编码方式对陌生字形记忆的影响

采用学习-再认范式,分别以韩字、英文假词为实验材料,考察了编码方式对陌生字形记忆的影响。在学习阶段,通过随机呈现整体和部分探测刺激,引导被试分别以整体编码和部分编码方式学习陌生字形,并在学习结束后一小时进行再认记忆测试。结果发现,无论以韩字还是以英文假词为材料,部分编码条件的记忆成绩均显著好于整体编码。该结果说明部分编码相比于整体编码能促进陌生字形记忆,并且这种优势效应具有跨文字系统的一致性。     

Magnifying effects on visual word recognition: a dynamic display for internet-based experiments

A visual presentation procedure is introduced that presents target words followed by a dynamic mask until recognition. This form of stimulus degradation prolongs the word recognition process. Differences in word recognition latencies—which are usually quite small—are magnified, and thus can be more easily observed. The results of two experiments on the Internet with a total of 141 participants establish the task’s ability to magnify differences in word recognition latencies stemming from word familiarity (Experiment 1) and word prototypicality (Experiment 2). Both factors interact with stimulus degradation, but at different presentation intervals; these results are discussed as evidence for comparing models of word recognition. The new procedure can be used for assessing individual differences, such as implicit motives and self-focused attention. Further applications are discussed.     

Effects of syntactic structure in the memory of concrete and abstract Chinese sentences

Smith (1981) found that concrete English sentences were better recognized than abstract sentences and that this concreteness effect was potent only when the concrete sentence was also affirmative but the effect switched to an opposite end when the concrete sentence was negative. These results were partially replicated in Experiment 1 by using materials from a very different language (i.e., Chinese): concrete-affirmative sentences were better remembered than concrete-negative and abstract sentences, but no reliable difference was found between the latter two types. In Experiment 2, the task was modified by using a visual presentation instead of an oral one as in Experiment 1. Both concrete-affirmative and concrete-negative sentences were better memorized then abstract ones in Experiment 2. The findings in the two experiments are explained by a combination of the dual-coding model and Marschark's (1985) item-specific and relational processing. The differential effects of experience with different language systems on processing verbal materials in memory are also discussed.This research was partially supported by a research grant from the Research Grants Council of Hong Kong to Hsuan-Chih Chen. Connie Suk-Han Ho was supported on an Overseas Research Studentship from the University of Oxford of United Kingdom during the preparation of this article.     

Recognition of concrete and abstract pictures as a function of poststimulus interval

This study examined picture recognition of concrete common objects and abstract random shapes under two presentation conditions: The durations of the unfilled intervals (off-time duration) that followed the presentation of the pictures were varied either randomly or in blocks. The major findings were: recognition of the concrete pictures was better than recognition of random shapes, the off-time duration did not influence recognition of either type of picture under the random presentation condition, and under the block presentation condition, recognition of the concrete pictures increased as a function of off-time duration, whereas the effect of off-time duration was not found for the abstract shapes. The results were interpreted as suggesting that a longer off-time duration is necessary for abstract shapes so that stimulus differentiation, verbal encoding, visual analogizing, and rehearsing may be utilized in processing.     

Encoding instructions and stimulus presentation in local environmental context-dependent memory studies

Murnane and Phelps (1993) recommend word pair presentations in local environmental context (EC) studies to prevent associations being formed between successively presented items and their ECs and a consequent reduction in the EC effect. Two experiments were conducted to assess the veracity of this assumption. In Experiment 1, participants memorised single words or word pairs, or categorised them as natural or man made. Their free recall protocols were examined to assess any associations established between successively presented items. Fewest associations were observed when the item-specific encoding task (i.e., natural or man made categorisation of word referents) was applied to single words. These findings were examined further in Experiment 2, where the influence of encoding instructions and stimulus presentation on local EC dependent recognition memory was examined. Consistent with recognition dual-process signal detection model predictions and findings (e.g., Macken, 2002; Parks & Yonelinas, 2008), recollection sensitivity, but not familiarity sensitivity, was found to be local EC dependent. However, local EC dependent recognition was observed only after item-specific encoding instructions, irrespective of stimulus presentation. These findings and the existing literature suggest that the use of single word presentations and item-specific encoding enhances local EC dependent recognition.     

Recognition of Concrete and abstract Pictures as a Function of Poststimulus Interval

This study examined picture recognition of concrete common objects and abstract random shapes under two presentation conditions: The durations of the unfilled intervals (off-time duration) that followed the presentation of the pictures were varied either randomly or in blocks. The major findings were: (a) recognition of the concrete pictures was better than recognition of random shapes, (b) the off-time duration did not influence recognition of either type of picture under the random presentation condition, and (c) under the block presentation condition, recognition of the concrete pictures increased as a function of off-time duration, whereas the effect of off-time duration was not found for the abstract shapes. The results were interpreted as suggesting that a longer off-time duration is necessary for abstract shapes so that stimulus differentiation, verbal encoding, visual analogizing, and rehearsing may be utilized in processing.     

汉字位置加工和词边界效应的认知机制

在中文阅读中, 为了进行词汇识别, 需要对汉字在词中的相对顺序进行加工, 即汉字位置加工。汉字位置加工是词汇识别和阅读理解的重要环节。如果汉字位置未得到加工, 可转置词将很难被区分。可转置词由相同汉字构成, 但每个汉字所处位置不同。以往研究发现, 词内汉字位置加工是比较灵活的; 而且词边界信息会影响汉字位置的加工, 即汉字位置加工存在词边界效应。该效应产生的原因及影响因素有哪些?本项目采用眼动追踪技术, 在自然阅读中系统探讨如下三个问题:(1)词的首/尾汉字如何调节汉字位置加工过程; (2)嵌套词和歧义词边界如何影响汉字位置加工; (3)语境合理性和预测性如何影响汉字位置加工的词边界效应。本项目将为首个中文汉字位置加工模型的建立提供数据支持和科学基础, 推进现有的中文词汇识别和词切分模型的进一步完善, 并为词汇的高效率教授与学习提供科学指导。     

词素位置概率在中文阅读中的作用：词汇判断和眼动研究

中文词切分的认知机制一直是心理语言学关注的焦点问题之一,研究发现中文读者可使用词素位置概率等语言学线索帮助词切分,而首、尾词素位置概率的重要程度以往研究观点并不一致。本研究通过词汇判断和眼动实验,考察中文读者对首、尾词素位置概率的利用情况。实验1a和1b采用词汇判断任务,考察在不同词频条件下词首与词尾词素位置概率对词汇识别的影响。在错误率和反应时指标上,高频词条件下词首与词尾词素位置概率效应不显著;低频词条件下词首词素位置概率效应显著,词尾词素位置概率效应不显著。实验2a和2b采用句子阅读任务,考察在自然阅读情境中被试对词素位置概率的运用。在凝视时间、回视路径时间和总注视时间指标上,低频词条件下词首词素位置概率效应显著,词尾词素位置概率效应不显著。高频词条件下词首与词尾词素位置概率效应均不显著。词汇判断和眼动证据共同表明,词素位置概率信息是中文读者重要的语言词切分线索,且与词尾词素位置概率相比,词首词素位置概率在词汇切分与识别过程中发挥的作用更大。同时,词素位置概率线索的运用会受到词频的影响,研究结果支持复合词加工的混合通达表征模型。     

中文阅读中预视阶段和注视阶段内词汇视觉编码的过程特点:来自消失文本的证据

研究采用消失文本范式考察中文阅读中双字词汇视觉信息编码的过程特点。实验一操控词n+1上字词消失方式及其延迟时间,结果发现,注视词n时,词n+1上不同位置的汉字及时消失(延迟时间为0 ms)都影响总阅读时间,且影响程度与消失汉字的具体位置与消失汉字的数量有关;延迟时间为60 ms时,词n+1上的左侧字消失不再影响总阅读时间,而词n+1上的右侧字消失仍会影响总阅读时间。实验二操控词n上字词消失方式及其延迟时间,结果发现,注视词n时,词n上不同位置的汉字及时消失对总阅读时间的影响程度完全一致,说明词n上汉字视觉编码不受消失汉字的具体位置与消失汉字的数量的调节;延迟时间为60 ms时,各消失条件都不影响总阅读时间,说明词n上不同汉字的视觉编码同时完成。基于两项实验结果可得出,在预视阶段内中文读者以汉字单元编码内双字词汇的视觉信息,在注视阶段内以整词为单元编码双字词汇的视觉信息。     

非熟练的韩国汉语学习者合成词加工中词优效应的特点

词优效应是语言学习中的一个普遍现象。关于英语母语者和汉语母语者的研究都发现了词优效应。本研究关注非熟练的韩国汉语学习者的中文词汇加工中的词优效应,共两个实验:实验1考察汉字的频率对非熟练的韩国汉语学习者中文词汇加工中词优效应的影响;实验2考察汉字和词之间的语义关系(词汇的结构)对非熟练的韩国汉语学习者中文词汇加工中词优效应的影响。实验1的结果发现,字频并未对非熟练的韩国汉语学习者中文词汇加工中的词优效应产生影响,非熟练的韩国汉语学习者在高频字和低频字的识别中都出现了词优效应,且词优效应的大小没有显著差异。这说明非熟练的韩国汉语学习者在高、低频字的识别中都依赖于自上而下的词汇水平的激活。实验2的结果发现,汉字和词之间的语义关系(词汇结构)影响词优效应,相对于并列结构的词汇加工,在偏正结构的词语加工中更容易出现词优效应。这个结果表明词汇的结构通过影响词水平和字水平之间的交互激活,进而影响中文词汇加工中的词优效应。     

Modality effect in false recognition: evidence from Chinese characters

Using the Deese/Roediger‐McDermott (DRM) false memory method, Smith and Hunt ( 1998 ) first reported the modality effect on false memory and showed that false recall from DRM lists was lower following visual study than following auditory study, which led to numerous studies on the mechanism of modality effect on false memory and provided many competing explanations. In the present experiment, the authors tested the modality effect in false recognition by using a blocked presentation condition and a random presentation condition. The present experiment found a modality effect different from the results of the previous research; namely, false recognition was shown to be greater following visual study than following auditory study, especially in the blocked presentation condition rather than in the random presentation condition. The authors argued that this reversed modality effect may be due to different encoding and processing characteristics between Chinese characters and English words. Compared with English words, visual graphemes of critical lures in Chinese lists are likely to be activated and encoded in participants' minds, thus it is more difficult for participants to discriminate later inner graphemes from those items presented in visual modality. Hence visual presentation could lead to more false recognition than auditory presentation in Chinese lists. The results in the present experiment demonstrated that semantic activation occurring during the encoding and retrieve phases played an important role in modality effect in false recognition, and our findings might be explained by the activation‐monitoring account.     

Interactive activation in visual word recognition: constraints imposed by the joint effects of spatial attention and semantics

Two lexical-decision experiments investigated the effects of semantic priming and stimulus intensity when target location varied and was cued by an abrupt onset. In Experiment 1, the spatial cue was a good predictor of target location, and in Experiment 2 it was not. The results indicate that word recognition processes were postponed until spatial attention was focused on the target and that whether attention further affected word recognition depended on cue validity. The joint effects of cue validity and priming interacted when cue validity was high but were additive when cue validity was low. The joint effects of stimulus intensity and semantic priming also varied according to cue validity (i.e., interactive when high and additive when low). The results are discussed in terms of their implications for visual word recognition, the distinction between exogenous and endogenous spatial attention, and how attention is affected by visual word recognition processes.     

Recognition intent and visual word recognition

This study adopted a change detection task to investigate whether and how recognition intent affects the construction of orthographic representation in visual word recognition. Chinese readers (Experiment 1-1) and nonreaders (Experiment 1-2) detected color changes in radical components of Chinese characters. Explicit recognition demand was imposed in Experiment 2 by an additional recognition task. When the recognition was implicit, a bias favoring the radical location informative of character identity was found in Chinese readers (Experiment 1-1), but not nonreaders (Experiment 1-2). With explicit recognition demands, the effect of radical location interacted with radical function and word frequency (Experiment 2). An estimate of identification performance under implicit recognition was derived in Experiment 3. These findings reflect the joint influence of recognition intent and orthographic regularity in shaping readers’ orthographic representation. The implication for the role of visual attention in word recognition was also discussed.     

Interactions between presentation modality and encoding task in frequency judgements

In two experiments, presentation modality of a list of items and encoding task were varied, and subjects judged the frequency with which certain words had been presented in the list. In Experiment 1, auditory presentation led to higher judgements of frequency than did visual presentation when subjects counted the consonants in the words but not when they rated imageability or when they kept a running count of the number of presentations of each word. In Experiment 2, encoding questions about the rhyme or spelling patterns of target words produced opposite effects for auditory and visual items. The results are interpreted as indicating that cross-modal translation during encoding produces a bias towards higher-frequency judgements and may also produce better frequency discrimination.     

On the role of competing word units in visual word recognition: the neighborhood frequency effect

Current models of word recognition generally assume that word units orthographically similar to a stimulus word are involved in the visual recognition of this word. We refer to this set of orthographically similar words as an orthographic neighborhood. Two experiments are presented that investigate the ways in which the composition of this neighborhood can affect word recognition. The data indicate that the presence in the neighborhood of at least one unit of higher frequency than the stimulus word itself results in interference in stimulus word processing. Lexical decision latencies (Experiment 1) and gaze durations (Experiment 2) to words with one neighbor of higher frequency were significantly longer than to words without a more frequent neighbor. This neighborhood frequency effect is discussed in terms of the different types of candidate selection process postulated by contemporary models of visual word recognition.     

Visual laterality patterns for pure- versus mixed-list presentation

In Experiment 1, an overall left visual field advantage for nonverbal form recognition was found in a pure list of forms, but an overall right visual field form recognition advantage was found when the form trials were randomly intermixed with word recognition trials. Form complexity also influenced the form recognition laterality pattern, but the complexity effects were independent of (i.e., additive with) those produced by randomly mixing forms with words. Experiment 2 found that the mixed-list laterality pattern was unchanged by a pretrial cue indicating whether a word or form would follow. Experiments 3 and 4 demonstrated that holding two nouns in memory on each trial in a pure list of forms has much the same effect on laterality pattern as mixing forms with words but that the combined effect of these two variables is no larger than the effect of either variable alone. The entire pattern of results suggests that (a) laterality patterns are caused by the interaction of several factors, (b) the effects of random mixing and concurrent verbal memory are both caused by selective left-hemisphere activation, and (c) the form-complexity effects are caused by some other mechanism--perhaps subtle difference in stimulus codability.     

Influence of imaging ability on word transformation

In the present study, we examined whether individual differences in imaging ability affect visual word recognition. Poor and vivid imagers performed a naming task that involved nonreversed (e.g., JUMP) and reversed (e.g., PMUJ) words (Experiment 1). Poor and vivid imagers were also tested on a naming task that was controlled for verbal ability; all the words were reversed and presentation time was varied (Experiment 2). In both experiments, imaging ability interacted with task difficulty, suggesting that individual differences in imaging ability affect visual word recognition. Specifically, the present data suggest that poor imagers may be less efficient than vivid imagers at processing words analytically. The data are interpreted within a limited-capacity, hybrid, word recognition model, in which words can be processed as either word-level or letter-level codes.     

Visual and phonological pathways to the lexicon: Evidence from Chinese readers

In this study, we investigated the role of visual and phonological information in lexical access of Chinese characters. Homophonic English words have been the main source of stimuli for word recognition research. However, since these stimuli also often look alike, visual and phonological information may be confounded in reported experiments. In contrast, many homophonic Chinese characters are visually distinct. In addition, visually similar characters often have very different pronunciations. These characteristics allow a more controlled investigation of the roles of visual and phonological information in activation of meaning. In the present study, two types of Chinese characters were used in a semantic categorization paradigm: integrated characters, which contain strokes that are not separable; and compound characters, which contain at least two clearly identifiable components. The results show that the recognition of a Chinese integrated character depends primarily on visual information, whereas the recognition of a Chinese compound character relies on visual, phonological, and semantic information. It is concluded that visual information plays a greater role in Chinese character recognition than has previously been documented.     

Temporal invariance for picture-word translation: Evidence from drawing-writing and naming-reading tasks

In two experiments, picture-word processing was investigated using graphic (drawing-writing) and verbal (naming-reading) production tasks. In both experiments, the subjects drew a picture or wrote a word upon presentation of a picture or a word stimulus. Additionally, the subjects in Experiment 2 named a picture or read a word stimulus. Production onset latency was assessed. In both experiments, drawing production was initiated more slowly than was writing production. In Experiment 2, graphic production was initiated more slowly than was verbal production. Equivalent latency increases were found for cross-modality trials (e.g., drawing a picture given a word stimulus) relative to within-modality trials (e.g., drawing a picture given a picture stimulus), independent of stimulus modality (word or picture), production modality (word or picture), or task (graphic or verbal production). These results strongly support a mathematical model which incorporates temporal invariance for pictures and words concerning encoding, cross-modality transfer, and retrieval.     

The gating paradigm: Effects of presentation format on spoken word recognition by children and adults

This study focused on the impact of stimulus presentation format in the gating paradigm with age. Two presentation formats were employed—the standard, successive format and a duration-blocked one, in which gates from word onset were blocked by duration (i.e., gates for the same word were not temporally adjacent). In Experiment 1, the effect of presentation format on adults’ recognition was assessed as a function of response format (written vs. oral). In Experiment 2, the effect of presentation format on kindergarteners’, first graders’, and adults’ recognition was assessed with an oral response format only. Performance was typically poorer for the successive format than for the duration-blocked one. The role of response perseveration and negative feedback in producing this effect is considered, as is the effect of word frequency and cohort size on recognition. Although the successive format yields a conservative picture of recognition, presentation format did not have a markedly different effect across the three age levels studied. Thus, the gating paradigm would seem to be an appropriate one for making developmental comparisons of spoken word recognition.