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101.
Recent evidence suggests that both direct and indirect friendship with outgroup members (knowledge of ingroup members' friendship with outgroup members) can reduce prejudice toward the outgroup. Two surveys of cross-community relationships in Northern Ireland, using a student sample (N = 341) and a representative sample of the general population (N = 735), tested whether (a) direct and indirect friendships had generalized effects on both prejudice and perceived outgroup variability and (b) reduced anxiety about future encounters with outgroup members mediated such relationships. Structural equation modeling confirmed that, in both samples, direct and indirect cross-group friendships between Catholics and Protestants were associated with reduced prejudice toward the religious outgroup and increased perceived outgroup variability, via an anxiety-reduction mechanism. It is argued that emerging generalization hypotheses help to integrate both cognition and affect and interpersonal and intergroup approaches to contact. 相似文献
102.
Improving performance in strength tasks requires modifications charateristic of motor skill learning, such as more efficacious motor-unit firing behavior. Because domain-specific knowledge is integral to learning and performing motor kills, the present purpose was to examine selected factors of strength-specific knowledge and effects they might have on acquiring strength. Following baseline testing for maximal strength on a knee-extension task, participants were matched by sex and strength and placed into control (n=8) and treatment (n=8) groups. Quadriceps muscle electromyographic data were also collected. The treatment group underwent two educational sessions detailing muscle physiology, neural control of muscle force, and imagery training using this knowledge. The control group underwent two educational sessions about health and fitness. Following the educational sessions the participants were retested for strength. Analysis indicated that the education and imagery treatment had no effect on strength, nor did electromyographic measures indicate that the treatment group benefitted from intervention. It was concluded that the knowledge was simply not relevant to knee extension-force production or that use of the knowledge involved a disadvantageous internal focus of attention away from relevant task demands. 相似文献
103.
On-line predictive inferences in reading: Processing timeduring versusafter the priming context 总被引:1,自引:0,他引:1
Prior research suggests that predictive inferences take time to construct on-line. The present study examines the relative contribution of time available during and after reading an inducing context. In six experiments, we manipulated the presentation rate of the context and the delay between the onset of the last word in the context and a target word. A predicting, or a control, sentence context was followed by a target word, which represented the predicted event or an unlikely event. The results indicated that increasing the time available during reading of the context improved comprehension of explicit information, but it did not affect construction of inferences. In contrast, increasing the delay at the end of the context did not affect explicit comprehension, but it enhanced the probability of inferences, as revealed by shorter latencies in naming the predictable target word after the inducing context, relative to the control context. These findings show that readers defer making predictive inferences until 1 sec after the sentence context has been read, regardless of the time available when they are processing the context. 相似文献
104.
Robert Sternfeld Graeme Forbes Ronald M. Green Lorenzo Peña Manuel Liz Mark Rowlands 《Philosophia》1994,24(1-2):225-252
105.
Discrepancies between (a) self-reported psychosomatic symptoms and (b) actual fitness under non-stress (Study 1), as a function of trait anxiety, were examined, as well as discrepancies between (a) self-reported cognitive and somatic state anxiety and (b) objective measures of behavioural reactivity, physiological arousal, and performance under social-evaluative stress (Study 2). Results indicated that persons high in trait anxiety exaggerated distress in both conditions: They showed disproportionately greater self-reported concerns than actual problems. In contrast, those low in anxiety minimized distress (lower self-reported than actual problems). These discrepancy phenomena are explained in terms of biases in the processing of internal sources of information. 相似文献
106.
The semantical structures called T×W frames were introduced in (Thomason, 1984) for the Ockhamist temporal-modal language, O, which consists of the usual propositional language augmented with the Priorean operators P and F and with a possibility operator . However, these structures are also suitable for interpreting an extended language, SO, containing a further possibility operator s which expresses synchronism among possibly incompatible histories and which can thus be thought of as a cross-history simultaneity operator. In the present paper we provide an infinite set of axioms in SO, which is shown to be strongly complete forT ×W-validity. Von Kutschera (1997) contains a finite axiomatization of T×W-validity which however makes use of the Gabbay Irreflexivity Rule (Gabbay, 1981). In order to avoid using this rule, the proof presented here develops a new technique to deal with reflexive maximal consistent sets in Henkin-style constructions. 相似文献
107.
Predictive inferences take time to develop 总被引:1,自引:0,他引:1
In order to determine the time course of inferences about predictable events, predicting or control contexts were presented,
followed by a target word (Exps. 1A, B, and C) or a continuation sentence (Exp. 2) that confirmed or disconfirmed the predicted
event. Relative to the control condition, under the predicting condition there was facilitation in naming the confirming target
words 1500 ms after the onset of the last word in the context (Exp. 1C), but not after 500 ms (Exp. 1A), and only a tendency
after 1000 ms (Exp. 1B). In addition, there was facilitation in reading the post-target and final regions of the continuation
sentence that confirmed the predicted event, as well as inhibition when the predicted event was disconfirmed, but no effect
was observed on the target word itself (Exp. 2). It is concluded that, when the predicted event is highly constrained by the
context, predictive inferences are likely to be drawn on-line, but they take time to construct.
Received: 14 January 1998 / Accepted: 21 April 1998 相似文献
108.
109.
Alberto Montare 《Integrative psychological & behavioral science》1977,12(4):232-246
The present study demonstrates that a relationship exists between individual differences in temporal behavior and individual differences in human discrimination-reversal learning behavior. When the results of performance on a time-estimation task employing the method of reproduction are compared with the results of acquisition performance on a complex form of discrimination-reversal learning task is can be demonstrated that underestimation of time is associated with faster learning and overestimation of time is associated with slower learning of the discrimination task. The experimental design was based on the historical fact that the Sechenov-Pavlov and Spence-Hull formulations assigned a primary role in learning to excitation and inhibition as intervening variables between the input of stimulation and output of response. The present study also used the tasks of time estimation and discrimination learning as dependent variables; and the concept that underestimation of time is associated with and underlying predominance of excitatory processes as a hypothetical construct. The conclusion was reached that one of the many theoretical processes which may be used to explain discrimination learning is the concept that acquisition of the correct response may be viewed as a function of the individual rates at which excitatory processes come to be conditioned to a predominance over existing inhibitory processes. 相似文献
110.