Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 6 de 6
Filter
Add more filters










Publication year range
1.
Rev. bras. ter. comport. cogn ; 14(3): 34-50, dez. 2012. ilus, tab
Article in Portuguese | Index Psychology - journals | ID: psi-58371

ABSTRACT

Análises dos movimentos dos olhos frequentemente apresentam resultados inconclusivos sobre a função discriminativa dos estímulos que estes movimentos produzem. Esta pesquisa objetivou apresentar a análise da primeira fixação dos olhos de participantes em cada componente de uma tarefa de discriminação simples sucessiva como indicadora das funções discriminativas de dois conjuntos de estímulos. Quatro universitários foram submetidos a tarefas de discriminação em que respostas em um teclado produziram pontos quando emitidas diante de um conjunto de estímulos, mas não de outro. O olhar dos participantes foi rastreado. Realizaram-se análises da frequência total, duração total, duração média e duração da primeira fixação dos olhos dos participantes sobre os SDs. A duração da primeira fixação se mostrou mais preditiva das diferentes funções dos conjuntos de estímulos antecedentes à tarefa manual. Os resultados são discutidos em termos das características dinâmicas dos estímulos e da importância de análises dos movimentos dos olhos no âmbito aplicado.(AU)


Behavior analyses of eye movements frequently present non-conclusive results about discriminative functions of the stimuli produced by these movements in relation to following responses. This paper presents an analysis of the first fixation of the eyes of the participants on each component during a simple, successive discrimination task as indicative of discriminative functions of two stimuli sets. Four undergraduate students were separately submitted to a simple, successive discrimination task in which space bar pressing on a computer keyboard produced points when emitted during presentation of stimuli of one set but not during presentation of stimuli of a second set. After discriminative control of bar pressing was achieved discriminative functions were reverted. Eye movements of participants were tracked during session. Analyses of total frequency, total duration, average duration, and first duration of eye fixations of the participants toward each set of discriminative stimuli were made. Duration of first fixation was more predictive of the different discriminative functions of antecedent stimuli to manual task. Results are discussed in terms of dynamic characteristics of stimuli and of the relevance of eye movements for applied sets.(AU)


Subject(s)
Humans , Attention , Vision, Ocular , Observation
2.
Rev. bras. ter. comport. cogn ; 14(3): 34-50, dez. 2012. ilus, tab
Article in Portuguese | LILACS | ID: lil-691699

ABSTRACT

Análises dos movimentos dos olhos frequentemente apresentam resultados inconclusivos sobre a função discriminativa dos estímulos que estes movimentos produzem. Esta pesquisa objetivou apresentar a análise da primeira fixação dos olhos de participantes em cada componente de uma tarefa de discriminação simples sucessiva como indicadora das funções discriminativas de dois conjuntos de estímulos. Quatro universitários foram submetidos a tarefas de discriminação em que respostas em um teclado produziram pontos quando emitidas diante de um conjunto de estímulos, mas não de outro. O olhar dos participantes foi rastreado. Realizaram-se análises da frequência total, duração total, duração média e duração da primeira fixação dos olhos dos participantes sobre os SDs. A duração da primeira fixação se mostrou mais preditiva das diferentes funções dos conjuntos de estímulos antecedentes à tarefa manual. Os resultados são discutidos em termos das características dinâmicas dos estímulos e da importância de análises dos movimentos dos olhos no âmbito aplicado.


Behavior analyses of eye movements frequently present non-conclusive results about discriminative functions of the stimuli produced by these movements in relation to following responses. This paper presents an analysis of the first fixation of the eyes of the participants on each component during a simple, successive discrimination task as indicative of discriminative functions of two stimuli sets. Four undergraduate students were separately submitted to a simple, successive discrimination task in which space bar pressing on a computer keyboard produced points when emitted during presentation of stimuli of one set but not during presentation of stimuli of a second set. After discriminative control of bar pressing was achieved discriminative functions were reverted. Eye movements of participants were tracked during session. Analyses of total frequency, total duration, average duration, and first duration of eye fixations of the participants toward each set of discriminative stimuli were made. Duration of first fixation was more predictive of the different discriminative functions of antecedent stimuli to manual task. Results are discussed in terms of dynamic characteristics of stimuli and of the relevance of eye movements for applied sets.


Subject(s)
Humans , Attention , Observation , Vision, Ocular
3.
Phytomedicine ; 7(3): 239-43, 2000 Jun.
Article in English | MEDLINE | ID: mdl-11185736

ABSTRACT

Six different mixtures of garlic distilled oils containing diallyl disulfide (DDS) and diallyl trisulfide (DTS), ranging from 1 to 51% and 88 to 38% respectively, have been assayed against a number of yeasts (C. albicans, C. tropicalis and B. capitatus), gram-positive bacteria (S. aureus and B. subtilis) and gram-negative bacteria (P. aeruginosa and E. coli). Results obtained support a specific antifungal more than an antibacterial activity and implicate DDS as the active constituent. Incubation of garlic extracts made up of 1% DDS and 88% DTS resulted, in fact, in the absence of growth inhibition against all the tested microorganisms, whereas garlic oils with higher quantities of DDS showed significant inhibitory activity, increasing with the increase of DDS amount.


Subject(s)
Allyl Compounds/pharmacology , Anti-Infective Agents/pharmacology , Garlic , Gram-Negative Bacteria/drug effects , Gram-Positive Bacteria/drug effects , Plants, Medicinal , Sulfides/pharmacology , Yeasts/drug effects , Anti-Bacterial Agents , Humans , Microbial Sensitivity Tests , Oils, Volatile , Plant Oils/pharmacology
SELECTION OF CITATIONS
SEARCH DETAIL
...