不同语音知觉训练方式对汉语儿童和成人英语语音产出的作用

通过前测-训练-后测的实验程序,首先让22名五年级小学生和29名大学一年级学生分别在纯听或视听训练条件下学习知觉语音/s/和/θ/,然后对训练后他们产出语音/s/和/θ/的效果进行比较,以此来探讨不同语音知觉训练方式对儿童和成人语音产出的迁移作用.结果发现:(1)对于儿童来说,接受视听训练的被试在产出语音/s/和/θ/的准确性等级上的提高显著高于纯听训练被试;(2)对于大学生来说,接受两种训练的被试在产出/s/和/θ/的准确性等级上的提高率没有显著差异.以上结果表明,视听训练方式对语音产出的促进作用在儿童身上更加明显,早期的视听双通道语音知觉训练非常重要.     

汉语母语者视听双通道言语知觉的特点及发展研究

以30名小学二年级学生2、4名小学五年级学生和29名大学一年级学生为被试,运用McGurk效应研究范式对汉语母语者视听双通道言语知觉的表现特点、发展趋势等问题进行了探讨,三个年龄阶段被试均接受纯听和视听两种条件下的测查,被试的任务是出声报告自己听到的刺激。结果发现:(1)汉语为母语的二年级小学生、五年级小学生和大学生在自然听力环境下的单音节加工中都受到视觉线索的影响,表现出了McGurk效应;(2)二年级小学生、五年级小学生和大学生受视觉言语影响的程度,也就是McGurk效应的强度没有显著差异,没有表现出类似英语母语者的发展趋势。该结果支持了McGurk效应"普遍存在"的假说。     

汉语母语者视听言语知觉发展趋势研究

6~12岁儿童、13~18岁青少年和20~30岁成人被试各30名,运用McGurk效应研究范式对汉语母语者视听言语知觉的发展趋势进行探讨。所有被试需要接受纯听和视听两种条件下的测试,其任务是出声报告自己听到的刺激。结果发现：（1）三个年龄阶段汉语母语者被试在安静听力环境下的单音节加工中都受到了视觉线索的影响,表现出了McGurk效应;（2）三个年龄阶段汉语母语者被试McGurk效应的强度存在显著差异,其受视觉言语影响的程度表现出随年龄增长而增强的发展趋势;（3）13岁以后汉语被试在视听一致下对视觉线索的依赖没有显著增强,但是在视听冲突下视觉言语的影响仍然在逐渐增强。     

任务情境和证据信息对青少年贝叶斯推理的影响研究

采用生活情境测查任务和经典测查任务探讨了任务情境对青少年贝叶斯推理的影响,以及生活情境测查任务中不同证据信息对青少年贝叶斯判断的影响作用.结果表明:(1)在生活情境测查任务中,从小学六年级到大学二年级,被试的贝叶斯推理能力稳步缓慢提升(相邻的两个被试组之间差异不显著,而不相邻的两个被试组之间差异更容易达到显著水平),发展没有出现加速期,而经典测查任务情境下没有表现出年龄差异;(2)贝叶斯推理作为条件概率的判断不仅受任务情境的影响,而且同一任务情境中不同证据信息也会影响贝叶斯判断.当证据信息与先验信念一致时,被试可以充分利用线索进行推理.     

非母语语音短期学习的年龄效应

采用短期人工训练的范式,选取没有任何朝鲜语经验的二年级儿童、五年级儿童和大学生为被试,以一对朝鲜语语音为材料,探讨非母语语音学习的年龄效应。被试分别在学习前和每天学习后完成语音分辨测查。结果发现:(1)汉语被试辨别朝鲜语紧音/k^*/和松音/k/时存在困难;(2)在学习前,大学生的语音辨别正确率最高,五年级儿童次之,二年级儿童最低;(3)学习后,二年级儿童辨别成绩的提高量高于五年级儿童和大学生。该结果支持了学习非母语语音的年龄越小,学习效果越好、学习速度更快的假设。     

基于视听双通道的音乐情绪加工机制及情绪类型和音乐经验的影响

为了探讨视听双通道下的音乐情绪加工机制及音乐情绪类型和音乐训练背景对加工机制的影响，本研究采用表达开心和悲伤的音乐表演视频为材料，比较音乐组被试和非音乐组被试在单听觉通道、单视觉通道和视听双通道三种情境下的情绪评定速度、正确率和强度。结果发现：1）视听双通道与单视觉通道差异显著，与单听觉通道差异不显著。2）非音乐组被试对悲伤的评定正确率高于音乐组被试，对开心的评定正确率低于音乐组被试。说明音乐情绪加工的视听双通道整合优势仅相对单视觉通道存在；非音乐组被试对视觉通道情绪信息的变化更敏感，音乐组被试更依赖音乐经验；可在音乐表演时加入协调的视觉通道情绪信息帮助没有音乐训练经验的听赏者。     

小学五年级学生英语阅读知觉广度的眼动研究

使用Eyelink2000型眼动仪,采用经典的呈现随眼动变化技术,对24名被试在不同窗口条件下英文阅读的眼动指标进行记录和分析,以考察小学五年级学生英语阅读的知觉广度。研究结果表明:小学五年级学生英语阅读的知觉广度的右侧范围是注视点右侧5-8个字符空间。     

中国1～4年级小学生视知觉发展研究

该研究对1132名来自中国不同地区的1~4年级小学生施测视知觉发展测验,探究了小学生视动整合能力和去动作的视知觉的发展特点。研究结果表明,1~4年级小学生视知觉随着年级的升高而增强,视动整合能力和去动作的视知觉均从二年级开始呈现发展态势。一到四年级视动整合能力与去动作视知觉能力发展出现差异。视动整合能力在这一阶段整体高于去动作视知觉能力,但去动作视知觉能力发展速率要快于视动整合能力。小学生视知觉能力的发展遵循了由具体到抽象,由动作到符号的发展规律。     

噪声下自闭症儿童视听双通道言语知觉特征

研究噪声环境中自闭症儿童单通道和视听双通道言语知觉特征及发展趋势。结果发现,自闭症儿童在纯听、视听一致下言语辨识率显著低于普通儿童;自闭症儿童在视听一致下的视觉增益和视听不一致下的McGurk效应强度显著低于普通儿童;纯听和视听一致下13～16岁儿童言语辨识率显著高于6～12岁儿童,但是McGurk效应强度差异并不显著。结果表明,噪声环境中自闭症儿童的单通道和视听言语知觉能力不足,其视听整合能力与普通儿童存在显著差异。     

现代舞训练与弦乐训练对脑灰质体积的差异影响

目前舞蹈与音乐两种训练对脑灰质结构影响的差异尚不明确。本研究利用基于体素的形态学分析方法(voxel-based morphometry, VBM), 比较现代舞训练被试、弦乐训练被试与对照组被试的脑结构磁共振数据。结果表明现代舞训练组在涉及感觉运动控制的皮层、皮层下结构及小脑多个区域出现灰质体积的显著增加与减少; 弦乐训练组则在与音乐训练直接相关的听-动-读皮层出现灰质体积的显著增加。这一发现提示现代舞训练可能系统性地影响广泛脑区的灰质结构, 弦乐训练可能局部地改变了具体功能脑区的灰质结构, 两种训练对脑灰质结构的影响模式存在差异。     

Effects of time of day and medium of presentation on immediate recall of violent and non-violent news

A sample of 103 subjects from a technical training college were randomly assigned to nine groups and presented with a sequence of violent and non-violent news stories either audiovisually (via television), in audio-only, or in print at three different times of day (morning—9.30 am, early afternoon—1.30 pm, and later afternoon—5.30 pm). Subjects were tested for immediate cued recall of story content immediately after presentation. There were significant main effects of presentation modality, time of day and news content. Memory for news was best from print and worst from the audiovisual presentation. Memory performance was best in the morning and worst in the evening. Violent news was recalled better than non-violent news in all media and at all times of day. There were also some interactions. Recall of violent news presented in audiovisual and audio-only modalities deteriorated more from morning to afternoon than did non-violent news recall. Non-violent news recall from these two media declined more rapidly in the second half of the day. With print, recall of both violent and non-violent news dropped off more in the late afternoon than in the morning. Practical implications of the findings for news presentation are discussed.     

Orienting task effects on memory for presentation modality in children, young adults, and older adults.

Children (7 to 10 years), young adults (17 to 24 years), and older adults (55 to 77 years) were asked to learn three lists of words that were of mixed modality (half the words were visual, and half the words were auditory). With one list the subjects were asked a semantic orienting question; with another, a nonsemantic orienting question; and with a third, no orienting question. Half the subjects in each age group were also asked to remember the presentation modality of each word. Older adults remembered less information about modality than children and young adults did, and the variation in the type of orienting question--or the lack of one--affected modality identification. However, there was no Orienting Task x Age interaction for modality identification. The results of this study suggest that encoding modality information does not take place automatically--in any age group--but that explanations focusing on encoding strategies and effort are not likely to account for older adults' difficulties in remembering presentation modality.     

The effects of the presence of a face and direct eye gaze on voice identity learning

We rarely become familiar with the voice of another person in isolation but usually also have access to visual identity information, thus learning to recognize their voice and face in parallel. There are conflicting findings as to whether learning to recognize voices in audiovisual vs audio-only settings is advantageous or detrimental to learning. One prominent finding shows that the presence of a face overshadows the voice, hindering voice identity learning by capturing listeners' attention (Face Overshadowing Effect; FOE). In the current study, we tested the proposal that the effect of audiovisual training on voice identity learning is driven by attentional processes. Participants learned to recognize voices through either audio-only training (Audio-Only) or through three versions of audiovisual training, where a face was presented alongside the voices. During audiovisual training, the faces were either looking at the camera (Direct Gaze), were looking to the side (Averted Gaze) or had closed eyes (No Gaze). We found a graded effect of gaze on voice identity learning: Voice identity recognition was most accurate after audio-only training and least accurate after audiovisual training including direct gaze, constituting a FOE. While effect sizes were overall small, the magnitude of FOE was halved for the Averted and No Gaze conditions. With direct gaze being associated with increased attention capture compared to averted or no gaze, the current findings suggest that incidental attention capture at least partially underpins the FOE. We discuss these findings in light of visual dominance effects and the relative informativeness of faces vs voices for identity perception.     

面孔表情和声音情绪信息整合对返回抑制的影响

返回抑制(inhibition of return, IOR)与情绪刺激都具有引导注意偏向、提高搜索效率的特点, 但二者间是否存在一定的交互作用迄今为止尚不明确。研究采用“线索-目标”范式并在视听双通道呈现情绪刺激来考察情绪刺激的加工与IOR的交互作用。实验1中情绪刺激以单通道视觉面孔或一致的视听双通道呈现, 实验2通过在视听通道呈现不一致的情绪刺激进一步考察视听双通道情绪一致刺激对IOR的影响是否是由听觉通道一致的情绪刺激导致的, 即是否对听觉通道的情绪刺激进行了加工。结果发现, 视听双通道情绪一致刺激能够削弱IOR, 但情绪不一致刺激与IOR之间不存在交互作用, 并且单双通道的IOR不存在显著差异。研究结果表明仅在视听双通道呈现情绪一致刺激时, 才会影响同一阶段的IOR, 这进一步支持了IOR的知觉抑制理论。     

Effectiveness of a short audiovisual emotion recognition training program in adults

The ability to recognize emotions from others’ nonverbal behavior (emotion recognition ability, ERA) is crucial to successful social functioning. However, currently no self-administered ERA training for non-clinical adults covering multiple sensory channels exists. We conducted four studies in a lifespan sample of participants in the laboratory and online (total N?=?531) to examine the effectiveness of a short computer-based training for 14 different emotions using audiovisual clips of emotional expressions. Results showed that overall, young and middle-aged participants that had received the training scored significantly higher on facial, vocal, and audiovisual emotion recognition than the control groups. The training effect for audiovisual ERA persisted over 4 weeks. In older adults (59–90 years), however, the training had no effect. The new, brief training could be useful in applied settings such as professional training, at least for younger and middle-aged adults. In older adults, improving ERA might require a longer and more interactive intervention.