This study demonstrated reinforcement control over pronounced feminine behaviors in a male child who had been psychologically evaluated as manifesting "childhood cross-gender identity". The clinical history of the subject paralleled the retrospective reports of adult transsexuals, including (a) cross-gender clothing preferences, (b) actual or imaginal use of cosmetic articles, (c) feminine behavior mannerisms, (d) aversion to masculine activities, coupled with preference for girl playmates and feminine activities, (e) preference for female role, (f) feminine voice inflection and predominantly feminine content in speech, and (g) verbal statements about the desire or preference to be a girl. The subject was treated sequentially in the clinic and home environments by his mother, trained to be his therapist. The mother was taught to reinforce masculine behaviors and to extinguish feminine behaviors, by using social reinforcement in the clinic and a token reinforcement procedure in the home. During this treatment, his feminine behaviors sharply decreased and masculine behavior increased. The treatment effects were found to be largely response-specific and stimulus-specific; consequently, it was necessary to strengthen more than one masculine behavior and weaken several feminine behaviors, in both clinic and home settings. A multiple-baseline intrasubject design was used to ensure both replication and identification of relevant treatment variables. Follow-up data three years after the treatment began suggests that the boy's sex-typed behaviors have become normalized. This study suggests a preliminary step toward correcting pathological sex-role development in boys, which may provide a basis for the primary prevention of adult transsexualism or similar adult sex-role deviation.

During real-time language comprehension, our minds rapidly decode complex meanings from sequences of words. The difficulty of doing so is known to be related to words' contextual predictability, but what cognitive processes do these predictability effects reflect? In one view, predictability effects reflect facilitation due to anticipatory processing of words that are predictable from context. This view predicts a linear effect of predictability on processing demand. In another view, predictability effects reflect the costs of probabilistic inference over sentence interpretations. This view predicts either a logarithmic or a superlogarithmic effect of predictability on processing demand, depending on whether it assumes pressures toward a uniform distribution of information over time. The empirical record is currently mixed. Here, we revisit this question at scale: We analyze six reading datasets, estimate next-word probabilities with diverse statistical language models, and model reading times using recent advances in nonlinear regression. Results support a logarithmic effect of word predictability on processing difficulty, which favors probabilistic inference as a key component of human language processing.

Historically, prediction during reading has been considered an inefficient and cognitively expensive processing mechanism given the inherently generative nature of language, which allows upcoming text to unfold in an infinite number of possible ways. This article provides an accessible and comprehensive review of the psycholinguistic research that, over the past 40 or so years, has investigated whether readers are capable of generating predictions during reading, typically via experiments on the effects of predictability (i.e., how well a word can be predicted from its prior context). Five theoretically important issues are addressed: What is the best measure of predictability? What is the functional relationship between predictability and processing difficulty? What stage(s) of processing does predictability affect? Are predictability effects ubiquitous? What processes do predictability effects actually reflect? Insights from computational models of reading about how predictability manifests itself to facilitate the reading of text are also discussed. This review concludes by arguing that effects of predictability can, to a certain extent, be taken as demonstrating evidence that prediction is an important but flexible component of real-time language comprehension, in line with broader predictive accounts of cognitive functioning. However, converging evidence, especially from concurrent eye-tracking and brain-imaging methods, is necessary to refine theories of prediction.

with cognitive psychology, which, unlike behaviorism, views internal mental states as explanations for observable behavior. Behaviorism emerged in the Behaviorism is a systematic approach to understanding the behavior of humans and other animals. It assumes that behavior is either a reflex elicited by the pairing of certain antecedent stimuli in the environment, or a consequence of that individual's history, including especially reinforcement and punishment contingencies, together with the individual's current motivational state and controlling Behaviorism is a systematic approach to understanding the behavior of humans and other animals. It assumes that behavior is either a reflex elicited by the pairing of certain antecedent stimuli in the environment, or a consequence of that individual's history, including especially reinforcement and punishment contingencies, together with the individual's current motivational state and controlling stimuli. Although behaviorists generally accept the important role of heredity in determining behavior, deriving from Skinner's two levels of selection (phylogeny and ontogeny), they focus primarily on environmental events. The cognitive revolution of the late 20th century largely replaced behaviorism as an explanatory theory with cognitive psychology, which, unlike behaviorism, views internal mental states as explanations for observable behavior. Behaviorism emerged in the early 1900s as a reaction to depth psychology and other traditional forms of psychology, which often had difficulty making predictions that could be tested experimentally. It was derived from earlier research in the late nineteenth century, such as when Edward Thorndike pioneered the law of effect, a procedure that involved the use of consequences to strengthen or weaken behavior. With a 1924 publication, John B. Watson devised methodological behaviorism, which rejected introspective methods and sought to understand behavior by only measuring observable behaviors and events. It was not until 1945 that B. F. Skinner proposed that covert behavior—including cognition and emotions—are subject to the same controlling variables as observable behavior, which became the basis for his philosophy called radical behaviorism. While Watson and Ivan Pavlov investigated how (conditioned) neutral stimuli elicit reflexes in respondent conditioning, Skinner assessed the reinforcement histories of the discriminative (antecedent) stimuli that emit behavior; the process became known as operant conditioning. The application of radical behaviorism—known as applied behavior analysis—is used in a variety of contexts, including applied animal behavior and organizational behavior management, to the treatment of developmental…

Code-switching from one language to the next is seen as a hallmark of bilingualism (Meuter & Allport, 1999). Sociolinguistic approaches to code-switching have stressed the social significance of the phenomenon: bilinguals often use code-switching for identification purposes, showing their belonging to a social group (cf. Auer, 1998). Psycholinguistic accounts, on the other hand, have mainly focused on the switching costs involved, in the sense that it takes the brain time to adjust from one language system to the next (cf. Grosjean, 1995). In recent years, the behavioral ecology of the bilingual has become prominent in theorizing about code-switching (cf. Green, 2011): bilinguals greatly differ in the extent to and contexts in which they code-switch and this in turn affects the processing costs they show. This new approach thus allows for a unification between previously distinct sociolinguistic and psycholinguistic perspectives on code-switching. In this paper, we explore the dynamic between code-switching contexts and switching costs, by presenting spontaneous code-switching data (collected as part of a semi-structured interview) from sequential Dutch-English bilinguals (L1 Dutch speakers now living in Australia). The quantity and quality of the code-switches found in this population are related to their self-reported language use patterns, linguistic measures (such as productive and receptive vocabulary tests) and cognitive control tasks, tapping mainly inhibition (such as

Notes on the biology of syntactic processing. Recent developments in psycholinguistics, neurology, and brain imaging technology may have made it possible to integrate linguistic, psychological, and neurological approaches to the study of syntactic processing. In an integrated approach, observations of the brain itself, or observations that are linked to it, enrich the database on which processing theory is built and by which it is constrained. Published in Journal of psycholinguistic research (1989)