior developmental cusp of bidirectional naming (BiN) in a second language makes it possible for monolingual English-speaking children to learn names of things in a second language incidentally. We conducted 2 experiments to identify why monolingual English-speaking children cannot demonstrate BiN in another language when they demonstrated BiN in their native language. In Experiment I, using a group design (n = 32 preschoolers), we identified Chinese speech sounds that monolingual English-speaking children with BiN in English for familiar stimuli could not echo. In Experiment II, using a multiple-probe design, we investigated if mastery of echoics with the speech sounds identified in Experiment I would result in BiN in Chinese with 6 participants from Experiment I. The dependent variable was untaught responses to the probe stimuli presented following the naming experience based on the echoic stimuli from Experiment I. The results showed that echoic training was functionally related to the establishment of BiN in the second language. It appeared that the emission of accurate echoics might be the key to second-language BiN and that emergent correspondence between producing and hearing that occurs with the mastery of the echoic responding may be the source of reinforcement.

Independência Funcional entre Comportamentos de Falante e Ouvinte Relativos a Paisagens Desconhecidas

Resumo Este estudo investigou o efeito de treinos sucessivos na emissão não treinada de comportamentos de ouvinte e falante após o treino do outro operante. Doze adultos universitários típicos foram divididos em dois grupos com base na ordem de exposição aos treinos e testes em três fases experimentais. Os participantes do Grupo Ouvinte-Falante passaram por treinos de ouvinte e testes de falante, e os demais foram submetidos a treinos e testes na ordem inversa. Os cinco estímulos utilizados por fase foram palavras inventadas e paisagens desconhecidas por eles. Os participantes do Grupo Falante-Ouvinte atingiram o critério de dependência funcional nas três fases experimentais. No outro grupo, apenas um integrante apresentou dependência funcional na primeira fase experimental, sendo observada melhora gradual no desempenho nos testes ao longo do experimento para os demais. Discutiu-se a eficácia dos treinos sucessivos na ocorrência de dependência funcional condicionalmente a aspectos do procedimento.

Instructional Demonstrations are More Efficient Than Consequences Alone for Children with Naming

Prior research found that without the naming cusp, children did not learn from instructional demonstrations presented before learn units (IDLUs) (i.e., modeling an expected response twice for a learner prior to delivering an instructional antecedent), however, following the establishment of naming, they could. The present study was designed to compare the rate of learning reading and mathematics objectives in children who showed naming using IDLUs compared to standard learn units (SLUs) alone (comparable to three-term contingency trials). In Phase 1, a pre-screening phase, we demonstrated that four typically developing males, 3 to 4 years of age, had naming within their repertoire, meaning they were able to master the names of novel 2-D stimuli as both a listener and a speaker without explicit instruction. Using the same participants in Phase 2, we compared rates of learning under two instructional methods using a series of repeated AB designs where conditions (IDLUs versus SLUs) were counterbalanced across dyads and replicated across participants. The participants learned more than twice as fast under IDLU conditions and showed between 30% and 50% accuracy on the first presentation of a stimulus following a model. The IDLU condition was more efficient (fewer trials to criterion) than the SLU condition. These findings, together with prior findings, suggest that the onset of naming allows children to learn faster when instructional demonstrations are incorporated into lessons.

Further Evaluation of the Stimulus Pairing Observation Procedure with Children with Autism Spectrum Disorder

A large amount of learning occurs through the observation of stimulus-stimulus relations. One procedure that involves this sort of learning is the stimulus-pairing observation procedure (SPOP). The current study involves a systematic replication of Byrne, Rehfeldt, and Aguirre (2014). Tests for the emergence of tact and listener relations were conducted pre- and post-SPOP intervention, which consisted of a therapist presenting auditory-visual stimulus relations to participants. The SPOP intervention resulted in the establishment of tact and listener relations for all participants. The importance of assessing prerequisite skills is considered in the context of previous research.

Teaching Children with Autism Extended Verbal Utterances Under Audience Control in the Context of Show-and-Tell

The present study evaluated the efficacy of a discrete-trial-training procedure to bring extended verbal behavior under the convergent control of audience and contextual variables during a show-and-tell activity. Three children with autism were exposed initially to a baseline condition in which they were presented with a preferred item and asked to tell the class about it. Following low rates of responding, a differential reinforcement procedure was implemented that reinforced extending the verbal utterance word length beyond baseline levels allowing for an appropriate display of "show-and-tell" behavior. The results show that the procedures were efficacious in application with three children with autism, providing a method that can be conducted in classroom settings to teach a complex form of verbal operant behavior.

The Future of Verbal Behavior: Together Is Better

Prior editorials have addressed the question "Where do we go from here?" This is a reasonable query as an incoming editorial team considers new perspectives and initiatives that may further benefit the journal. I will address two important highlights of the revised mission statement of The Analysis of Verbal Behavior aimed at actively encouraging diversity of thought in publications and focusing on narrowing the gap between applied research and practice.

Deconstructing Common Bidirectional Naming: A Proposed Classification Framework

Conceptually, the use of the technical term naming appears to be a broad term that describes several subtypes of emergent verbal behavior. Miguel (The Analysis of Verbal Behavior, 32, 125-138, Miguel, 2016) introduces the concept of subtypes of naming, specifically common bidirectional naming and intraverbal bidirectional naming. He defines common bidirectional naming as "the process of different stimuli evoking the same speaker and listener behaviour and becoming members of the same class" (p. 130). A review of the literature on common bidirectional naming yielded some ambiguities related to differences in how researchers in the field defined naming. This article suggests that common bidirectional naming may be further dissected to yield six subtypes of naming. We aligned previous research on emergent verbal behavior with a unified taxonomy as part of a larger proposed classification framework on naming. The impact of identifying the subtypes of common bidirectional naming on skill acquisition and curriculum design is discussed. Finally, recommendations are made for future research based on this framework.

Further evidence of automatic reinforcement effects on verbal form

The form of a verbal response allows for reinforcement mediation and language transmission across cultures. Reinforcement, in turn, plays a decisive role in learning verbal forms. The present work addresses methodological limitations of previous studies, providing further evidence of the role of automatic reinforcement in achieving parity with vocal models. In the first experiment, 4 preschool-age children heard the experimenter describe drawings of different actions in the passive voice. Participants were then asked to describe analogous drawings. They used the passive voice after the model was presented and continued to do so even when preferred explicit consequences followed diverging descriptions (i.e., in the active voice). To further investigate the effects of explicit reinforcement and of the passive-voice model, in Experiment 2, we altered the number of trials with explicit reinforcement and with the model. Three of four participants used the passive voice to describe the drawings, despite greater exposure to explicit consequences following descriptions diverging from the model.

Narrative: Why It's Important, and How It Works

Behavior analysts have said little about narrative and storytelling, emphasizing instead the functional/pragmatic aspects of verbal behavior. Nevertheless, these are ubiquitous human activities, and they are important to understand. Stories are prominent in essays on social issues, fund-raising appeals and political speeches, and they are the bedrock of theater. Foundational narratives are at the roots of major religions and of conflicts between them, and narrative has been proposed as an organizing basis for psychological wellbeing as well as a source of empathetic reactions. The ongoing process of reading or hearing a good story entails interlocking relations between establishing stimuli and their related, differentiated reinforcing consequences, with a story's coherence providing a key to its reinforcing effects. What are the behavioral principles that underlie the repertoires involved in all this? Behavior analysts have defined and studied some-the basic verbal classes, of course, although temporally extended sequences require some adjustments in these. Intraverbal behavior needs to be parsed into sub-categories to delineate highly varied sequences such as occur in paraphrase and translation. These two, along with imitation, generalized imitation and re-telling of stories, entail a salient role of complex invariance. The terms pliance and tracking help to balance the roles of speaker and listener, and to account for joint attention, which appears important in early verbal development. Transfer and transformation of function are additional ubiquitous processes, addressed through stimulus equivalence, relational frames, and other higher-order operants, especially naming, which entails the fusion of speaking and listening. Finally, we should consider ways in which a behavioral understanding of narrative can serve both behavior analysis and its surrounding culture.

A Bibliographic Tribute to Jack Michael

"In the late 1950's, Jack Michael, a bright but irritating young psychology instructor, moved from the Universities of Kansas to Houston to Arizona State. Along the way he befriended two nontraditional students, protected them through their Ph.D. programs, and turned them loose on the world: Teodoro Ayllon…and Montrose Wolf…" (Risley, 2001, p. 267). So begins Risley's chapter on the origins of applied behavior analysis. For almost 50 years, Jack Michael provided a model for us to "talk like Skinner" and to analyze behavior as Skinner would. For this, he has been widely respected and revered. The purpose of this bibliography is to explain to new and familiar readers alike Jack's contributions to the field of behavior analysis in areas of his primary focus: (a) behavioral function taxonomy, (b) motivation, (c) reinforcement, (d) response topographies, (e) multiple control, (f) duplic and codic verbal behavior, and (g) teaching. Throughout, we weave his role in the field's history and his leadership in its expansion, as these have been additional areas of significant contributions. Above all, we wish to highlight Jack's work, in bibliographic and narrative form, in a way that expresses a heartfelt tribute on behalf of his students and others whom he influenced to learn about psychology as a natural science and to think and talk like Skinner.

Ensino de Nomeação com Objetos e Figuras para Crianças com Autismo

Resumo Este estudo comparou a utilização de estímulos bidimensionais e tridimensionais em um procedimento de instrução com múltiplos exemplares para instalar nomeação (integração dos repertórios de falante e ouvinte) em quatro crianças com autismo. Após uma linha de base de nomeação (Fase 1), treinou-se discriminação condicional por identidade com o experimentador tateando os estímulos modelo, discriminação condicional auditivo-visual e tato com novos estímulos (Fase 2). Atingido o critério na Fase 2, a Fase 1 foi replicada (Fase 3). Observada nomeação na Fase 3, a Fase 1 foi replicada com novos estímulos (Fase 4). Dois participantes demonstraram nomeação. Discute-se a efetividade do procedimento de instrução com múltiplos exemplares, o papel da modalidade de estímulos e a interação entre os repertórios de falante e ouvinte.

Is the Source of Reinforcement for Naming Multiple Conditioned Reinforcers for Observing Responses?

Naming refers to the incidental acquisition of word-object relations as listener and speaker without explicit reinforcement. To investigate possible sources of reinforcement for naming, we examined the effects of a procedure for conditioning reinforcement for observing responses on the emergence of naming in children who previously lacked it. The participants were three 5- to 7-year-old children with and without diagnoses of autism spectrum disorder. During the intervention, either visual or auditory stimuli were first conditioned as reinforcers for observing responses. Then, neutral visual or auditory stimuli were paired with the conditioned visual or auditory stimuli until both visual and auditory stimuli acquired reinforcing properties for observing. Following this intervention, the participants demonstrated naming of stimuli that had been used in pretests for naming, as well as on a novel set of stimuli. We observed increases in echoic responding in conjunction with the emergence of naming and conditioned reinforcement for both observing responses. We interpret the data as suggesting that listener and speaker repertoires are joined for naming only when both visual and auditory stimuli reinforce the observing responses of looking and listening simultaneously.

Induction of naming after observing visual stimuli and their names in children with autism

A novel procedure to induce pairing naming, considered the emergence of tacts and selection of pictures after observing names and its corresponding pictures without specific consequences, was probed in 4 persons with autism who lacked this capability with a multiple probe design across participants. Five pictures were selected per set. The participants observed the pictures on a computer screen while the experimenter said the name of the picture. Then, the emission of untaught uninstructed tacts of the pictures was tested without reinforcement. The cycle was repeated until a criterion of 90% correct responses was achieved. Thereafter, in probes without reinforcement, the participants tacted the pictures without specific instructions and also when asked to name them, and selected the correct picture upon hearing their names. The procedure was repeated with two additional stimulus sets and the probed relations emerged always. Two children showed the emergence with fewer trials across sets, which indicate emergence induction. Thus, the procedure served to test whether the pairing naming capability was missing and induced the capability. The results may have important utility in teaching persons diagnosed with autism and other learning difficulties and for accelerating learning in all children.

Cultural and Linguistic Diversity in Recent Verbal Behavior Research on Individuals with Disabilities: a Review and Implications for Research and Practice

The number of individuals from various culture and language backgrounds who are receiving behavior-analytic services is growing. Therefore, a behavioral understanding of the role of cultural and linguistic diversity (CLD) in language acquisition may be warranted. We searched recent editions of The Analysis of Verbal Behavior and the Journal of Applied Behavior Analysis to determine the degree to which researchers report the CLD of individuals with disabilities who participate in verbal behavior research. Our results indicate that researchers in these journals rarely report the culture and language background of their participants. Given these results, we provide a conceptual analysis and describe implications for research and clinical practice. A further understanding of the role of CLD may aid in the development of better behavioral interventions and culturally sensitive treatments. Finally, research that explores the role of CLD in language acquisition may add to the generality of behavior-analytic research and practice.

Observing Tacting Increases Uninstructed Tacts in Children with Autism

The effects of observing an adult emitting tacts on children's rate of uninstructed (i.e., "spontaneous") tacts were examined in three children diagnosed with autism. Each participant was exposed to two conditions in four settings each: in condition 1, participants received 20 trials of teacher-initiated interactions in which the child was asked to tact 20 objects during 5 min. Condition 2 was identical to condition 1 except that the teacher also tacted 20 objects interspersed with the 20 tact trials. The number of uninstructed tacts was recorded in both conditions. Children emitted between 1.58 and 2.68 times more uninstructed tacts in condition 2 than in condition 1. These results indicate that teachers' emission of tacts increases the emission of uninstructed tacts in children with autism.

The Importance of Form in Skinner's Analysis of Verbal Behavior and a Further Step

A series of quotes from B. F. Skinner illustrates the importance of form in his analysis of verbal behavior. In that analysis, form plays an important part in contingency control. Form and function complement each other. Function, the array of variables that control a verbal utterance, dictates the meaning of a specified form; form, as stipulated by a verbal community, indicates that meaning. The mediational actions that shape verbal utterances do not necessarily encounter their controlling variables. These are inferred from the form of the verbal utterance. Form carries the burden of implied meaning and underscores the importance of the verbal community in the expression of all the forms of language. Skinner's analysis of verbal behavior and the importance of form within that analysis provides the foundation by which to investigate language. But a further step needs to be undertaken to examine and to explain the abstractions of language as an outcome of action at an aggregate level.

Constructs and events in verbal behavior

Skinner's (1957) analysis of verbal behavior has been the subject of much controversy in recent years. While criticism has historically come from outside the field of behavior analysis, there are now well-articulated arguments against Skinner's analysis of verbal behavior from within the field as well. Recently, advocates of Skinner's analysis have attempted to respond to the critiques, particularly to those regarding Skinner's definition of verbal behavior articulated by proponents of relational frame theory. Specifically, it has been suggested that talk about definitions equates to making the essentialist error. This paper provides an overview of these issues in the context of understanding the role of constructs in science more generally. It will be argued that definitions are central to scientific progress, and are not only relevant to a functional analysis, but a central prerequisite to the pursuit of such an analysis.

Effects of conditioning voices as reinforcers for listener responses on rate of learning, awareness, and preferences for listening to stories in preschoolers with autism

We used a delayed non-concurrent pre- and post-intervention probe design to test the effects of a voice conditioning protocol (VCP) with 3 preschoolers with autism on (a) rate of acquisition of listener curricular objectives, (b) observing voices and the presence of adults across 3 settings, (c) selecting to listen to adults tell stories in free play setting, and (d) the occurrence of stereotypy in the story setting. The VCP conditioned voices as reinforcers for listening to recordings of voices via stimulus-stimulus pairing, which resulted in the children listening to audio recordings of voices in 90% of intervals in 5-min concurrent-operant preference tests. After voices became conditioned reinforcers, all 3 children's learning accelerated; 2 children's observing responses increased in the 3 settings; and 2 children selected to listen to stories and also showed decreased stereotypy in the story setting. The data suggest that conditioned reinforcement for observing responses may be a verbal behavior developmental cusp that acts to accelerate learning that involves listening, and that the cusp may be induced using the VCP.

Establishing naming in typically developing two-year-old children as a function of multiple exemplar speaker and listener experiences

Naming is a verbal developmental capability and cusp that allows children to acquire listener and speaker functions without direct instruction (e.g., incidental learning of words for objects). We screened 19 typically developing 2- and 3-year-old children for the presence of Naming for 3-dimensional objects. All 9 3-year-olds had Naming, and 8 of 10 2-year-olds lacked Naming. For the 2-year-old children who lacked Naming, we used multiple-probe designs (2 groups of 4 children) to test the effect of multiple exemplar instruction (MEI) across speaker and listener responses on the emergence of Naming. Prior to the MEI, the children could not emit untaught listener or speaker responses following match-to-sample instruction with novel stimuli, during which they had heard the experimenter tact the stimuli. After MEI with a different set of novel stimuli, the children emitted listener and speaker responses when probed with the original stimuli, in the absence of any further instruction with those stimuli. Seven of 8 children acquired the speaker and listener responses of Naming at 83% to 100% accuracy. We discuss the basic and applied science implications.

Understanding observational learning: an interbehavioral approach

Observational learning is an important area in the field of psychology and behavior science more generally. Given this, it is essential that behavior analysts articulate a sound theory of how behavior change occurs through observation. This paper begins with an overview of seminal research in the area of observational learning, followed by a consideration of common behavior analytic conceptualizations of these findings. The interbehavioral perspective is then outlined, shedding light on some difficulties with the existing behavior analytic approaches. The implications of embracing the interbehavioral perspective for understanding the most complex sorts of behavior, including those involved in observational learning are considered.

A review of recommendations for sequencing receptive and expressive language instruction

We review recommendations for sequencing instruction in receptive and expressive language objectives in early and intensive behavioral intervention (EIBI) programs. Several books recommend completing receptive protocols before introducing corresponding expressive protocols. However, this recommendation has little empirical support, and some evidence exists that the reverse sequence may be more efficient. Alternative recommendations include teaching receptive and expressive skills simultaneously (M. L. Sundberg & Partington, 1998) and building learning histories that lead to acquisition of receptive and expressive skills without direct instruction (Greer & Ross, 2008). Empirical support for these recommendations also is limited. Future research should assess the relative efficiency of receptive-before-expressive, expressive-before-receptive, and simultaneous training with children who have diagnoses of autism spectrum disorders. In addition, further evaluation is needed of the potential benefits of multiple-exemplar training and other variables that may influence the efficiency of receptive and expressive instruction.

Recombinative reading derived from pseudoword instruction in a miniature linguistic system

A miniature linguistic system was used to study acquisition of recombinative symbolic behavior. Three studies evaluated the teaching conditions of conditional discriminations with printed and spoken pseudowords that could potentially generate recombinative reading. Fifty-four college students across all studies learned to match 12 printed pseudowords to 12 spoken pseudowords. Some also matched pictures to the same spoken words. Each two-syllable pseudoword was formed by symbols from an arbitrarily created alphabet composed of four vowels and four consonants. Letters had univocal correspondence with phonemes. Recombinative receptive reading, comprehensive reading, and textual responding to pseudowords were periodically assessed. Experiment 1 (n  =  20) showed that recombinative reading increased as the number of trained words composed of the same symbols increased. Experiment 2 (n  =  14) showed that overtraining the same two words did not produce recombinative reading for most participants. Experiment 3 (n  =  20), in which training with pictures was omitted, showed that elemental control by within-syllable units can develop even when the trained pseudowords are meaningless (not related to pictures). The present results support the utility of the miniature linguistic system methodology for identifying and controlling environmental determinants of rudimentary reading skills.

A rose by naming: how we may learn how to do it

Naming appears to be the source of the explosion in language development and involves the integration of the initially separate listener and speaker responses. This integration has a role in the development of reading, writing, and the following and construction of verbal algorithms that make types of complex human behavior possible. Considerable research has investigated the role of Naming in the emergence of derived relations. Recent research has also investigated the emergence of Naming itself. We describe these experiments and the experiences that function to induce Naming. We also describe evidence about preverbal developmental cusps that are foundational to the emergence of Naming and the evidence on its reinforcement sources. The isolation of the role of the environment in the emergence of Naming identifies stimuli that were said to be missing in accounts that were critical of Skinner's (1957) account of verbal behavior. These arguments purported that the phenomenon was not attributable to learning because of the "poverty of the stimulus." Some of the relevant stimuli now appear to be identified.