Perceived distance of targets in convex mirrors

We investigated the perceived distance of targets in convex and plane mirrors. In Experiment 1, 20 subjects matched the distance of targets in a real scene to the distance of a virtual target in different mirrors. The matched distances were much larger for convex mirrors than for a plane mirror. In Experiment 2, 20 subjects viewed two targets in a mirror and adjusted their own positions so that the distance to the closer target was perceived to equal the distance between the targets. The mean distance to the closer target was smaller for the convex mirrors than for the plane mirror. In Experiment 3, 20 subjects adjusted the position of a target so that the distance to it in a mirror was perceived to equal the distance designated by the experimenter. The best-fitting power functions showed that the scaling factors were larger for the convex mirrors than for the plane mirror, but the exponents were smaller for the convex mirrors than for the plane mirror. It is suggested that distance in the convex mirrors was perceived to be larger than in the plane mirror, and that the growth of perceived distance in the convex mirrors was slower than in the plane mirror.     

儿童阅读与心理理论间的关系

阅读与心理理论(theory of mind, ToM)在儿童发展过程中都发挥着重要的作用,梳理文献发现两者可能存在双向促进作用。儿童通过与家长或老师的共享阅读,启动联合注意,使用心理状态术语进行对话,进一步根据社会想象力,模拟社会互动,从而促进儿童心理理论发展。另一方面,在阅读过程中,心理理论能够助力儿童从宏观的阅读观的建立、元认知阅读策略的使用、故事情境模型的构建,到微观具体的短语、句子、语篇和多文本的理解等能力的提高,这些证据揭示了心理理论可以从多方面促进儿童阅读能力的发展。进一步的神经生理证据发现,阅读和心理理论这两个过程的神经活动是有一定重叠的。由此推测,两者可能具备潜在的双向促进关系。未来需要更深入和长期的纵向追踪研究为两者的关系提供丰富的实证证据。此外,还应进行更多中国的低龄儿童的研究。随着科技的发展和线上课程的盛行,也应更多关注多媒体内容阅读对儿童心理理论的影响。     

情绪通路异常与认知情绪偏差:慢性痛与抑郁症共病的神经心理机制

慢性疼痛与抑郁症具有高度共病性,但迄今尚无成熟理论能够阐释二者共病的神经心理机制。对慢性痛与抑郁的脑机制研究提示,慢性痛和抑郁常常涉及到相似的情绪脑区活动的异常改变;与此相对应的是,行为学研究发现,疼痛患者与抑郁患者在加工疼痛或抑郁相关信息时表现出了模式相似的认知情绪偏差(CAB)。近年来,越来越多证据趋于一致,指出慢性痛和抑郁共有的情绪通路异常变化可能导致了相似的信息加工异常,是二者共病的神经心理基础,而认知情绪偏差则在行为上反映了这种变化,并且很可能是共病发生、发展及维持的重要因素。     

插图在说明文阅读理解中的作用

研究的目的在于揭示插图对说明文阅读理解的影响。实验中使用移动窗口技术对阅读过程中插图的作用进行探讨,并考察空间想象能力在其中的作用。结果表明：１．插图可以改进说明文的阅读理解,提高阅读速度;２．插图可以帮助读者建立文章所描述物体的参照表征,在建立参照表征的过程中,插图有利于重要概念的理解和有关参照表征信息的整合;３．插图有助于空间想象能力低的读者理解重要概念以及整合有关信息。     

Effectiveness of color in picture recognition memory

Investigations were conducted into the effectiveness of color in picture recognition memory. In the study phase, half of the pictures were presented in color and the other half in black and white. In the test phase, half were presented in the same color mode as the study pictures and the other half in the other mode. In immediate and 1-week-delayed tests, the recognition performance was highest when color pictures were used in both the study and test phases. The recall for the color mode of the study pictures, however, was not as good, even with the color pictures. This suggests that the effectiveness of color in picture recognition is not necessarily due to the memory for colors in the pictures themselves, but is probably due to the distinctiveness of features highlighted by the colors. We also found that in the recall performance for the color mode it was more difficult to detect the deletion of colors than to detect their addition.     

EFFECTS OF PICTURE PROMPTS ON THE ACQUISITION OF COMPLEX VOCATIONAL TASKS BY MENTALLY RETARDED ADOLESCENTS

The effects of using picture prompts on the acquisition, generalization, and maintenance of complex vocational tasks were evaluated within a multiple baseline design across subjects and tasks. Five moderately and severely mentally retarded adolescents were first trained to use picture prompts to guide their performance on one or more complex tasks. Following training, posttesting with and without the picture prompts was conducted to evaluate the effects of training and to determine maintenance effects over a 2- to 4-week interval. Generalization of performance across tasks was assessed with three of the students who were provided novel tasks (with and without picture prompts) without training. Results indicated that picture prompts can be successfully used to promote both acquisition and generalization of performance, and that subsequent training time on a novel task was reduced when the use of picture prompts had been previously trained.     

SOME EFFECTS OF REINFORCEMENT SCHEDULES IN TEACHING PICTURE NAMES TO RETARDED CHILDREN1

The effects of several different schedules of primary reinforcement were compared in a picture-naming task with retarded children. In Experiment I, number of correct responses and learning rate were higher under fixed-ratio schedules than under continuous reinforcement. In Experiment II, number of correct responses and learning rate tended to be greater under intermediate than under low or high fixed-ratio schedules. In Experiment III, number of correct responses was higher under interlocking schedules, in which the response requirement increased with time following the previous reinforcement, than under comparable fixed-ratio schedules. Learning rates were generally low and, perhaps because of this, not very different under the two types of schedules in this experiment. Accuracy (i.e., proportion of trials on which correct responses occurred) was typically high and insensitive to variations in schedule and schedule parameter throughout each experiment.     

Diagnostic accuracy of the Millon test computer reports for bipolar affective disorder

The diagnostic accuracy of the Millon Clinical Multiaxial Inventory (MCMI) computer reports was assessed for the sample of 48 patients reliably identified as having bipolar affective disorder. Only 13 of the 48 reports were accurate in classifying the patients as having bipolar affective disorder, and this was significantly (p < .01) less than 50% of the cases. The diagnostic accuracy clearly left much to be desired. Additional research is needed to assess the validity of MCMI diagnostic suggestions for other patient groups.     

Mood and Creativity over Time in a Bipolar Participant

When depression alternates with mania, as in a bipolar affective disorder, creativity might be enhanced. To investigate this, we employed a single‐subject design, looking at both affective space and the spectral covariation of mood and creativity in a participant presenting with bipolar affective disorder. The study was conducted over a period of 54 days, and employed a standard measure of mood (the Brief Mood Introspection Scale) and a standard task of creativity (Alternative Uses Task). Both positive affect and negative affect appear to be somewhat undifferentiated for this participant, and her mood space does not conform to that described by the accepted major dimensions of Arousal and Pleasure. Conceivably, this is because of her rapid mood fluctuations. A 2.7‐day periodicity was found for Tired, Peppy, Nervous, and Calm, on the one hand, and ideational fluency, ideational flexibility, and originality, on the other. In addition, a 9‐day periodicity was common to Happy, Sad, and Gloomy—all three affects clustering in the same affective space—together with both ideational flexibility and originality. This finding brings into question the relationship between creativity and both positive and negative mood.     

海洛因戒断者的阈下情绪启动研究

研究表明海洛因戒断者的情绪加工异常,但其阈下情绪加工是否异常尚无定论。本研究采用阈下情绪启动范式,考察其阈下情绪加工能力。结果：戒断组的反应时显著高于控制组;两组中,相比不一致、控制状态,一致状态反应时均显著最短;在戒断组中,不一致状态的反应时显著大于控制状态,负性图片的反应时显著大于正性图片,而在控制组中差异不显著。结论：戒断者存在阈下情绪启动效应,阈下情绪加工存在正性偏向,且能力弱于正常人。