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51.
Working-memory capacity, proactive interference, and divided attention: limits on long-term memory retrieval 总被引:12,自引:0,他引:12
Kane MJ Engle RW 《Journal of experimental psychology. Learning, memory, and cognition》2000,26(2):336-358
Two experiments examined how individual differences in working-memory capacity (WM) relate to proactive interference (PI) susceptibility. We tested high and low WM-span participants in a PI-buildup task under single-task or dual-task ("load") conditions. In Experiment 1, a finger-tapping task was imposed during encoding and retrieval of each list; in Experiment 2, tapping was required during encoding or retrieval. In both experiments, low spans showed greater PI than did high spans under no load, but groups showed equivalent PI under divided attention. Load increased PI only for high spans, suggesting they use attention at encoding and retrieval to combat PI. In Experiment 2, only low spans showed a dual-task cost on List 1 memory, before PI built up. Results indicate a role for attentional processing, perhaps inhibitory in nature, at encoding and retrieval, and are discussed with respect to theories of WM and prefrontal cortex function. 相似文献
52.
Randall W. Engle 《Intelligence》1977,1(4):358-368
Lists of digits 5 and 7 items in length were presented to second graders, sixth graders, and low-IQ sixth graders in either the visual or auditory modality. Half the auditory lists were followed by the redundant nonrecalled, auditorily presented word “recall” which served as a list suffix. The second graders had the most errors in the ordered recall task followed by the low-IQ sixth- and normal sixth-graders in that order. The size of the modality and suffix effects for the various groups seemed to indicate that, for the younger subjects, a larger proportion of the recall after auditory presentation comes from the Prelinguistic Auditory Store than for the older subjects. 相似文献
53.
Randall W. Engle 《Memory & cognition》1980,8(3):247-252
Three experiments tested the effect of the availability of the last item on the recall performance for earlier list items in a stimulus suffix paradigm. A decrement due to the suffix occurred for preterminal positions even when the last item was made available. This preterminal suffix effect was found to be more extensive in a condition in which subjects were free to recall the end items first than in a condition in which subjects were forced to recall in a strict left-to-right fashion. 相似文献
54.
Calderón-Garcidueñas L Mora-Tiscareño A Ontiveros E Gómez-Garza G Barragán-Mejía G Broadway J Chapman S Valencia-Salazar G Jewells V Maronpot RR Henríquez-Roldán C Pérez-Guillé B Torres-Jardón R Herrit L Brooks D Osnaya-Brizuela N Monroy ME González-Maciel A Reynoso-Robles R Villarreal-Calderon R Solt AC Engle RW 《Brain and cognition》2008,68(2):117-127
Exposure to air pollution is associated with neuroinflammation in healthy children and dogs in Mexico City. Comparative studies were carried out in healthy children and young dogs similarly exposed to ambient pollution in Mexico City. Children from Mexico City (n: 55) and a low polluted city (n:18) underwent psychometric testing and brain magnetic resonance imaging MRI. Seven healthy young dogs with similar exposure to Mexico City air pollution had brain MRI, measurement of mRNA abundance of two inflammatory genes cyclooxygenase-2, and interleukin 1 beta in target brain areas, and histopathological evaluation of brain tissue. Children with no known risk factors for neurological or cognitive disorders residing in a polluted urban environment exhibited significant deficits in a combination of fluid and crystallized cognition tasks. Fifty-six percent of Mexico City children tested showed prefrontal white matter hyperintense lesions and similar lesions were observed in dogs (57%). Exposed dogs had frontal lesions with vascular subcortical pathology associated with neuroinflammation, enlarged Virchow-Robin spaces, gliosis, and ultrafine particulate matter deposition. Based on the MRI findings, the prefrontal cortex was a target anatomical region in Mexico City children and its damage could have contributed to their cognitive dysfunction. The present work presents a groundbreaking, interdisciplinary methodology for addressing relationships between environmental pollution, structural brain alterations by MRI, and cognitive deficits/delays in healthy children. 相似文献
55.
A psychotropic placebo can help people resist the misinformation effect, an effect thought to be caused by a shift to more stringent source monitoring. When this shift occurs has been unclear. To address this issue we gave some people - but not others - a phoney cognitive-enhancing drug we called R273. Shortly afterwards, everyone took part in a misinformation effect experiment. To gather evidence about source monitoring we surreptitiously recorded time to read the misleading postevent narrative, and response time at test. Our findings suggest that people shifted to more stringent source monitoring at test. Moreover, people with higher working memory capacity (WMC) performed better than people with lower WMC - but only when they were told they had received R273, a finding that fits with research showing that WMC can confer advantages in situations demanding effortful control, but not when automatic heuristics suffice. 相似文献
56.
The measurement of body-image dissatisfaction–satisfaction: Is rating importance important? 总被引:1,自引:1,他引:0
Some researchers have argued that evaluative body image may be better assessed by measures that weight dissatisfaction–satisfaction ratings by their subjective importance to individuals. The Body Areas Satisfaction Scale (BASS) is a frequently used, standardized assessment of evaluative body image, albeit one that does not use differential item weights. This investigation, with 410 female and male college students, examined whether an importance-weighted revision of the BASS would have incremental validity relative to the original version in the prediction of multiple criterion variables. Results confirmed the reliability and validity of unweighted and weighted versions. However, the validity of weighted versions did not surpass that of the original BASS. The extremity of individuals’ satisfaction and dissatisfaction ratings appears inherently to reflect the importance placed on physical attributes for self-evaluation. Moderated regression analyses offered only weak support for the interaction of average satisfaction and average importance ratings beyond their main effects. The simpler, unweighted BASS is an acceptable assessment of evaluative body image. 相似文献
57.
A controlled-attention view of working-memory capacity. 总被引:18,自引:0,他引:18
M J Kane M K Bleckley A R Conway R W Engle 《Journal of experimental psychology. General》2001,130(2):169-183
In 2 experiments the authors examined whether individual differences in working-memory (WM) capacity are related to attentional control. Experiment 1 tested high- and low-WM-span (high-span and low-span) participants in a prosaccade task, in which a visual cue appeared in the same location as a subsequent to-be-identified target letter, and in an antisaccade task, in which a target appeared opposite the cued location. Span groups identified targets equally well in the prosaccade task, reflecting equivalence in automatic orienting. However, low-span participants were slower and less accurate than high-span participants in the antisaccade task, reflecting differences in attentional control. Experiment 2 measured eye movements across a long antisaccade session. Low-span participants made slower and more erroneous saccades than did high-span participants. In both experiments, low-span participants performed poorly when task switching from antisaccade to prosaccade blocks. The findings support a controlled-attention view of WM capacity. 相似文献
58.
Studies examining individual differences in working memory capacity have suggested that individuals with low working memory capacities demonstrate impaired performance on a variety of attention and memory tasks compared with individuals with high working memory capacities. This working memory limitation can be conceived of as arising from 2 components: a dynamic attention component (primary memory) and a probabilistic cue-dependent search component (secondary memory). This framework is used to examine previous individual differences studies of working memory capacity, and new evidence is examined on the basis of predictions of the framework to performance on immediate free recall. It is suggested that individual differences in working memory capacity are partially due to the ability to maintain information accessible in primary memory and the ability to search for information from secondary memory. 相似文献
59.
Lindsey Engle Richland Tsz-Kit Chan Robert G. Morrison Terry Kit-Fong Au 《Journal of experimental child psychology》2010,105(1-2):146-153
A cross-cultural comparison between U.S. and Hong Kong preschoolers examined factors responsible for young children’s analogical reasoning errors. On a scene analogy task, both groups had adequate prerequisite knowledge of the key relations, were the same age, and showed similar baseline performance, yet Chinese children outperformed U.S. children on more relationally complex problems. Children from both groups were highly susceptible to choosing a perceptual or semantic distractor during reasoning when one was present. Taken together, these similarities and differences suggest that (a) cultural differences can facilitate better knowledge representations by allowing more efficient processing of relationally complex problems and (b) inhibitory control is an important factor in explaining the development of children’s analogical reasoning. 相似文献
60.
Examined psychosocial factors related to prenatal and postnatal anxiety in 291 primiparous Mexican women giving birth in Los Angeles. Characteristics of health care providers preferred by more anxious and less anxious women were also assessed. Higher prenatal anxiety was associated with less desire for an active role during labor, lower assertiveness, higher pain expectation at delivery, lack of support from family members other than the husband, and preferences for health care providers who are female and Latino. All groups of women preferred health care providers who provided good medical explanations and who were knowledgeable, friendly, and sympathetic. Postnatal anxiety was significantly lower than prenatal anxiety. Negative attitudes toward the baby and number of complications during labor and delivery, however, were related to postnatal anxiety adjusted for prenatal anxiety. 相似文献