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Goal-directed attention prioritises perception of task-relevant stimuli according to location, features, or onset time. In this study we compared the behavioural timecourse of goal-directed selection to locations and colours by varying the stimulus-onset asynchrony (SOA) between cue and target in a strategic cueing paradigm. Participants reported the presence or absence of a target following prior information regarding its location or colour. Results revealed that preparatory selection by colour is more effective at enhancing perceptual sensitivity than selection by location, even though both types of cue provided equivalent overall information. More detailed analysis revealed that this advantage arose due a limitation of spatial attention in maintaining a sufficiently broad focus (>2°) for target detection across multiple stimuli. In contrast, when target stimuli fell within 2° of the spatial attention spotlight, the strategic advantages and speed of spatial and colour attention were equated. Our findings are consistent with the conclusion that, under spatially optimal conditions, prior spatial and colour information are equally proficient at guiding top-down selection. When spatial locations are ambiguous, however, colour-based selection is the more efficient mechanism. 相似文献
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Minda Borun David T. Schaller Margaret B. Chambers Steven Allison-Bunnell 《Visitor Studies》2013,16(2):145-159
ABSTRACT This study explores the effects of learning style, age and gender on preferences for online educational activities. David Kolb's Experiential Learning Theory (Kolb, 1984) is used as a lens to examine the responses of online learners to five types of educational activities. Results indicate that learning style influences preference for learning activity. The relationship is stronger among adults than among children aged 10–13 (middle school). The four learning styles were not evenly distributed. “Practical” (likes to solve problems and find solutions) was the most frequent style among both children and adults (37%). “Creative” (enjoys brainstorming and open-ended exploration) was the least frequent (8%). These data have particular relevance to the development of educational activities, suggesting that open-ended exploration with “no right answers” may not be the most satisfying and appealing approach for many learners. The results of this study provide new insight into online audiences and can help developers of multimedia activities to create experiences that will appeal to all kinds of learners. 相似文献
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Katherine S. White Kyle E. Chambers Zachary Miller Vibhuti Jethava 《Quarterly journal of experimental psychology (2006)》2017,70(12):2560-2576
Language learners are sensitive to phonotactic patterns from an early age, and can acquire both simple and 2nd-order positional restrictions contingent on segment identity (e.g., /f/ is an onset with /æ/but a coda with /?/). The present study explored the learning of phonototactic patterns conditioned on a suprasegmental cue: lexical stress. Adults first heard non-words in which trochaic and iambic items had different consonant restrictions. In Experiment 1, participants trained with phonotactic patterns involving natural classes of consonants later falsely recognized novel items that were consistent with the training patterns (legal items), demonstrating that they had learned the stress-conditioned phonotactic patterns. However, this was only true for iambic items. In Experiment 2, participants completed a forced-choice test between novel legal and novel illegal items and were again successful only for the iambic items. Experiment 3 demonstrated learning for trochaic items when they were presented alone. Finally, in Experiment 4, in which the training phase was lengthened, participants successfully learned both sets of phonotactic patterns. These experiments provide evidence that learners consider more global phonological properties in the computation of phonotactic patterns, and that learners can acquire multiple sets of patterns simultaneously, even contradictory ones. 相似文献
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Jerry Suls John Chambers Zlatan Krizan Chad R. Mortensen Bryan Koestner Kathryn Bruchmann 《Organizational behavior and human decision processes》2010
In six experiments, we tested four explanations for the better/worse-than-average effect (B/WTA) by manipulating the number of items comprising the target or referent of direct comparison. A single-item target tended to be rated more extremely than a single-item or a multi-item referent (Experiments 1–3). No B/WTA was obtained, however, when a multi-item target was compared with either a single- or multi-item referent (Experiments 4 and 5). A bias favoring a multi-item target was found only if cohesiveness among the items was increased through instructions (Experiment 6). The Unique-Attributes Hypothesis generally provided the best explanation the findings; the focalism explanation also demonstrated some empirical viability. The results suggest that important preferential decision-making outcomes can be affected by both the number of items and whether items are strategically manipulated to serve as targets or referents of comparison. 相似文献
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Jemma C. Chambers Lynne Eccleston Andrew Day Tony Ward Kevin Howells 《Aggression and violent behavior》2008,13(4):276-284
Advances in offender rehabilitation theory have led to the development of a clear framework of the factors that need consideration for an offender to be ready for therapy and thus gain maximum benefits. Here, we examine in greater detail the role of cognition in readiness for rehabilitation in violent offenders. We assess how cognitive processes and distortions common in violent offenders may affect and hamper rehabilitation readiness. Methods for remediation of cognitive factors that diminish readiness, including motivational interviewing, are discussed. We conclude that cognitive factors are critical in the assessment of readiness in violent offenders and therapeutic efforts to enhance engagement. 相似文献
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Recent studies have shown that listeners use verbs and other predicate terms to anticipate reference to semantic entities during real-time language comprehension. This process involves evaluating the denoted action against relevant properties of potential referents. The current study explored whether action-relevant properties are readily available to comprehension systems as a result of the embodied nature of linguistic and conceptual representations. In three experiments, eye movements were monitored as listeners followed instructions to move depicted objects on a computer screen. Critical instructions contained the verb return (e.g., Now return the block to area 3), which presupposes the previous displacement of its complement object--a property that is not reflected in perceptible or stable characteristics of objects. Experiment 1 demonstrated that predictions for previously displaced objects are generated upon hearing return, ruling out the possibility that anticipatory effects draw directly on static affordances in perceptual symbols. Experiment 2 used a referential communication task to evaluate how communicative relevance constrains the use of perceptually derived information. Results showed that listeners anticipate previously displaced objects as candidates upon hearing return only when their displacement was known to the speaker. Experiment 3 showed that the outcome of the original act of displacement further modulates referential predictions. The results show that the use of perceptually grounded information in language interpretation is subject to communicative constraints, even when language denotes physical actions performed on concrete objects. 相似文献