Discriminative Training
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Equivalência de estímulos em crianças portadoras da síndrome de apert / Stimulus equivalence in children with Apert Syndrome
The present study investigated the symbolic behaviors of patients with Apert Syndrome through the paradigm of stimulus equivalence, since it may provide a basis for understanding complex human behavior, such as symbolic behavior and language. It had been proposed three experiments which participants, aged between 16 and 21 years, were submitted to Experiment
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/05/2011
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2. Avaliação do tipo de resposta requerida e do procedimento de ensino no estabelecimento de controle de estímulos compostos
Several factors may influence behavior control by just one or all aspects of a multidimensional stimulus. The present study investigated the effects of the response required during discriminative training of compound stimuli. Six 4 years old kindergarten children participated. All children were exposed to 3 conditions of simple simultaneous discrimination tr
Publicado em: 2009
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3. Social anxiety disorder and social skills: a psychometric and empirical study / Transtorno de ansiedade social e habilidades sociais: estudo psicométrico e empírico
Social Anxiety Disorder (SAD) has been considered a serious mental health problem for its high prevalence in young people and for the resulting disabilities in the performance and social interactions. It stands out, thus, as being fundamental to have comprehensive and validated instruments which evaluate both the resources and the social and functional impai
Publicado em: 2009
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4. Sucessive shifts of simple discrimination in infants / Discriminação simples com mudanças sucessivas na função dos estímulos em bebês
This study investigated with three infants, 10 to 14 months-old at the beginning of the experiment, the acquisition of successive shifts of simple discrimination (SSSD), considering that this repertoire can facilitate the identity matching-to-sample (IDMTS) learning, a potential prerequisite for the development of more complex symbolic repertoires. The task
Publicado em: 2008
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5. Construção de evidências para classificação automática de textos
Since the popularization of digital documents, automatic text classification is considered an important research topic. Despite the research efforts, there is still a demand for improving the performance of classifiers. Most of the research in automatic text classification focus on the algorithmic side, but there are few efforts focused on enhancing the data
Publicado em: 2008
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6. Expressão de zif-268 durante a aquisição, evocação e extinção de uma memória aversiva
In the behavioral paradigm of discriminative avoidance task, both short and long-term memories have been extensively investigated with behavioral and pharmacological approaches. The aim of the present study was to evaluate, using the abovementioned model, the hippocampal expression of zif-268 - a calcium-dependent immediate early gene involved with synaptic
Publicado em: 2008
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7. Resposta de observação e movimento dos olhos em uma situação de discriminação simples simultânea / Observing response and eye movement in a simultaneous simple discrimination situation
Previous studies draw attention to the importance of observing response to the discrimination establishment in differential reinforcement training. This research aims to analyze the observing response and eye movement in a simultaneous simple discrimination situation. Six adults participated. Images of Don Quixote screen painted by Pablo Picasso were used as
Publicado em: 2008
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8. Effects of simple discrimination training on identity match-to-sample performance of an capuchin monkey (Cebus apella) / Efeito do treino de discriminações simples sobre o repertório de pareamento ao modelo por identidade de um macaco-prego (Cebus apella)
This paper reports an experiment training to verify the function of simple simultaneous discrimination training with pairs of stimuli on identity match-to-sample performance with the same stimuli. An infant capuchin monkey with experience with identity match-to-sample served as subject. It was investigated how much training with a Repeated Shift of Simple Di
Publicado em: 2007
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9. The establishment of stimulus control over pairs of graphically similar letters and syllables: A comparison among trial and error, fading and stimulus shaping / Uma comparação entre procedimentos de estabelecimento de controle de estímulos entre pares de letras com grafias semelhantes e no reconhecimento de sílabas: tentativa e erro, fading e shaping de estímulos
The purpose of this study was to compare 3 procedures to establish stimulus control between graphically similar letters. The participants were 12 non literate children, ages 2 to 6.The children were first exposed to an identity matching to sample test with letters. Then, they were randomly assigned to 1 of 3 simple discrimination training procedures: trial a
Publicado em: 2007
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10. Stimulus equivalence with combined procedures and phonological consciousness in generalized reading acquisition / Equivalência de estímulos com procedimento combinados e consciência fonológica na aquisição da leitura generalizada
Equivalence class formation among pictures and spoken and printed words promotes reading with comprehension, but it does not establish the discriminative control by all the units of the word (letters and syllables). The application of combined special procedures (copy, dictation and oralization - fluently and spelled) while the teaching the conditional relat
Publicado em: 2006
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11. Superseletividade: efeito do requisito de resposta e do tempo de exposição ao estimulo
The organisms are surrounded by several physical stimuli that may affect their behaviors. In traditional psychology, attention explains why the organism is sensitive to only part of the environment. The Experimental Analysis of Behavior searches for past and present environmental variables that influence stimulus control over behavior. Overselectivity or res
Publicado em: 2006
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12. Efeitos da Segmentação em Sistemas Híbridos ANN+HMM
The Hidden Markov Models has become the widely used speech recognition framework due to its solid probabilistic approach. However, this robustness is damaged when the Markov chains are trained under the maximum likelihood method, which is poor in discriminative power. Until now several efficient techniques and algorithms have been developed to increase the p
Publicado em: 2005