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881.
Teresa Araujo Silva M Leyser Gonçalves F Garcia-Mijares M 《The Behavior analyst / MABA》2007,30(1):17-30
When neural events are analyzed as stimuli and responses, functional relations among them and among overt stimuli and responses can be unveiled. The integration of neuroscience and the experimental analysis of behavior is beginning to provide empirical evidence of involvement of neural events in the three-term contingency relating discriminative stimuli, responses, and consequences. This paper is aimed at highlighting exemplar instances in the development of this issue. It has long been known that the electrical stimulation of certain cerebral areas can have a reinforcing function. Extraordinary technological advances in recent years show that neural activity can be selected by consequences. For example, the activity of in vitro isolated neurons that receive dopamine as a reinforcer functions as a cellular analogue of operant conditioning. The in vivo activity of populations of neurons of rats and monkeys can be recorded on an instant-to-instant basis and can then be used to move mechanical arms or track a target as a function of consequences. Neural stimulation acts as a discriminative stimulus for operant responses that are in turn maintained by neural consequences. Together with investigations on the molecular basis of classical conditioning, those studies are examples of possibilities that are being created for the study of behavior-environment interactions within the organism. More important, they show that, as an element in the three-term contingency, neural activity follows the same laws as other events. 相似文献
882.
Anna Storozhuk 《Journal for General Philosophy of Science》2007,38(2):369-382
In the article two viewpoints on the mind’s influence on perception are considered. One of them was developed on the assumption
that perception is a nonproblematic source of knowledge about the world, which is free from mind’s influence—perception as
a mirror-image. Another viewpoint is perception as action, i.e. active search and gathering the relevant information, its
processing and evaluation. First viewpoint has dominated in philosophy for a long time, the second one has been developing
in psychology from the 80th of the 20th century. The aim of the paper is to examine some philosophically significant corollaries
from both positions concerning objectiveness, epistemological status of an observation, truth, meaning of name. Analysis showed
that perception as action is non-compatible with many traditional concepts, and it goes both against empiricism and against
realism as it involves some critical arguments, e.g. theory ladenness of observations, underdetermination of theory by facts,
the historical development of a scientific fact. 相似文献
883.
Dr. med. Philipp Kuwert Carsten Spitzer Anna Träder Harald J. Freyberger Michael Ermann 《Psychotherapeut》2007,52(3):212-217
Psychological late-life sequelae of war childhood have rarely been examined. The study evaluated posttraumatic symptoms and current psychopathology in a sample of former German war children of which 10.8% reported significant posttraumatic symptoms indicating a possible posttraumatic stress disorder (PTSD). The presence of PTSD symptoms was significantly associated with current psychopathological distress, even 6 decades after World War II. Our data underline the urgent need for research in this field. Clinical implications for a psychotherapeutic approach are discussed. 相似文献
884.
Syntactic priming in 3- and 4-year-old children: evidence for abstract representations of transitive and dative forms 总被引:1,自引:0,他引:1
The current studies used a syntactic priming paradigm with 3- and 4-year-old children. In Experiment 1, children were asked to describe a series of drawings depicting transitive and dative relations to establish baseline production levels. In Experiment 2, an experimenter described a similar series of drawings using one of two syntactic forms (i.e., active/passive for transitive; double-object/prepositional for dative). Children were then asked to describe pictures identical to those shown in the corresponding baseline procedure. In both transitive and dative conditions, 4-year-old children were more likely to use a particular syntactic form if it had been used by the experimenter. Three-year-old children did not show priming effects, but their production of transitive sentences was higher following transitive primes than in Experiment 1. In Experiment 3, an additional group of 3-year-olds participated in a procedure in which they repeated the experimenter's sentences before describing the pictures. This procedure yielded significant priming effects for transitive and dative forms. These results indicate that very young children possess abstract syntactic representations, but that their access to these representations is sensitive to task demands. 相似文献
885.
Pérez-González LA García-Asenjo L Williams G Carnerero JJ 《Journal of applied behavior analysis》2007,40(4):697-701
In the type of intraverbal that consists of saying the opposite of a word, two intraverbals are related to one another because the response form of each intraverbal functions as part of a discriminative stimulus for the other (e.g., "cold" in response to "name the opposite of hot," and vice versa). Moreover, the contextual cue "Name the opposite of--" is the same in the two intraverbals. The purpose of the present research was to explore a procedure designed to promote emergence of intraverbals of this type. Two children with pervasive developmental disorder learned pairs of intraverbals. Thereafter, they were tested for emergence of intraverbals with reversed stimulus-response functions. Results indicate that, although the participants did not initially show emergence of intraverbals with reversed stimulus-response functions, repeated cycles of probing and teaching facilitated emergence of these relations. 相似文献
886.
887.
Grzywacz JG Arcury TA Márin A Carrillo L Burke B Coates ML Quandt SA 《The Journal of applied psychology》2007,92(4):1119-1130
Work-family conflict research has focused almost exclusively on professional, White adults. The goal of this article was to expand the understanding of culture and industry in shaping experiences and consequences of work-family conflict. Using in-depth interview data (n = 26) and structured survey data (n = 200) from immigrant Latinos employed in the poultry processing industry, the authors evaluated predictions drawn from emerging models emphasizing the influence of cultural characteristics such as collectivism and gender ideology on work-family conflict. Results indicated that immigrant Latinos in poultry processing experienced infrequent work-to-family conflict; both the level and the antecedents of work-to-family conflict differed by gender, with physical demands contributing to greater conflict for women but not men. In addition, there was little evidence that work-family conflict was associated with health in this population. These results demonstrate how traditional models of work-family conflict need to be modified to reflect the needs and circumstances of diverse workers in the new global economy. 相似文献
888.
The role of attention in the formation of auditory streams 总被引:1,自引:0,他引:1
There is controversy over whether stream segregation is an attention-dependent process. Part of the argument is related to the initial formation of auditory streams. It has been suggested that attention is needed only to form the streams, but not to maintain them once they have been segregated. The question of whether covert attention at the beginning of a to-be-ignored set of sounds will be enough to initiate the segregation process remains open. Here, we investigate this question by (1) using a methodology that does not require the participant to make an overt response to assess how the unattended sounds are organized and (2) structuring the test sound sequence to account for the covert attention explanation. The results of four experiments provide evidence to support the view that attention is not always required for the formation of auditory streams. 相似文献
889.
Sillero Quintana M Refoyo Román I Lorenzo Calvo A Sampedro Molinuevo J 《Perceptual and motor skills》2007,104(2):547-561
A simple method was designed to evaluate visual abilities such as disance visual acuity, binocular horizontal visual field, simple and choice visual reaction times, and stereoscopic vision in skilled 11- to 13-yr.-old basketball players participating in a 15-day summer training camp. On a test battery, visual abilities were monitored in 473 players of the Spanish Basketball Federation over a 5-yr. period. The players showed outstanding scores on distance visual acuity and stereoscopic vision, and good visual reaction times and horizontal visual fields. When scores were compared by sex and age, significant differences on certain visual measures were observed. Many layers showed crossed eye-hand dominance. Visual screening programs may help promote visual health among junior basketball players and could be used for performance training. 相似文献
890.
A long-standing debate on assessment has troubled research on field dependence-independence. The main arguments and a recent measurement proposal by Riding, et al., are revised to illustrate the futility of this debate and to defend the strength of the cognitive style dimension. 相似文献