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Paula Debert Edson M. Huziwara Robson Brino Faggiani Maria Eugênia Simões De Mathis William J. McIlvane 《Journal of the experimental analysis of behavior》2009,92(2):233-243
Past research has demonstrated emergent conditional relations using a go/no‐go procedure with pairs of figures displayed side‐by‐side on a computer screen. The present study sought to extend applications of this procedure. In Experiment 1, we evaluated whether emergent conditional relations could be demonstrated when two‐component stimuli were displayed in figure—ground relationships—abstract figures displayed on backgrounds of different colors. Five normally capable adults participated. During training, each two‐component stimulus was presented successively. Responses emitted in the presence of some stimulus pairs (A1B1, A2B2, A3B3, B1C1, B2C2 and B3C3) were reinforced, whereas responses emitted in the presence of other pairs (A1B2, A1B3, A2B1, A2B3, A3B1, A3B2, B1C2, B1C3, B2C1, B2C3, B3C1 and B3C2) were not. During tests, new configurations (AC and CA) were presented, thus emulating structurally the matching‐to‐sample tests employed in typical equivalence studies. All participants showed emergent relations consistent with stimulus equivalence during testing. In Experiment 2, we systematically replicated the procedures with stimulus compounds consisting of four figures (A1, A2, C1 and C2) and two locations (left — B1 and right — B2). All 6 normally capable adults exhibited emergent stimulus—stimulus relations. Together, these experiments show that the go/no‐go procedure is a potentially useful alternative for studying emergent conditional relations when matching‐to‐sample is procedurally cumbersome or impossible to use. 相似文献
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RESUMENA partir de la distinción entre aprendizaje y amaestramiento, los autores se suman a las críticas de H. S. Terrace y su equipo respecto a la posibilidad de enseñar lenguaje a los animales. Señalan que parece surgir una dependencia de la guía humana en los entrenamientos con antropoides, los cuales realizan producciones correctas tras descubrir indicios no intencionados en el experimentador. Esta afirmación se justifica analizando los estudios con las chimpancés Sara y Washoe, centrándose en las posibilidades de comunicación “extralingüística” de los experimentos de doble ciego realizados con esta última. Seguidamente los autores critican las investigaciones de E. Sue Savage-Rumbaugh y colegas desde las mismas premisas y finalizan con algunas reflexiones en torno a la imposibilidad de realizar experimentos sin la presencia humana, subrayando que la acomodación de chimpancés, gorilas, investigadores y experimentadores a la situación experimental hace que los avances reales en la comunicación hombre-antropoide sean todavía materia de ficción. 相似文献
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Norma J. Perez‐Brena Kimberly A. Updegraff Adriana J. Umaña‐Taylor Laudan Jahromi Amy Guimond 《Family process》2015,54(2):263-279
The current study explored the multifaceted nature of the mother–adolescent coparental relationship with data from 167 Mexican‐origin adolescent mothers and their own mothers at 10 months post childbirth. Profiles of mother–adolescent coparenting were created with latent profile analysis using adolescents’ reports of three dimensions of coparenting (communication, involvement, and conflict). Four profiles were identified: (a) Harmonious Coparents (equal involvement, high communication, low conflict); (b) Harmonious‐Adolescent Primary (adolescent is more involved than mother, high communication, low conflict); (c) Conflictual Coparents (equal involvement, high communication, high conflict); and (d) Conflictual‐Adolescent Primary (adolescent is more involved than mother, moderate communication, high conflict). Families characterized by high mother–daughter conflict and psychological control prior to childbirth were more likely to belong in the Conflictual Coparents profile. In addition, adolescents’ and mothers’ depressive symptoms and parenting efficacy after childbirth were linked to profile membership, such that the Harmonious‐Adolescent Primary profile reported the most positive adjustment patterns, whereas profiles with high coparental conflict (i.e., Conflictual Coparenting and Conflictual‐Adolescent Primary profiles) showed the least positive adjustment patterns. Discussion considers the applied implications of identifying precursors to healthy and problematic mother–daughter coparenting for families of adolescent mothers in the early years of parenting. 相似文献
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Campos HC Debert P da Silva Barros R McIlvane WJ 《Journal of the experimental analysis of behavior》2011,96(3):417-426
A go/no‐go procedure with compound stimuli typically establishes emergent behavior that parallels in structure and typical outcome that of conventional tests for symmetric, transitive, and equivalence relations in normally capable adults. The present study employed a go/no‐go compound stimulus procedure with pigeons. During training, pecks to two‐component compounds A1B1, A2B2, B1C1, and B2C2 were followed by food. Pecks to compounds A1B2, A2B1, B1C2, and B2C1 re‐started the 30‐s stimulus presentation interval. The absence of pecking to those compounds for 30 s ended the trial. Subsequent tests presented these components in new spatial arrangements and/or in recombinative compounds that together corresponded to conventional tests of symmetry, transitivity, and equivalence: B1A1, B2A2, C1B1, C2B2, A1C1, A2C2, C1A1, C2A2 vs. B1A2, B2A1, C1B2, C2B1, A1C2, A2C1, C1A2, C2A1 (positive vs. negative instances of symmetric, transitive, and equivalence relations). On tests for symmetric relations, all pigeons behaved in a manner consistent with training on both positive instances (i.e., by responding) and on negative instances (i.e., by not responding). By contrast, the pigeons' behavior on tests for transitivity and equivalence was inconsistent with baseline training, thus failing to show the recombinative discrimination performance that is typical of normally capable humans when trained and tested using the go/no‐go procedure with compound stimuli. 相似文献
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Stüttgen MC Yildiz A Güntürkün O 《Journal of the experimental analysis of behavior》2011,96(2):155-176
Pigeons responded in a perceptual categorization task with six different stimuli (shades of gray), three of which were to be classified as \"light\" or \"dark\", respectively. Reinforcement probability for correct responses was varied from 0.2 to 0.6 across blocks of sessions and was unequal for correct light and dark responses. Introduction of a new reinforcement contingency resulted in a biphasic process of adjustment: First, choices were strongly biased towards the favored alternative, which was followed by a shift of preference back towards unbiased choice allocation. The data are well described by a signal detection model in which adjustment to a change in reinforcement contingency is modeled as the change of a criterion along a decision axis with fixed stimulus distributions. Moreover, the model shows that pigeons, after an initial overadjustment, distribute their responses almost optimally, although the overall benefit from doing so is extremely small. The strong and swift effect of minute changes in overall reinforcement probability precludes a choice strategy directly maximizing expected value, contrary to the assumption of signal detection theory. Instead, the rapid adjustments observed can be explained by a model in which reinforcement probabilities for each action, contingent on perceived stimulus intensity, determine choice allocation. 相似文献
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We evaluated the effects of three different methods of denying access to requested high-preference activities on escalating problem behavior. Functional analysis and response class hierarchy (RCH) assessment results indicated that 4 topographies of problem behaviors displayed by a 13-year-old boy with high-functioning autism constituted an RCH maintained by positive (tangible) reinforcement. Identification of the RCH comprised the baseline phase, during which computer access was denied by saying \"no\" and providing an explanation for the restriction. Two alternative methods of saying \"no\" were then evaluated. These methods included (a) denying computer access while providing an opportunity to engage in an alternative preferred activity and (b) denying immediate computer access by arranging a contingency between completion of a low-preference task and subsequent computer access. Results indicated that a hierarchy of problem behavior may be identified in the context of denying access to a preferred activity and that it may be possible to prevent occurrences of escalating problem behavior by either presenting alternative options or arranging contingencies when saying \"no\" to a child's requests. 相似文献
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Reproductive justice advocates emphasize the rights of women to choose to have children, to decide the conditions under which they give birth, and to parent their children with support, safety, and dignity. This article examines what a reproductive justice perspective contributes to infant mental health work with teenage mothers and their families. It explores the historical framing of teenage pregnancy in which young mothers are the cause of a variety of social problems and in which the primary policy and practice approach is pregnancy prevention. The article offers alternative framings of teenage childbearing, based on reproductive justice principles, which focus on social conditions surrounding teenage parenthood and the meaning of motherhood in the lives of young women. These alternative frames shift the practice agenda to eradicating unjust social conditions and providing supports for young women in their roles as parents. The article then describes ways in which two infant mental health programs have incorporated reproductive justice principles into their work with young families: Chicago's community doula model and Florida's Young Parents Project for court-involved teenage parents. Finally, the article extracts a set of principles deriving from a reproductive justice perspective that are relevant to infant mental health work with young families. 相似文献
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Renata Tambelli Cristina Trentini Annamaria Trovato Barbara Volpi 《Infant mental health journal》2019,40(4):541-556
The aim of the present study was to investigate the role of several psychosocial risk factors in predicting depressive symptomatology during pregnancy in mothers and fathers, respectively. A total of 146 primiparous mothers and 105 primiparous fathers reporting a psychosocial risk condition were recruited independently from maternity and child health services, during the second trimester of pregnancy. All parents were evaluated for depressive symptomatology, anxiety, and perceived social support. Two hierarchical multiple regression analyses were performed to determine the role of psychosocial factors in predicting depressive symptomatology during pregnancy, in mothers and fathers. Marital dissatisfaction, personal history of depression, and personal trait anxiety were identified as significant predictors of depressive symptomatology during pregnancy, both in mothers and in fathers. Family history of substance abuse, conflictual relationship with the parents in the past year, and bereavement in the past year were identified as significant factors contributing to elevated depressive symptoms during pregnancy in mothers, but not fathers. In this study, several psychosocial risk factors were consistently related to an increase in maternal and paternal depressive symptoms during pregnancy; some of these factors seem to be specifically related to maternal depressive mood. 相似文献