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51.
Accessing lexical ambiguity: Effects of context and dominance 总被引:3,自引:0,他引:3
Summary The paper examines the effects of sentential context and frequency of meaning (dominance) on the lexical access of ambiguous words. Two experiments were carried out using Swinney's (1979) cross-modal paradigm. The sentential contexts were constructed in such a way as to make salient the most characteristic features of either the dominant (Experiment 1) or the secondary (Experiment 2) meaning of the ambiguous word. The claim was that if context is sufficiently constraining selective access of the congruent meaning can be obtained. Consistent with this prediction, context biasing the dominant meaning facilitated lexical decision only on target words related to the dominant meaning. When context biased the secondary meaning, both context and dominance produced a facilitation effect.The research reported here was supported by grants from the Ministero della Pubblica Istruzione (fondi 40%) and the Consiglio Nazionale delle Ricerche 相似文献
52.
Correlations between single-item self-reports of intelligence and IQ scores are rather low (.20–.25) in college samples. The literature suggested that self-reports could be improved by three strategies: (1) aggregation, (2)item weighting, and (3) use of indirect, rather than direct, questions. To evaluate these strategies, we compared the validity of aggregated and unaggregated versions of direct measures with four indirect measures (Gough's Intellectual efficiency scale, Hogan's Intellect composite scale, Sternberg's Behavior Check List, and Trapnell's Smart scale). All measures were administered to two large samples of undergraduates ( N s = 310, 326), who also took an IQ test. Although results showed some success for both direct and indirect measures, the failure of their validities to exceed .30 impugns their utility as IQ proxies in competitive college samples. The content of the most valid items referred to global mental abilities or reading involvement. Aggregation benefited indirect more than direct measures, but prototype-weighting contributed little. 相似文献
53.
In the present experiments, we investigated the facilitatory effects of auditorily presented prime words in neutral sentence contexts upon visually presented target words. It is shown that when the target task is a lexical decision, facilitation is obtained when the relationship between the prime and the target is one of synonymy (and low association strength). When instead the target is an antonym (again of low association strength), there is no priming effect; lexical decision is facilitated only when the prime word is presented in isolation. In further experiments, it is shown that primes in sentence contexts can produce facilitation of antonyms if they are strongly associated, or in the absence of association if the target must be named. The results are explained in terms of an integration process, which checks for the coherence between an upcoming word and the highest available level of representation of the context, but which affects only responses in the lexical decision task. 相似文献
54.
55.
Bottini G Berlingeri M Basilico S Passoni S Danelli L Colombo N Sberna M Franceschi M Sterzi R Paulesu E 《Behavioural neurology》2012,25(2):61-72
We explored the neuropsychological and neuromorphometrical differences between probable Alzheimer's disease patients showing a good or a bad response to nine months treatment with donepezil. Before treatment, the neuropsychological profile of the two patient groups was perfectly matched. By the ninth month after treatment, the BAD-responders showed a decline of the MMSE score together with a progressive impairment of executive functions. A voxel-based morphometry investigation (VBM), at the time of the second neuropsychological assessment, showed that the BAD-responders had larger grey and white matter atrophies involving the substantia innominata of Meynert bilaterally, the ventral part of caudate nuclei and the left uncinate fasciculus, brain areas belonging to the cholinergic pathways. A more widespread degeneration of the central cholinergic pathways may explain the lack of donepezil efficacy in those patients not responding to a treatment that operates on the grounds that some degree of endogeneous release of acetylcholine is still available. 相似文献
56.
Matteo Colombo 《Phenomenology and the Cognitive Sciences》2014,13(2):217-238
How should we understand the claim that people comply with social norms because they possess the right kinds of beliefs and preferences? I answer this question by considering two approaches to what it is to believe (and prefer), namely: representationalism and dispositionalism. I argue for a variety of representationalism, viz. neural representationalism. Neural representationalism is the conjunction of two claims. First, what it is essential to have beliefs and preferences is to have certain neural representations. Second, neural representations are often necessary to adequately explain behaviour. After having canvassed one promising way to understand what neural representations could be, I argue that the appeal to beliefs and preferences in explanations of paradigmatic cases of norm compliance should be understood as an appeal to neural representations. 相似文献
57.
Francesca Nichelli Gabriella Scala Chiara Vago Daria Riva Sara Bulgheroni 《Child neuropsychology》2013,19(5):431-443
Inhibition problems are reportedly at the heart of several childhood pathologies and learning disorders, but few instruments are available for their in-depth investigation. The main aim of the present study was to investigate the development of a capacity to inhibit automatic responses in young and middle childhood. For this purpose, 100 children between 6 and 11 years old were administered two tests that measure executive inhibition: an animal Stroop task (in a paper-and-pencil version of the computerized original proposed by Wright and colleagues in 2003) and a conflicting motor response task. Our results indicate that performance clearly improves in both tests during the course of a child's development and the data obtained with the paper-and-pencil animal Stroop task overlap with those obtained with the computerized version. When the task calls for a stronger inhibitory control (the incongruent situation in the Stroop task and in the opposite condition in the conflicting motor response test) the trend of the response times is less homogeneous, peaking in the youngest and oldest age brackets considered. The positivity and significance of the correlation coefficients between the two tests also suggest that the two measures are tapping cognitive abilities that are developing in a parallel fashion. 相似文献
58.
In Experiment 1, 2 groups of pigeons were trained to respond to either a 4-item (A→B→C→D) or 5-item (A→B→C→D→E) list. After learning their respective list, half of the subjects were trained on a positive pair with reinforcement provided when pairs were responded to in the order true to that of the original sequence (4-item: B→C; 5-item: B→D). The remaining subjects were trained on a negative pair with reinforcement provided for responding to the pairs in the order opposite to that learned in the original sequence (4-item: C→B; 5-item: D→B). Subjects in the positive pair condition learned their respective pair faster than did subjects in the negative pair condition. In Experiment 2, after reaching criterion on a 4-item list, subjects received 16 BC probe trials spread across 4 sessions of training. Subjects performed significantly above chance on the probe trials. The performance of our subjects in Experiments 1 and 2 demonstrates that, similar to monkeys, pigeons form a representation of the lists that they learn. 相似文献
59.
Marek Nieznański Micha? Obidziński Emilia Zyskowska Daria Niedzia?kowska 《Advances in cognitive psychology / University of Finance and Management in Warsaw》2015,11(3):106-117
Previous research has demonstrated that context memory performance decreases as a
result of cognitive load. However, the role of specific executive resources
availability has not been specified yet. In a dual-task experiment, participants
performed three kinds of concurrent task engaging: inhibition, updating, or
shifting operations. In comparison with a no-load single-task condition, a
significant decrease in item and context memory was observed, regardless of the
kind of executive task. When executive load conditions were compared with
non-specific cognitive load conditions, a significant interference effect was
observed in the case of the inhibition task. The inhibition process appears to
be an aspect of executive control, which relies on the same resource as
item-context binding does, especially when binding refers to associations
retrieved from long-term memory. 相似文献
60.
Simona Sacchi Andrea Carnaghi Federica Castellini Monica Colombo 《Political psychology》2013,34(1):91-105
In 2007, the two most important Italian left‐wing parties merged into a single political entity. This study intends to analyze the merging process. Specifically, and in line with the ingroup projection hypothesis of Mummendey & Wenzel, we have explored whether the identification and the favoritism toward the upcoming common group was affected by the perceivers' projection of specific and common stereotypical traits from the subordinate groups to the superordinate one. Political militants' (N = 132) levels of ingroup identification; their representations of the previous ingroup, outgroup, and of the new party; and their attitudes towards the common group were assessed. Results confirmed that the cognitive representation of the merged party was shaped much more on the basis of the typical traits of the ingroup than of the outgroup. Moreover, structural equation analyses showed that the identification with the superordinate category and the consequent favoritism toward the merger were related to the projection of ingroup attributes. The findings also suggested that the ingroup projection may be particularly crucial when the intergroup bias is high. Finally, political implications are discussed in terms of obstacles and resources inherent to the merging process. 相似文献