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151.
Inhibition of return and the attentional set for integrating versus differentiating information. 总被引:10,自引:0,他引:10
Cuing a location with an uninformative cue leads to a facilitatory effect at that location shortly afterward and later (about 300 ms) to a negative effect called inhibition of return (IOR). Until recently, it was argued that IOR occurs in detection and localization tasks, but not in discrimination tasks. However, the authors of several recent studies have demonstrated IOR effects in discrimination tasks, although at a later cue-to-target stimulus onset asynchrony (SOA). In this study, the authors examined why IOR occurs at a later SOA in discrimination tasks. In Experiments 1 and 2, different time courses of exogenous cuing effects in detection and discrimination tasks were established. In Experiment 3, the authors examined the role of an attentional set on the time course of exogenous cuing effects by manipulating the proportion of trials in which a distractor is presented in the location opposite the target. A new framework for understanding exogenous cuing effects and their dependence on endogenous attention is proposed. 相似文献
152.
Studies in East European Thought - 相似文献
153.
This study was aimed at the examination of ‘mental construction’ in paradise fish by interactive learning, which is suggested
as an alternative hypothesis for backward or second-order conditioning. Avoidance of goldfish was established in paradise
fish by presenting a harmless goldfish (a novel stimulus) after an aversive event (mild electric shocks) in the dark compartment
of a shuttle tank. It was found that this avoidance depended on context pre-exposure. Experiment 1 was designed to study the
effect of mild shocks on shuttling activity in a familiar context. Experiment 2 aimed at establishing fear-conditioning to
the goldfish in a higher-order conditioning paradigm. In the course of training, unpaired stimuli were presented in the dark
compartment of the shuttle tank in such a manner that the presentation of mild shocks (20 mA) preceded the encounter with
a harmless fish (goldfish). Experiment 3 demonstrated the role of context pre-exposure in interactive learning. Results indicate
that (1) while 60 mA shocks resulted in avoidance of the dark compartment, the 20 mA mild shocks affected exploratory behaviour;
(2) after pre-exposure to the training environment, paradise fish avoided the dark compartment containing goldfish provided
that subjects had previously encountered mild, explorative shocks there; (3) this conditioned fear, a ‘mental construction’
of a potential danger, was proved to be transferable to another context and was consequently aimed specifically at the goldfish,
a living being, rather than the training context; (4) the pre-exposure to the shuttle tank was an important part of this training
procedure, that is, only subjects habituated to the shuttle tank avoided the goldfish. Results are discussed in the framework
of the Interactive Learning Hypothesis, which has been developed as an ethological approach to a higher-order conditioning
paradigm.
Received: 15 January 1999 / Accepted after revision: 18 August 1999 相似文献
154.
17 subjects diagnosed with schizophrenia and having auditory hallucinations in their case history were compared with 15 control subjects in an experiment on perceptual restoration. A tone pattern was presented, then interrupted by noise, under conditions such that the tone pattern could be heard as going on continuously (restoration). A series of 16 stimuli with a distractor of varying amplitude (noise) were presented. Healthy controls reliably reported restoration in Presentations 9 and 10. Four schizophrenics reported no restoration at all. Three of them reported restoration earlier than controls, and four others reported it later than controls and continued to report the phenomenon after a point at which no healthy controls did. Six other presented an irregular pattern of response to the phenomenon. The results are discussed with respect to the neurophysiological functioning of the auditory pathway and schizophrenic symptoms. 相似文献
155.
Analysis of 1998 statistics for individual performance in the PGA European Tour yielded significant differences between some shot-making skills (drive distance, total driving, greens in regulation, and sand saves) between the top 10 and bottom 10 money winners, replicating (with partially different results) a result found for the 1995 American PGA Tour by Engelhardt. 相似文献
156.
Most creativity techniques encourage breaking away from stored knowledge and known solutions. Counter to this approach, this study assessed the effectiveness of an intervention based on introducing minimal variations to well-established knowledge structures. Two groups were tasked with generating creative metaphorical titles for short essays. While the experimental group had been trained in extending and reinstantiating conceptual metaphors, the control group had been trained on creativity techniques unrelated to the task. Training increased the number of novel metaphorical titles derived from conceptual metaphors, and these titles were more creative than novel metaphorical titles not derived from conceptual metaphors. Finally, the titles generated via the deliberate use of the trained heuristics were as creative as those of the same type that were spontaneously produced by the control group. The implications for interventions to promote creativity are discussed. 相似文献
157.
Réka Török István Tóth-Király Beáta Bőthe Gábor Orosz 《Current psychology (New Brunswick, N.J.)》2017,36(4):764-773
The goal of the study was to examine the dimensionality of the Career Decision Self-Efficacy Scale Short Form (CDSES-SF, Betz et al. 1996). Integrating several previous findings from different cultures, we found that the bifactor structure of the CDSES-SF on a Hungarian sample of 649 respondents showed the best model fit. This structure includes a general CDSE factor covering 15 items and the original five specific factors (self-appraisal, occupational information, goal selection, planning, and problem solving) covering three items each. This short form of CDSES shows an acceptable model fit and appropriate reliability in terms of the Cronbach’s alpha and omega values. Regarding career decision self-efficacy, a large proportion of variance was explained by the general factor and to a smaller extent by the specific factors. These results can be considered as a first step in resolving the paradox of the dimensionality of CDSES-SF. 相似文献
158.
159.
ResumenSe llevó a cabo un experimento con vistas a estudiar el procesamiento de dibujos y de palabras en el marco de los paradigmas de Stroop y de anticipación. Las variables de tarea, modalidad y de relación semántica fueron equivalentes en ambos paradigmas. Según el intervalo temporal entre los estímulos se establecieron tres condiciones experimentales: condición previa—anticipación—, condición simultánea—Stroop—, y condición previa y simultánea—Stroop y anticipación—. Los resultados ponen de manifiesto la existencia de efectos de facilitación e interferencia de signo opuesto que se atribuyen a la interacción entre la secuencia temporal entre los estímulos componentes, las demandas de las respectivas tareas y la modalidad en la memoria activa. Los resultados se discuten en relación con el diferente procesamiento a que se someten los dibujos y las palabras y la naturaleza del formato de representación. 相似文献
160.