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161.
在阅读中, 读者既能加工当前注视的中央凹视觉区的信息, 也能从副中央凹视觉区提取信息并利用该信息预先加工下文词汇, 称为预加工或预视。它是熟练阅读的一个关键环节。对副中央凹信息的预加工涉及预视的空间范围和预视程度(即预视量和预视类型)。在拼音文字阅读的研究中, 关于预视范围与预视程度如何受中央凹加工负荷和副中央凹预加工负荷的调节存在争议, 一个主要的原因是拼音文字词长变异大, 在考察预视程度时难以克服预视范围的干扰。而中文词长变化小, 能有效分离预视范围与预视程度。利用中文优势, 采用眼动技术来考察:(1)副中央凹预加工负荷如何影响预视范围, (2)中央凹加工负荷如何影响预视范围与预视程度, (3)阅读能力与阅读效率如何调节预视范围与预视程度, 结果将有助于解决副中央凹预视研究中的理论争论, 为预测阅读能力与衡量阅读效率提供更多有效的眼动行为指标。 相似文献
162.
We know that reading involves coordination between textual characteristics and visual attention, but research linking eye movements during reading and comprehension assessed after reading is surprisingly limited, especially for reading long connected texts. We tested two competing possibilities: (a) the weak association hypothesis: Links between eye movements and comprehension are weak and short-lived, versus (b) the strong association hypothesis: The two are robustly linked, even after a delay. Using a predictive modeling approach, we trained regression models to predict comprehension scores from global eye movement features, using participant-level cross-validation to ensure that the models generalize across participants. We used data from three studies in which readers (Ns = 104, 130, 147) answered multiple-choice comprehension questions ~30 min after reading a 6,500-word text, or after reading up to eight 1,000-word texts. The models generated accurate predictions of participants' text comprehension scores (correlations between observed and predicted comprehension: 0.384, 0.362, 0.372, ps < .001), in line with the strong association hypothesis. We found that making more, but shorter fixations, consistently predicted comprehension across all studies. Furthermore, models trained on one study's data could successfully predict comprehension on the others, suggesting generalizability across studies. Collectively, these findings suggest that there is a robust link between eye movements and subsequent comprehension of a long connected text, thereby connecting theories of low-level eye movements with those of higher order text processing during reading. 相似文献
163.
An eye-tracking experiment examined whether prosodic cues can affect the interpretation of grammatical functions in the absence of clear morphological information. German listeners were presented with scenes depicting three potential referents while hearing temporarily ambiguous SVO and OVS sentences. While case marking on the first noun phrase (NP) was ambiguous, clear case marking on the second NP disambiguated sentences towards SVO or OVS. Listeners interpreted case-ambiguous NP1s more often as Subject, and thus expected an Object as upcoming argument, only when sentence beginnings carried an SVO-type intonation. This was revealed by more anticipatory eye movements to suitable Patients (Objects) than Agents (Subjects) in the visual scenes. No such preference was found when sentence beginnings had an OVS-type intonation. Prosodic cues were integrated rapidly enough to affect listeners' interpretation of grammatical function before disambiguating case information was available. We conclude that in addition to manipulating attachment ambiguities, prosody can influence the interpretation of constituent order ambiguities. 相似文献
164.
The present study investigated how anticipation of a target's appearance affects human attention to gaze cues provided by a schematic face. Subjects in a 'catch' group received a high number of 'catch' trials, in which no target stimulus appeared. Subjects in the control group did not receive any catch trials. As in previous studies, both groups showed a facilitation effect to the cued location during shorter stimulus onset asynchrony (SOA). In both groups, an analysis of eye movements confirmed that subjects' eyes remained on the fixation point, ruling out the possibility that the facilitation effect was due to shifting eye movements (saccades) as opposed to a shift in covert attention. But while the control group's response time (RT) decreased as SOA increased, the catch group's RT had a U-shaped pattern and the facilitation effect to the cued location was reversed at the longest SOA (1005 ms). These results suggest that subjects in the catch group disengaged their attention during long SOAs because they expected the trial to be a catch trial. This disengagement of attention during long SOAs results in a delay before attention could be re-focused to the previous location regardless of the cue validity ["IOR (inhibition of return)"-like-phenomenon]. Unlike the conventional IOR, we suggest that this "IOR"-like phenomenon caused by an unpredictive central gaze cue is likely to be mediated by an endogenous mechanism. 相似文献
165.
Three studies investigated how 24-month-olds and adults resolve temporary ambiguity in fluent speech when encountering prenominal adjectives potentially interpretable as nouns. Children were tested in a looking-while-listening procedure to monitor the time course of speech processing. In Experiment 1, the familiar and unfamiliar adjectives preceding familiar target nouns were accented or deaccented. Target word recognition was disrupted only when lexically ambiguous adjectives were accented like nouns. Experiment 2 measured the extent of interference experienced by children when interpreting prenominal words as nouns. In Experiment 3, adults used prosodic cues to identify the form class of adjective/noun homophones in string-identical sentences before the ambiguous words were fully spoken. Results show that children and adults use prosody in conjunction with lexical and distributional cues to ‘listen through’ prenominal adjectives, avoiding costly misinterpretation. 相似文献
166.
167.
Melissa Ann Stormont Sandra Covington Smith Timothy J. Lewis 《Journal of Behavioral Education》2007,16(3):280-290
Although research has clearly supported the use of school-wide positive behavior support (PBS) in elementary school settings,
data-based research has not been conducted to support program-wide PBS in early childhood settings. The purpose of this study
was to specifically support teachers’ use of universal features of program-wide PBS and to determine whether increases in
the use of positive teacher behaviors, including precorrection and praise, were functionally related to decreases in students’
problem behavior. Using a multiple baseline design, three teachers were introduced to an intervention to increase their use
of precorrections and specific behavioral praise statements. A relationship was established between the three teachers’ use
of key features of program-wide PBS and the reduction of students’ problem behavior in a small group setting. However, findings
should be viewed as tentative and future research should explore the relative influence of each of the intervention components
on preschool students’ behavior. 相似文献
168.
Geraint Davies 《International Journal of Children's Spirituality》2007,12(3):307-324
A questionnaire to assess views about spiritual development was completed by 112 of the 174 head teachers of church primary schools in Wales. The findings indicated that despite the seemingly ambiguous nature of the term ‘spiritual development’, head teachers had clear views about its meaning. While most head teachers emphasised the need for pupils to engage in their own personal spiritual search, their views differed in the extent to which they felt that promoting spiritual development meant encouraging pupils to adopt Christian beliefs. While the age and sex of head teachers was found to have no significant impact on their views; and the location and category of the school for which head teachers were responsible had only a limited impact on their view, the language of the school and the religiosity of the head teacher had a considerable impact on views regarding these matters. 相似文献
169.
通过眼动数据的分析,探讨人脸图形识别的取样特征。实验为2×2的被试内设计,自变量为显示条件(良好显示和不良显示)和显示方式(旋转显示和非旋转显示)。实验的因变量有反应时、总注视时间、注视比率、首视点注视时间、注视点数量、扫视总距离、扫视平均距离、正确率等8个指标。被试为12名大学生,刺激材料为10幅中国人脸部图形,主要实验设备是一台Eyelinkll型服动仪。结果发现,显示条件和显示方式对人脸图形识别绩效的影响显著;随着作业难度加大,被试图形识别的首视点注视时间显著增加;人脸图形识别中,显示条件对信息取样注视比率影响显著.而显示方式显著影响信息取样点数量. 相似文献
170.
The goal of this study was to examine incidental and intentional spatial sequence learning during middle childhood and adolescence. We tested four age groups (8-10 years, 11-13 years, 14-17 years, and young adults [18+ years]) on a serial reaction time task and used manual and oculomotor measures to examine incidental sequence learning. Participants were also administered a trial block in which they were explicitly instructed to learn a sequence. Replicating our previous study with adults, oculomotor anticipations and response times showed learning effects similar to those in the manual modality. There were few age-related differences in the sequence learning indexes during incidental learning, but intentional learning yielded differences on all indexes. Results indicate that the search for regularities and the ability to learn a sequence rapidly under incidental conditions are mature by 8 to 10 years of age. In contrast, the ability to learn a sequence intentionally, which requires cognitive resources and strategies, continues to develop through adolescence. 相似文献