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171.
172.
A multilevel latent transition analysis (LTA) with a mixture IRT measurement model (MixIRTM) is described for investigating the effectiveness of an intervention. The addition of a MixIRTM to the multilevel LTA permits consideration of both potential heterogeneity in students’ response to instructional intervention as well as a methodology for assessing stage sequential change over time at both student and teacher levels. Results from an LTA–MixIRTM and multilevel LTA–MixIRTM were compared in the context of an educational intervention study. Both models were able to describe homogeneities in problem solving and transition patterns. However, ignoring a multilevel structure in LTA–MixIRTM led to different results in group membership assignment in empirical results. Results for the multilevel LTA–MixIRTM indicated that there were distinct individual differences in the different transition patterns. The students receiving the intervention treatment outscored their business as usual (i.e., control group) counterparts on the curriculum-based Fractions Computation test. In addition, 27.4 % of the students in the sample moved from the low ability student-level latent class to the high ability student-level latent class. Students were characterized differently depending on the teacher-level latent class. 相似文献
173.
Kit W. Cho 《Journal of Cognitive Psychology》2016,28(6):673-683
We demonstrate that the phonetic detail of an original speaker’s pronunciation for a word can be detected with a memory measure even when a participant listens to and then repeats that word aloud (production). At study, native English participants heard English words pronounced by a native speaker of American-English or by a Chinese national. For half of the words they listened. For the others, they produced it. In both recall and old/new recognition tests in Experiment 1, production improved performance relative to listening alone. Effects of accent were present only in recognition and only in interaction with production. In Experiment 2, a source-monitoring recognition test where participants identified whether the speaker of a word changed from study to test, effects of accent and production were additive indicating that hearing an unfamiliar accent increased memory irrespective of production. An exemplar account including both production- as well as perception-derived experience describes the outcome. 相似文献
174.
A Stroop task with separate color bar and color word stimuli was combined with an inhibition-of-return procedure to examine
whether visual attention modulates color word processing. In Experiment 1, the color bar was presented at the cued location
and the color word at the uncued location, or vice versa, with a 100- or 1,050-msec stimulus onset asynchrony (SOA) between
cue and Stroop stimuli. In Experiment 2, on Stroop trials, the color bar was presented at a central fixated location and the
color word at a cued or uncued location above or below the color bar. In both experiments, with a 100-msec SOA, the Stroop
effect was numerically larger when the color word was displayed at the cued location than when it was displayed at the uncued
location, but with the 1,050-msec SOA, this relation between Stroop effect magnitude and location was reversed. These results
provide evidence that processing of the color word in the Stroop task is modulated by the location to which visual attention
is directed. 相似文献
175.
Chooyon Cho Hangsuk Cho Kyunghee Cho Kyounggyu Choi Heejong Oh Chulyoung Bae 《Journal of Clinical Geropsychology》2001,7(1):79-89
The purpose of this study was to determine whether common geriatric conditions, family function, and nutritional problems have independent associations with functional dependence beyond the effect of cognitive impairment in patients with Alzheimer's disease. It was found that some common geriatric conditions affecting patients with Alzheimer's disease appear to have multiple and differential relationships with specific instrumental activities of daily living (IADLs) dependency. These results have implications for medical care. Preventing one condition may not be sufficient to prevent further IADL dependences because the conditions are independently related to individual outcome variables. Thus, multiple conditions may need to be managed concurrently if further functional dependence is to be expected. 相似文献
176.
Cho YS Lien MC Proctor RW 《Journal of experimental psychology. Human perception and performance》2006,32(4):826-839
Stroop dilution is the reduction of the Stroop effect in the presence of a neutral word. It has been attributed to competition for attention between the color word and neutral word, to competition between all stimuli in the visual field, and to perceptual interference. Five experiments tested these accounts. The critical manipulation was whether the color to be named was carried by the color word or the neutral word. Neutral words diluted the Stroop effect when they were the color carrier, but not when the color word was the color carrier. We argue that Stroop dilution is due to attentional competition between the color word and neutral word, with priority given to the color carrier. 相似文献
177.
The ameliorating effect of oroxylin A on scopolamine-induced memory impairment in mice 总被引:2,自引:0,他引:2
Kim DH Jeon SJ Son KH Jung JW Lee S Yoon BH Lee JJ Cho YW Cheong JH Ko KH Ryu JH 《Neurobiology of learning and memory》2007,87(4):536-546
Oroxylin A is a flavonoid and was originally isolated from the root of Scutellaria baicalensis Georgi., one of the most important medicinal herbs in traditional Chinese medicine. The aim of this study was to investigate the ameliorating effects of oroxylin A on memory impairment using the passive avoidance test, the Y-maze test, and the Morris water maze test in mice. Drug-induced amnesia was induced by administering scopolamine (1 mg/kg, i.p.) or diazepam (1 mg/kg, i.p.). Oroxylin A (5 mg/kg) significantly reversed cognitive impairments in mice by passive avoidance and the Y-maze testing (P<.05). Oroxylin A also improved escape latencies in training trials and increased swimming times and distances within the target zone of the Morris water maze (P<.05). Moreover, the ameliorating effects of oroxylin A were antagonized by both muscimol and diazepam (0.25 mg/kg, i.p., respectively), which are GABA(A) receptor agonists. Furthermore, oroxylin A (100 microM) was found to inhibit GABA-induced inward Cl(-) current in a single cortical neuron. These results suggest that oroxylin A may be useful for the treatment of cognitive impairments induced by cholinergic dysfunction via the GABAergic nervous system. 相似文献
178.
Lesion studies show that the intermediate medial hyperstriatum ventrale (IMHV), a forebrain visual association area in chicks, is involved in learning and memory for one-trial passive avoidance and imprinting. We examined the effects of IMHV lesions in a one-trial, nongustatory, sickness-conditioned learning task. This task is similar to passive avoidance and imprinting because all three tasks require the chick to remember visual cues in order to respond correctly. However, sickness-conditioned learning differs from imprinting and passive avoidance because it uses sickness as the aversive stimulus and there is a longer conditioned stimulus-unconditioned stimulus interval (30-min delay compared to seconds). Bilateral IMHV lesions given 24 h before training impaired the ability of the chicks to avoid a bead associated with sickness produced by lithium chloride injection, as did pretraining unilateral left or right IMHV lesions. Post-training IMHV lesions given 1 h after training did not impair avoidance of the test bead in the sickness-conditioned learning task. However, lesioned chicks showed generalized avoidance of all test beads. The pretraining lesion results are similar to those found in imprinting and passive avoidance learning; however, the effects of unilateral IMHV lesions differed. Post-training lesion effects are similar to those found in passive avoidance learning. We propose that both left and right IMHV are necessary for sickness-conditioned learning and that post-training IMHV lesions impair the ability of the chick to learn or remember the association between the color of the bead and the aversive consequences of LiCl injection. 相似文献
179.
Basil Khalifa Costas Derek Cahusac de Caux Cho Kwong Charlie Lam Ricky Lau Cuong Huu Hoang 《Reflective Practice》2017,18(4):463-473
This literature review highlights the benefits of participating in a doctoral writing group, with specific emphasis on how these learning communities foster reflective practice skills development. In particular, this review proposes that the process of continuous peer feedback and discussion benefits students by helping them verbalise their internal reflective thinking, fostering reflective practice skills development through various authentic learning experiences. Consequently, this review highlights the importance of establishing and supporting doctoral writing groups to further develop doctoral students’ personal epistemology, growth and professional practice. 相似文献
180.
Hyosun Kim Yang Seok Cho Motonori Yamaguchi Robert W. Proctor 《Attention, perception & psychophysics》2008,70(8):1540-1551
Three experiments tested whether the Stroop color-naming effect is a consequence of word recognition's being automatic or of the color word's capturing visual attention. In Experiment 1, a color bar was presented at fixation as the color carrier, with color and neutral words presented in locations above or below the color bar; Experiment 2 was similar, except that the color carrier could occur in one of the peripheral locations and the color word at fixation. The Stroop effect increased as display duration increased, and the Stroop dilution effect (a reduced Stroop effect when a neutral word is also present) was an approximately constant proportion of the Stroop effect at all display durations, regardless of whether the color bar or color word was at fixation. In Experiment 3, the interval between the onsets of the to-be-named color and the color word was manipulated. The Stroop effect decreased with increasing delay of the color word onset, but the absolute amount of Stroop dilution produced by the neutral word increased. This study's results imply that an attention shift from the color carrier to the color word is an important factor modulating the size of the Stroop effect. 相似文献