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211.
研究探讨汉语读者选择眼跳目标时, 中央凹注视词的加工负荷是否影响副中央凹获取信息量, 进而调节随后的眼跳长度。采用眼动追踪技术, 操纵了中央凹注视词的词频(高频、低频)和副中央凹词的笔画数(多笔画、少笔画)。结果发现:从中央凹词到副中央凹少笔画词的眼跳长度显著地长于到多笔画词的, 且这种笔画数效应并不受中央凹加工负荷的调节; 从高频中央凹词到副中央凹词的眼跳长度显著地长于低频词的。在本实验条件下结果提示:中央凹加工负荷在眼跳目标选择中的作用不是通过调节副中央凹获取信息量的多少来实现的。 相似文献
212.
采用眼动追踪技术,考察重复阅读对母语为汉语的大学生阅读英语语篇的作用。研究采用2(目标词词频:高频、低频)×5(阅读遍数:1遍、2遍、3遍、4遍、5遍)的两因素被试内设计。结果发现:(1)随着阅读遍数的增加,读者的阅读理解正确率呈上升趋势,总阅读时间、注视次数、回视次数和平均注视时间显著降低,平均眼跳幅度显著增加;(2)阅读遍数与目标词词频的交互作用显著,表现为重复阅读对低频词识别的促进作用要显著大于对高频词识别的促进作用。研究表明重复阅读能够有效提高大学生对英语语篇的阅读效率。 相似文献
213.
通过Surface Pro触屏电脑呈现知觉匹配任务,记录儿童的主动反应,探查了83名3-5岁学前儿童汉字方向(倒置与镜像)敏感性的早期发展及其与汉字阅读能力的关系。结果发现,4岁儿童可以很好地区分正反方向的汉字,表现出汉字倒置方向的敏感性。但是,各年龄组儿童还未对镜像汉字表现出敏感性。学前儿童对汉字两种方向的认识表现出不同的发展轨迹。学前儿童的汉字倒置方向敏感性与其汉字阅读能力显著相关。 相似文献
214.
Three experiments demonstrate gender congruency effects (i.e., naming times of a picture are faster when the name of the target
picture and a distractor noun are gender congruent) in Czech. In the first experiment, subjects named the pictures by producing
gender-marked demonstrative pronouns and a noun. In the second and third experiments, subjects produced a gender-marked numeral
(marked with a suffix) plus a noun. Two types of such suffixes exist in Czech. Some numerals vary in nominative singular with
gender, others do not. The results show significant gender congruency effects in all experiments. They suggest that gender
congruency effects can be obtained not only with free, but also with bound morphemes. In the second and third experiment the
effect only emerged when the suffix was gender-marked (as opposed to gender-invariant), supporting the view that the gender
congruency effect is due to competition at the level of phonological forms rather than at the grammatical level. 相似文献
215.
It has been a matter of debate whether the specifically human capacity to process syntactic information draws on attentional resources or is automatic. To address this issue, we recorded neurophysiological indicators of syntactic processing to spoken sentences while subjects were distracted to different degrees from language processing. Subjects were either passively distracted, by watching a silent video film, or their attention was actively streamed away from the language input by performing a demanding acoustic signal detection task. An early index of syntactic violations, the syntactic Mismatch Negativity (sMMN), distinguished between grammatical and ungrammatical speech even under strongest distraction. The magnitude of the early sMMN (at <150ms) was unaffected by attention load of the distraction task. The independence of the early syntactic brain response of attentional distraction provides neurophysiological evidence for the automaticity of syntax and for its autonomy from other attention-demanding processes, including acoustic stimulus discrimination. The first attentional modulation of syntactic brain responses became manifest at a later stage, at approximately 200ms, thus demonstrating the narrowness of the early time window of syntactic autonomy. We discuss these results in the light of modular and interactive theories of cognitive processing and draw inferences on the automaticity of both the cognitive MMN response and certain grammar processes in general. 相似文献
216.
Apraxia of Speech (AOS) is an impairment of motor programming. However, the exact nature of this deficit remains unclear. The present study examined motor programming in AOS in the context of a recent two-stage model [Klapp, S. T. (1995). Motor response programming during simple and choice reaction time: The role of practice. Journal of Experimental Psychology: Human Perception and Performance, 21, 1015–1027; Klapp, S. T. (2003). Reaction time analysis of two types of motor preparation for speech articulation: Action as a sequence of chunks. Journal of Motor Behavior, 35, 135–150] that proposes a preprogramming stage (INT) and a process that assigns serial order to multiple programs in a sequence (SEQ). The main hypothesis was that AOS involves a process-specific deficit in the INT (preprogramming) stage of processing, rather than in the on-line serial ordering (SEQ) and initiation of movement. In addition, we tested the hypothesis that AOS involves a central (i.e., modality-general) motor programming deficit. We used a reaction time paradigm that provides two dependent measures: study time (the amount of time for participants to ready a motor response; INT), and reaction time (time to initiate movement; SEQ). Two experiments were conducted to examine INT and SEQ in AOS: Experiment 1 involved finger movements, Experiment 2 involved speech movements analogous to the finger movements. Results showed longer preprogramming time for patients with AOS but normal sequencing and initiation times, relative to controls. Together, the findings are consistent with the hypothesis of a process-specific, but central (modality-independent) deficit in AOS; alternative explanations are also discussed. 相似文献
217.
In this exploratory study, we investigated whether or not people who stutter (PWS) show motor practice and learning changes similar to those of people who do not stutter (PNS). To this end, five PWS and five PNS repeated a set of non-words at two different rates (normal and fast) across three test sessions (T1, T2 on the same day and T3 on a separate day, at least 1 week apart). The results indicated that PWS and PNS may resemble each other on a number of performance variables (such as movement amplitude and duration), but they differ in terms of practice and learning on variables that relate to movement stability and strength of coordination patterns. These findings are interpreted in support of recent claims about speech motor skill limitations in PWS.
Educational objectives: The reader will be able to: (1) define oral articulatory changes associated with motor practice and learning and their measurement; (2) summarize findings from previous studies examining motor practice and learning in PWS; and (3) discuss hypotheses that could account for the present findings that suggest PWS and PNS differ in their speech motor learning abilities. 相似文献
218.
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220.
This experiment looked at elicited tip-of-the-tongue (TOT) states to test the hypothesis that making an error once makes people more likely to make it again, via an implicit learning mechanism. We present a methodology that allows us to determine whether error reoccurrences are due to error learning or to the fact that some items tend to pose repeated difficulty to participants. We elicited TOTs by asking participants to supply the word that fitted a given definition. Each time participants indicated that they were experiencing a TOT they were randomly assigned a delay of either 10 or 30 seconds, during which they were asked to keep trying to retrieve the item. After the delay, the correct answer was supplied. We argue that this longer delay in a TOT state amounts to greater implicit learning of the erroneous state. A period of 48 hours later, participants returned to the laboratory and were asked to supply the words for the same definitions as those seen on Day 1. Results showed that TOTs were almost twice as likely to reoccur on words that had elicited a TOT and been followed by a long delay than on those that had been followed by a short delay. 相似文献