Operant Performance
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Animal models of anxiety disorders and stress
Anxiety and stress-related disorders are severe psychiatric conditions that affect performance in daily tasks and represent a high cost to public health. The initial observation of Charles Darwin that animals and human beings share similar characteristics in the expression of emotion raise the possibility of studying the mechanisms of psychiatric disorders i
Rev. Bras. Psiquiatr.. Publicado em: 2013
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2. Desamparo aprendido e imunização em humanos: avaliação metodológica/conceitual e uma proposta experimental / Learned helplessness and immunization in humans: methodological/conceptual evaluation and an experimental proposal
The results of learned helplessness studies with humans have been inconsistent. This is probably due to the systematic contiguity between the end of the aversive stimulus and the immediately preceding response during the uncontrollability session, which mimics an accidental control condition. Three experiments were conducted to establish a procedure with ade
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/09/2012
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3. Variabilidade comportamental e aumento da probabilidade de seqüências de respostas com baixa ocorrência inicial em um procedimento de operante livre / Behavioral variability and increase of the responses sequences probability with low initial occurrence in a procedure of free operating
The objective of this study was to analyze if the direct reinforcement of variable responding in a free-operant procedure can facilitate learning of a response sequence with low baseline frequency in human repertoires. It also aimed to verify if the distance between lateral keyboards may influence the variable performance. Eighteen participants were divided
Publicado em: 2010
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4. Experimental analogous of social phenomena: the effects of the cultural consequences / Análogos experimentais de evolução cultural: o efeito das conseqüências culturais
To many behavior analysts, the concern about social phenomena has been subject of research and discussion. Some of these researchers have been devoted to intervention in the contents generated by these phenomena, while the other part dedicates to formulation of principles which describes the behavioral processes in a cultural level. This work fits in the sec
Publicado em: 2009
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5. Comportamento verbalmente controlado: uma análise do efeito de operantes verbais autoclíticos sobre o comportamento de escolha / Verbally governed behavior: an analysis of the effects of autoclitic verbal operants upon choice behavior
The present study aimed to investigate the effect of verbal descriptions with or without autoclitic operants, upon the performance of adult participants in a choice task. To achieve it, a concurrent schedule design was planned, in which it was observed the preference pattern of each participant between the alternative of smaller and immediate reinforcement o
Publicado em: 2009
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6. Possible relations between Chronic Mild Stress (CMS) and operant performance / Possíveis inter-relações entre a submissão ao Chronic Mild Stree(CMS) e o desempenho operante
Chronic Mild Stress (CMS) é um modelo animal de depressão no qual ratos são submetidos a um protocolo de estressores moderados de forma crônica. Em função disso, o consumo e preferência por água com sacarose diminuem. Tal redução costuma ser considerada uma medida de anedonia, sintoma central da depressão em humanos. Três estudos realizados no La
Publicado em: 2009
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7. Effects of deprivation history on operant performance, on weight and on water and food consumption / Efeitos da história de privação no desempenho operante, no peso e no consumo de água e alimento
This thesiss intent was to verify the effects of deprivation history on operant performance, on weight and on water and food consumption in rats. Another purpose was evaluate the effects of the experimental sessions on weight and on water and food consumption, with subjects under different deprivation history. Twelve rats were divided in 4 groups of three ra
Publicado em: 2008
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8. O que se faz e o que se diz: auto-relatos emitidos por terapeutas comportamentais / Whats doing and sayng: self-reports emitted by behavior therapists
The objective of the study is to verify the relations of the self-reports emitted by behavior therapists about their own behavior in the interaction with their clients and the respective behaviors that in fact had occurred. Three behavior therapists with different time of experience were selected to the research (Six months Ta, five years Tb and eight years
Publicado em: 2008
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9. Efeitos de música ambiente sobre o comportamento consumidor : análise comportamental do cenário de consumo
Consumer Atmospherics is a research area that investigates the effects of specific environment characteristics in the behavior of consumers. In spite of the growth in published papers reporting its effects, there are very few research presenting a theoretical framework for the comprehension or proposing methods for its generalization to settings other than t
Publicado em: 2008
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10. Operação estabelecedora condicionada substituta: uma demonstração experimental / Surrogate conditioned establishing operation: an experimental demonstration
Establishing operations (EO`s) are environmental events defined by two of their effects: establishing the effect of a consequence as a reinforcement or a punisher and altering the frequency of any response that, in the past, was related to it. The EO`s are divided in unconditioned and conditioned, being the last ones classified in three different types: surr
Publicado em: 2008
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11. Avaliação de limiar e máximo conforto auditivo por meio de procedimentos operantes com crianças surdas prélinguais submetidas a implante coclear
The cochlear implant is a prosthetic electric device that is implanted through surgery. I has the propose of substituting the cochlear functions allowing thus, the individuals with pre and post-linguistic neurosensorial deafness to begin to detect environmental sounds. One of the necessary procedures to help someone to develop hearing skills after the implan
Publicado em: 2005
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12. Operant conditioning of head waving in Aplysia.
Head waving is a naturally occurring behavior that Aplysia use to explore their environment. Aplysia can be operantly trained to modify their head-waving response, increasing the amount of head waving on one side of their body in order to terminate the presentation of an aversive strong light. Acquisition of the operant response is rapid, within 10 min. Two