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271.
Dynamic and proof-conditional approaches to discourse (exemplified by Discourse Representation Theory and Type-Theoretical Grammar, respectively) are related through translations and transitions labeled by first-order formulas with anaphoric twists. Type-theoretic contexts are defined relative to a signature and instantiated model-theoretically, subject to change. 相似文献
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274.
The paraventricular nucleus of the hypothalamus (PVN) has been implicated in several aspects of cardiovascular control. Stimulation of the PVN evokes changes in blood pressure and heart rate. Additionally, this brain area is connected to several limbic structures implicated in behavioral control, as well as to forebrain and brainstem structures involved in cardiovascular control. This evidence indicates that the PVN may modulate cardiovascular correlates of behavioral responses to stressful stimuli. Acute restraint is an unavoidable stressor that evokes marked and sustained cardiovascular changes, which are characterized by elevated mean arterial pressure (MAP) and an intense heart rate (HR) increase. We report on the effect of inhibition of PVN synapses on MAP and HR responses evoked by acute restraint in rats. Bilateral microinjection of the nonspecific synaptic blocker cobalt (CoCl(2), 1 mM/100 nl) into the PVN did not change the HR response or the initial peak of the MAP response to restraint stress, but reduced the area under the curve of the MAP response. Moreover, bilateral microinjection of cobalt in areas surrounding the PVN did not change the cardiovascular response to restraint. These results indicate that synapses in the PVN are involved in the neural pathway that controls blood pressure changes evoked by restraint. 相似文献
275.
Sonia Allain Boris Burle Thierry Hasbroucq Franck Vidal 《Psychonomic bulletin & review》2009,16(2):356-362
In choice reaction time tasks, subjects speed up before making an error, but slow down afterward to prevent the occurrence
of a new error. In some trials, the correct response is preceded by an incorrect electromyographic (EMG) activation too small
to reach the response threshold. In this article, we show that these incorrect EMG activations give rise to the same sequential
effects as overt errors: Before a trial containing an incorrect EMG activation, subjects speed up, whereas after that trial,
they slow down. These activations reflect errors that have been detected, inhibited, and corrected in time. As such, they
index the involvement of online executive control. 相似文献
276.
Paz Suárez-Coalla Fernando Cuetos 《Quarterly journal of experimental psychology (2006)》2017,70(4):772-781
Orthographic representations of words are indispensable for reading fluency. The ways in which these representations are developed and their resistance to decay are hotly debated topics. The aim of this study was to investigate the influence of semantic and phonological representations on the formation of orthographic representations in a transparent orthography. In order to achieve this objective, an experiment with three conditions was carried out. In the first condition, a group of university students were asked to repeatedly read 10 new words after semantic and phonological training, in the second condition another group of participants read the new words after phonological training, and in the third condition participants read without previous training. Finally, a follow-up session was performed to test the resistance to decay of the orthographic representations. The results showed that participants who had received semantic training formed the representations faster than participants in the other conditions, as indicated by the decrease in length effect. These results indicate the important role of previous knowledge when people face new written words. A month later these orthographic representations still remained in the lexicon of the participants. 相似文献
277.
Julian W. Fernando Léan V. O'Brien Nicholas J. Burden Madeline Judge Yoshihisa Kashima 《European journal of social psychology》2020,50(2):278-291
One way in which individuals can participate in action to change the society they live in is through the pursuit of an ideal society or “utopia”; however, the content of that utopia is a likely determinant of its motivational impact. Here we examined two predominant prototypes of utopia derived from previous research and theory—the Green and Sci-Fi utopias. When participants were primed with either of these utopias, the Green utopia was perceived to entail a range of other positive characteristics (e.g., warmth, positive emotions) and—provided it was positively evaluated—tended to elicit both motivation and behaviour for social change. In contrast, the Sci-Fi utopia was associated with low motivation, even when it was positively evaluated. Furthermore, the Green utopia was shown to elicit greater perceptions of participative efficacy, which in turn predicted the increase in social change motivation. 相似文献
278.
Kelp Christoph Boult Cameron Broncano-Berrocal Fernando Dimmock Paul Ghijsen Harmen Simion Mona 《Synthese》2020,197(12):5187-5202
Synthese - This paper critically assesses Sosa’s normative framework for performances as well as its application to epistemology. We first develop a problem for one of Sosa’s central... 相似文献
279.
Ann J. Carrigan Paul Stoodley Fernando Fernandez Mackenzie A. Sunday Mark W. Wiggins 《Applied cognitive psychology》2020,34(6):1369-1378
Echocardiographers are highly specialised, skilled practitioners who play a critical role in medical imaging diagnostics. Yet, little is known about the cognitive and perceptual attributes of experts within this domain. This study was designed to examine the role of individual differences in expertise. Specifically, the contribution of a domain general visual expertise and pattern recognition, or cue utilization. Data were collected from 42 echocardiographers and 43 naïve participants. All of the participants competed the Novel Object Memory Test (NOMT). When compared, the echocardiographers were more accurate than the naïve participants. The echocardiographers also completed an echocardiography edition of the Expert Intensive Skills Evaluation 2.0, to establish behavioral indicators of context-related cue utilization. Those with relatively higher cue utilization performed more accurately on the NOMT, controlling for exposure. These results suggest that a general perceptual ability contributes to echocardiography potential and a sensitivity to cue-based learning may contribute to expertise. 相似文献
280.
One of the most common types of errors produced by aphasic patients during oral word production is semantic errors. However, although aphasia semantic errors are often treated as a single homogenous group, there are, in fact, several subtypes defined by the nature of the error-target relationship: paradigmatic, if the two words are category coordinates; syntagmatic, if they are associatively related but from different semantic categories; and superordinate, if the meaning of the error is broader than the meaning of the target. The goal of this study was to investigate whether or not these various subtypes of semantic errors have a similar processing origin. With this objective, we compared the patterns of semantic errors made by a group of Alzheimer patients in a picture-naming task with those made by a group of aphasic patients. We examined the percentages of the different error types, the degree of association between target and error, and the frequency values both of errors and targets. The results suggest that the three subtypes of semantic errors have different origins: the superordinate appear to arise at the semantic level, the syntagmatic at the lexical level, and the paradigmatic at both levels of processing. 相似文献