视觉工作记忆内容对视觉搜索的影响

采用记忆任务与视觉搜索任务相结合的范式,以二维对称图形为材料,探讨视觉工作记忆内容对视觉搜索的影响。结果发现：（1）不同视觉工作记忆内容条件下的反应时存在显著差异,无效信息条件下的反应时显著长于有效信息条件下的反应时。（2）不同搜索序列条件下反应时差异显著,复杂序列条件下的反应时显著长于简单序列条件。结果表明,视觉工作记忆中的信息内容影响视觉搜索效率,其变化趋势不受序列大小的影响,结果支持偏向竞争模型。     

THE LOCUS OF VISUAL AFTER-IMAGES

K olehmainen , K. & T uomisaari , R. The locus of visual after-images. Scand. J. Psychol ., 1969, 10 , 45–48.—Three bright spots of light aligned horizontally were presented, so that the distances between them were equal. Two adjacent lights were flashed on simultaneously and the third one somewhat later. The subjects reported the distance between the midmost light and the light which appeared later to be longer than the distance between the simultaneous lights (the 'tau-effect'). As to the after-images, however, the intervening distances were judged equal. The results are, accordingly, suggestive of a peripheral basis of the after-images.     

SIMULTANEOUS DISCRIMINATION OF VISUAL ATTRIBUTES

LIE, I. & ORSZAGH, G. Simultaneous discrimination of visual attributes. Scand. J. Psychol , 1971, 12, 128–130.–The accuracy of simultaneous discrimination of two attributes (colour and size) of a common visual object was compared with discrimination of a single attribute. No significant difference between single and double discrimination tasks was obtained for any of the four durations of exposure (40, 100, 175, 500 msec).     

THE VISUAL EXPERIENCE OF CAUSATION

The thesis that we can visually perceive causal relations is distinct from the thesis that visual experiences can represent causal relations. I defend the latter thesis about visual experience, and argue that although they are suggestive, the data provided by Albert Michotte's experiments on perceptual causality do not establish this thesis. Turning to the perception of causality, I defend the claim that we can perceive causation against the objection that its arcane features are unlikely to be represented in experience.     

VISUAL PERCEPTION OF CAPITAL LETTERS

The quantitative similarity of nine capital letters was studied (1) by the direct multidimensional ratio scaling method and (2) by the method of similarity analysis. Three factors, 'E', 'O' and T, were found. Factor loadings were nearly identical in both methods. A previously proposed equation did not describe the relation between subjective similarity and angular separation of percept vectors.     

TRAINING OF PERIPHERAL VISUAL ACUITY

An experiment was performed to investigate whether the duration of exposure and the size of the test objects are factors critical for obtaining a training effect in peripheral visual acuity. Contrary to previous results it is shown that considerable improvement may be obtained even under conditions of flash stimulation, provided that the test object used for training is sufficiently small to be just discriminable. The results are interpreted in terms of shifts in the maximum momentary level of attention from the central to the peripheral area of the visual field.     

脑损害时的视知觉和视觉记忆障碍

用复杂图形对82例脑瘤或脑血管畸形患者进行了测查,发现脑损害患者临摹复杂图形时易于发生一些在正常人中没有或极少见的错误,如片断性感知、空间相对位置错误和空间位置估计错误等。片断性感知以左脑中后部病变时较多见,空间相对位置错误以右脑中后部病变时较多见。空间位置估计错误与定侧关系不大,但以大脑中后部病变时较多见。 在回忆复杂图形时脑损害患者在细节遗漏和移位等方面在程度上比正常人更严重,有部分患者还表现为只回忆出部分细节而无图形轮廓的现象。这种现象在正常人中未曾出现。     

PERCEIVED CONTINUITY OF OCCLUDED VISUAL OBJECTS

Abstract— The human visual system does not rigidly preserve the properties of the retinal image as neural signals are transmitted to higher areas of the brain Instead, it generates a representation that captures stable surface properties despite a retinal image that is often fragmented in space and time because of occlusion caused by object and observer motion The recovery of this coherent representation depends at least in part on input from an abstract representation of three-dimensional (3-D) surface layout In the two experiments reported, a stereoscopic apparent motion display was used to investigate the perceived continuity of a briefly interrupted visual object When a surface appeared in front of the object's location during the interruption, the object was more likely to be perceived as persisting through the interruption (behind an occluder) than when the surface appeared behind the object's location under otherwise identical stimulus conditions The results reveal the influence of 3-D surface-based representations even in very simple visual tasks.     

CONSISTENT VISUAL ANALYSES OF INTRASUBJECT DATA

Visual inspection of single‐case data is the primary method of interpretation of the effects of an independent variable on a dependent variable in applied behavior analysis. The purpose of the current study was to replicate and extend the results of DeProspero and Cohen (1979) by reexamining the consistency of visual analysis across raters. We recruited members of the board of editors and associate editors for the Journal of Applied Behavior Analysis to judge graphs on a 100‐point scale of experimental control and by providing a dichotomous response (i.e., “yes” or “no” for experimental control). Results showed high interrater agreement across the three types of graphs, suggesting that visual inspection can lead to consistent interpretation of single‐case data among well‐trained raters.     

THE ADMISSIBLE CONTENTS OF VISUAL EXPERIENCE

My purpose is to take a close look at the nature of visual content. I discuss the view that visual experiences have only existential contents, the view that visual experiences have either singular or gappy contents, and the view that visual experiences have multiple contents. I also consider a proposal about visual content inspired by Kaplan's well known theory of indexicals. I draw out some consequences of my discussion for the thesis of intentionalism with respect to the phenomenal character of visual experience.     

照度变化对视觉辨认的影响

前 言 近年来,关于工业企业和民用照明视觉功能的探讨逐渐多起来,这方面的研究对于制定照度标准和保护视力有着现实意义。我国过去的研究虽获得不少有益结果,但大多是在一般照明环境中、照度一般在几百勒克斯以下,以阅读视力表作为视觉功能指标。本研究是在比较严格控制的近似等效球照度的实验条件下,在1.7-2160Lux照度范围内,控制观察时间,探讨照度变化对视觉辨认的影响。此外,我们还研究了两种背景(亮和暗)对视觉辨认的影响。     

NOTE ON SIMULTANEOUS DISCRIMINATION OF VISUAL ATTRIBUTES

van der H eijden A. H. C. Note on simultaneous discrimination of visual attributes. Scand. J. Psychol ., 1972, 13 , 71–72.—A tachistoscopically presented stimulus, provided it is above threshold, results in a visual image with a minimum duration of about 250 msec. In experiments on visual information processing, therefore, the results must be interpreted in terms of 'effective stimulus duration' (exposure time and duration of visual image) rather than exposure time alone.     

研究视错觉的新途径——用多级估量法测量视错觉的尝试

本研究尝试用新近发展出的一种称为多级估量的方法测量了视错觉。测量结果和经典的心理物理法(调整法)的测量结果明显相关。对一般的完形所作的比较判断,两种方法测得的数据,均随机分布在0的上下。 此种多级估量法,揭示了错觉是个模糊现象。在获得的数据基础上,作者给出了一种定义错觉强度的公式: 这里,A_0=∑μ_0(x_(?)),x_(?)=错觉强度的类别代表量(+2,+1,0,-1,-2),x_0=完形中比较线段和标准线段的比值。 此外,本研究还揭示了经典的垂直-水平错觉的一个新事实:错觉强度随着比较线段与标准线段比值的改变而发生变化。并且,每一个不同比值的完形,都引出了一个错觉的可能性分布。     

外源性视觉选择性注意的时空特征

使用与目标出现位置无关的外周空现刺激作为线索,研究在不同刺激呈现间隔（ＳＯＡ）下它对不同偏心 视觉目标的辨别反应时的影响,以考察外源性觉选择性注意的加工特生,并下三种注意空间分布模型对选择性注意时空特征的不同预测,结果表明：１．外周突现刺激能够不随意地吸引注意,符合自动加工特性;２．注意转移以注意中心连续移动的方式进行,支持探照灯模型,不支持透镜模型和静态的空间梯度模型,并在注意移动速率进行了估计     

DETECTION OF THE VELOCITY OF MOVEMENT OF VISUAL STIMULI BY PIGEONS

Nine pigeons were trained to discriminate a moving stimulus from a stationary stimulus. In one experiment, the stimulus was a rotating disc with radial stripes. In a second experiment, the stimulus was a vertically moving film strip with horizontal bars. Several psychophysical procedures were used to determine the minimal detectable velocity of movement. The detection thresholds for most of the pigeons fell in the range of 4.4 to 6.5 millimeters per second, corresponding to a retinal velocity of 4.1 to 6.01 degrees per second. A signal detection analysis of the psychophysical data indicated systematic changes in response bias that were related to the ordinal position of the stimulus velocity in the sequence.     

模拟歼击机主仪表板各视区视觉效果的研究

歼击机座舱的视界是人-机系统中组成人机界面的一个重要方面。对歼击机座舱外视界各国研究得比较多,而对座舱内部视界则研究得比较少。笔者用自行设计和研制的速识器和视标箱,在模拟我国现役歼击机座舱有关参数的条件下,实测100名空勤人员对分布在主仪表板上32个视标的反应时。把主仪表板分成八个区域(上、下各四个区),对测得的数据进行统计学处理,得出如下结论:上中两个区为最佳视区,右下区为一般视区,其余区域为较佳视区。把主仪表板分成四个区域(上、下各两个区),其视觉效果上比下好,左比右好,符合工程心理学的一般规律。     

VISUAL AND TACTUAL EXPLORATION IN RATS REARED IN DIFFERENT DEGREES OF VISUAL AND TACTUAL STIMULATION

NIELSEN, T. C. Visual and tactual exploration in rats reared in different degrees of visual and tactual stimulation. Scand. J. Psychol. , 1971, 12, 53–61. – Four groups of eight rats each were reared in the four possible combinations of high and low visual and high and low tactual stimulation. Early tactual enrichment increased later tactual exploration regardless of visual stimulation. Visual enrichment did not influence exploration in the tactual enrichment groups, but in the tactual deprivation groups it seemed to produce more visual and less tactual exploration. The most deprived group exhibited a high locomotor activity which could not be explained in terms of an increased tendency to explore.     

非言语沟通的视觉信息在电视教学中的作用

本研究用社会心理学关于非言语沟通的观点分析电视教学,认为剥夺有关教师非言语沟通的视觉信息可能是影响电视教学质量的一个原因。通过模拟电视教学的实验验证这一假设。在三种条件下对被试进行同样内容的教学:条件Ⅰ为传统课堂教学;条件Ⅱ为呈现教师形象的电视教学;条件Ⅲ为无教师形象只呈现板书图示的电视教学。课后进行所学知识的测验和态度问卷。结果表明,在电视教学中增加有关教师非言语沟通的视觉信息对学习者知识的掌握及对教师、教学内容和教学形式的态度有积极作用。将剥夺互动中非言语沟通的视觉信息的消极影响命名为“屏风效应”。对提高电视教学质量提出了新的建议。     

新生儿视觉分辨能力的研究

本研究的目的是用习惯化方法探讨新生儿视觉辨别能力的发展水平。一个由176名新生儿组成的样本在北京友谊医院随机取得。被试年龄在出生8分钟至13天之间。所有被试都是正常、健康的、处于觉醒状态的新生儿。实验材料是8张图片,其图案为:灰圆、红圆、黑色环形图、正常人脸、怪脸及3张黑白相间的栅条图形。这些图形随机配对组成10对,以作对比。实验结果表明:从出生起,新生儿就能对不同图案的图形进行视觉辨别;新生儿在一定程度上发展起颜色分辨的能力;两个图形,只在一个维度上相异时,较容易被新生儿辨别,新生儿的视觉分辨能力与其性别无显著相关。