Assessing object representations as a continuous variable: a modification of the concept of the object on the Rorschach scale

Current methods for assessing the quality of internalized object representations have not provided a continuous variable that simultaneously includes both an accuracy and a maturity component. A modification of Blatt, Brooks, Brenneis, and Schimek's (1976) Concept of the Object on the Rorschach scale that would combine the two components by weighting the quality of each response according to its form level was proposed. Initial discriminant and convergent validity of this modification was checked through correlations and multiple regression analyses using behavioral, diagnostic, and demographic data from 84 adolescent inpatients as dependent variables. Results indicate the modified score was directly related to measures of peer relatedness, intelligence, psychological health, and reality testing, and indirectly related to measures of psychosis and hostile, unmanageable behavior. The results support the utility of the modification for providing a continuous score that assesses both developmental maturity and accuracy, the two dimensions on which the concept of object representation is based.     

The Effects of Object Weight on the Kinematics of Prehension

The purpose of these experiments was to determine the effects of object weight and condition of weight presentation on the kinematics of human prehension. Subjects performed reaching and grasping movements to metal dowels whose visible characteristics were similar but whose weight varied (20, 55, 150, 410 g). Movements were performed under two conditions of weight presentation, random (weight unknown) and blocked (weight known). Three-dimensional movements of the thumb, index finger, and wrist were recorded, using a WATSMART system to obtain information regarding the grasp and transport components. The results of the first experiment indicated that object weight and condition of presentation affected the temporal and kinematic measures for both the grasp and transport components. In conjunction with the results of a second experiment, in which time in contact with the dowel was measured, it was shown that the free-motion phase of prehension (i.e., up to object contact) was invariant over the different conditions, however. The changes were observed in the finger-object interaction phase (when subjects applied forces after contact with the dowel), prior to lift-off. These results were interpreted as indicating (a) object weight does not influence the planning and execution of the free-motion phase of prehension and (b) there are at least two motor control phases involved in prehension, one for making contact with the object and the other for finger-object interaction. The changing contributions of visual, kinesthetic, and haptic information during these two phases is discussed.     

真实物体搜索中的视角依赖效应:来自眼动的证据

已有研究发现物体识别存在视角依赖效应,那么在真实物体搜索中是否也存在视角依赖效应呢?本研究采用物体阵列搜索任务,通过眼动技术探讨真实物体搜索中的视角依赖效应及其来源。结果发现:(1)图片提示的搜索绩效优于名称提示;(2)以名称提示时,常规视角的搜索绩效高于新异视角,与新异视角相比,以常规视角呈现的目标物体在扫描和确认阶段的注视点数较少且持续时间较短,表现出视角依赖效应;(3)以图片为提示时,搜索绩效与视角无关。由此可见,在以名称提示的物体搜索中,常规视角比新异视角条件下的注意引导更高效,对目标物体的确认也更快,扫描和确认阶段均存在视角依赖效应,支持目标模板的双功能理论。     

Object memory and change detection: dissociation as a function of visual and conceptual similarity

People often fail to detect a change between two visual scenes, a phenomenon referred to as change blindness. This study investigates how a post-change object's similarity to the pre-change object influences memory of the pre-change object and affects change detection. The results of Experiment 1 showed that similarity lowered detection sensitivity but did not affect the speed of identifying the pre-change object, suggesting that similarity between the pre- and post-change objects does not degrade the pre-change representation. Identification speed for the pre-change object was faster than naming the new object regardless of detection accuracy. Similarity also decreased detection sensitivity in Experiment 2 but improved the recognition of the pre-change object under both correct detection and detection failure. The similarity effect on recognition was greatly reduced when 20% of each pre-change stimulus was masked by random dots in Experiment 3. Together the results suggest that the level of pre-change representation under detection failure is equivalent to the level under correct detection and that the pre-change representation is almost complete. Similarity lowers detection sensitivity but improves explicit access in recognition. Dissociation arises between recognition and change detection as the two judgments rely on the match-to-mismatch signal and mismatch-to-match signal, respectively.     

三维图形的客体和空间工作记忆存储时程研究

研究采用单探测变化检测范式,探讨了三维图形在视觉客体和空间工作记忆中的存储时程。实验一的三维图形由不同颜色、形状组成,实验二的图形由不同颜色、图案组成。两个实验的结果均发现:被试的正确率随刺激间隔时间的延长而显著下降; 空间工作记忆任务的正确率显著高于客体工作记忆任务。研究结果表明,视觉刺激消失后,不论是客体信息还是空间信息,均随间隔时间的延长而逐渐衰退,且客体信息衰退的速度比空间信息快。总体来看,三维图形的客体和空间信息在视觉工作记忆满负荷条件下能保持大约3～5秒的时间。     

汉语句子理解中物体隐含颜色心理模拟的ERPs研究

当前研究采用事件相关电位(ERPs)技术,同时沿用经典的句图匹配范式,考察句子理解中物体典型颜色与非典型颜色的心理加工过程在脑电活动上的反映。实验中被试先阅读句子再判断句子后呈现的图片物体是否在句子中出现过,句子中隐含的物体颜色或是关键物体的典型颜色或是非典型颜色。实验结果发现,典型颜色句子版本下句图不匹配条件比句图匹配条件引发了更大的N400效应;而非典型颜色句子版本下两者N400差异不显著。研究结果表明,人们在汉语句子理解过程中会实时对隐含的物体颜色信息进行心理模拟。并且,句子隐含物体颜色的典型性是造成匹配易化或不匹配易化的关键因素之一。     

Object detection in natural scenes: Independent effects of spatial and category-based attention

Humans are remarkably efficient in detecting highly familiar object categories in natural scenes, with evidence suggesting that such object detection can be performed in the (near) absence of attention. Here we systematically explored the influences of both spatial attention and category-based attention on the accuracy of object detection in natural scenes. Manipulating both types of attention additionally allowed for addressing how these factors interact: whether the requirement for spatial attention depends on the extent to which observers are prepared to detect a specific object category—that is, on category-based attention. The results showed that the detection of targets from one category (animals or vehicles) was better than the detection of targets from two categories (animals and vehicles), demonstrating the beneficial effect of category-based attention. This effect did not depend on the semantic congruency of the target object and the background scene, indicating that observers attended to visual features diagnostic of the foreground target objects from the cued category. Importantly, in three experiments the detection of objects in scenes presented in the periphery was significantly impaired when observers simultaneously performed an attentionally demanding task at fixation, showing that spatial attention affects natural scene perception. In all experiments, the effects of category-based attention and spatial attention on object detection performance were additive rather than interactive. Finally, neither spatial nor category-based attention influenced metacognitive ability for object detection performance. These findings demonstrate that efficient object detection in natural scenes is independently facilitated by spatial and category-based attention.     

Object continuity and the transsaccadic representation of form

Transsaccadic object file representations were investigated in three experiments. Subjects moved their eyes from a central fixation cross to a location between two peripheral objects. During the saccade, this preview display was replaced with a target display containing a single object to be named. On trials on which the target identity matched one of the preview objects, its orientation either matched or did not match the previewed orientation. The results of Experiments 1 and 2 revealed that orientation changes disrupt perceptual continuity for objects located near fixation, but not for objects located further from fixation. The results of Experiment 3 confirmed that orientation changes do not disrupt continuity for distant objects, while showing that subjects nevertheless maintain an object-specific representation of the orientation of such objects. Together, the results suggest that object files represent orientation but that whether or not orientation plays a role in the processes that determine continuity depends on the quality of the perceptual representation.     

Object representation guides infants' reaching in the dark.

Infants were presented with two sounding objects of different sizes in light and dark, in which sound cued the object's identity. Reaching behavior was assessed to determine if object size influenced preparation for grasping the object. In both light and dark, infants aligned their hands when contacting the large object compared with the small object, which resulted in a reach with both hands extended for the large object and reach with one hand more extended for the small object. Infants contacted the large object more frequently on the bottom and sides rather than the top, where the sound source was located. Reaching in the dark by 6 1/2-month-olds is not merely directed toward a sound source but rather shows preparation in relation to the object's size. These findings were interpreted as evidence that mental representation of previously seen objects can guide subsequent motor action by 6 1/2-month-old infants.     

三维图形的客体和空间工作记忆存储机制

采用单探测变化检测范式,通过两个实验探讨了三维双特征图形在视空间工作记忆中的存储方式。实验一的记忆材料为由颜色和形状两种基本特征组成的三维图形,实验二的材料为由基本特征和细节特征组成的三维图形。被试为60名大学本科生（实验1、2各30名,年龄在19~24岁之间,平均21.25岁和21.71岁）。两个实验的结果均显示：特征交换变化条件下的记忆成绩与单一特征变化条件下最小的平均检测正确率无显著差异。这表明,由两种异质特征组成的三维图形在视觉客体和视觉空间工作记忆中均能以整合的单元进行存储。     

Two conceptions of maturity examined in the findings of a longitudinal study

The third vector score (competence) of the revised California Psychological Inventory (CPI) and ego level as assessed by the Loevinger Sentence Completion Test (SCT) are measures of alternative ways of conceptualizing maturity: as the ability of the individual to function effectively in society or as the degree of intrapsychic differentiation and autonomy. A longitudinal study of women (for the CPI, N = 107; for the SCT, N = 90) provides these two measures of maturity at age 43. Competence and ego level were correlated with antecedent and concurrent measures selected from inventories and life history material concerning work, marriage, relations with parents, and so forth, to assess aspects of maturity adapted from Allport: self-extension in significant endeavors, reality orientation in perception of self and others and in the conduct of one's activities, capacity for intimacy, emotional security, and individuality of personal integration. Results from the age-21 data indicate that competence and ego level are enduring trait complexes. Despite considerable overlap, they differ conspicuously in the greater emphasis of competence on emotional security and of ego level on individuality of personal integration. Analysis of the patterning of competence and ego level in the whole sample and in homogeneous groups high on one or both measures suggests psychological reasons why the two types of maturity diverge and why the relation of ego level to adjustment seems to be curvilinear.     

背景线索对视觉客体连续性表征的影响

该研究考察了背景线索连续性对客体心理表征连续性的作用。采用2（目标客体运动形式：连续和不连续）×2（引导线索运动形式：连续和不连续）两因素被试内设计,12名被试参加实验。结果发现,目标客体在时空上不连续时,连续线索条件下对颜色变化检测反应时小于线索不连续条件;目标客体在时空上连续运动时,不连续线索条件下对目标颜色变化的检测反应时高于线索连续条件。因此,不连续背景线索对物理层面上连续运动客体的表征有干扰影响：连续背景线索对物理层面上不连续运动客体的表征有促进作用。这说明特殊的时空条件如背景线索引导会对客体表征连续性产生重要影响。     

Episodic Representation of Diagnostic and Non-Diagnostic Object Color

In three experiments, we investigated transsaccadic object file representations. In each experiment, participants moved their eyes from a central fixation cross to a saccade target located between two peripheral objects. During the saccade, this preview display was replaced with a target display containing a single object to be named. On trials in which the target identity matched one of the preview objects, its color either matched or did not match the previewed object color. The results indicated that color changes disrupt perceptual continuity, but only for the class of objects for which color is diagnostic of object identity. When the color is not integral to identifying an object (for example, when the object is a letter or an object without a characteristic color), object continuity is preserved regardless of changes to the object's color. These results suggest that object features that are important for defining the object are incorporated into its episodic representation. Furthermore, the results are consistent with previous work showing that the quality of a feature's representation determines its importance in preserving continuity.     

两维特征图形的客体和空间工作记忆存储研究

研究采用单探测变化检测范式,考察了两维特征图形在视觉客体和视觉空间工作记忆中的存储机制,并对其容量进行测定。40名被试(平均年龄20.56±1.73岁)随机分为两个等组,分别完成实验一和实验二。实验一的刺激图形由颜色和形状两基本特征组成,实验二的刺激为由不同颜色和开口朝向组成的兰道环。两个实验结果均显示:(1)特征交换变化条件下的记忆成绩与单特征变化条件下最差的记忆成绩差异不显著;(2)空间工作记忆任务的成绩显著优于客体工作记忆任务;(3)被试在视觉工作记忆中能存储2~3个客体和3~4个空间位置。这表明,由两种不同维度特征组成的图形在视觉客体和视觉空间工作记忆中均以整合方式进行存储,空间工作记忆的容量大于客体工作记忆。     

Children,Object Value,and Persuasion

We argue that, contrary to standard views of development, children understand the world in terms of hidden, nonobvious structure. We review research showing that early in childhood, items are not understood strictly in terms of the features that present themselves in the immediate “here‐and‐now,” but rather are thought to have a hidden reality. We illustrate with two related but distinct examples: category essentialism, and attention to object history. We discuss the implications of each of these capacities for how children determine object value. Across a broad range of object types (natural and artifactual, real and virtual, durable and consumable), an item is evaluated very differently, depending on inferred qualities and context. In this way, children's early‐emerging conceptual frameworks influence how objects attain both psychological and monetary value, and may have important implications for which messages children find most persuasive.     

Career maturity aspects of the Kuder Occupational Interest Survey

The Kuder Occupational Interest Survey (1979) (KOIS) is used in counseling services as an aid in career counseling, but the KOIS does not have a measure of career maturity. The purpose of this study was to determine if selected scores from the KOIS could be indicative of client career maturity. The data for each subject included three scores from the KOIS and one measure of career maturity. The three scores from the KOIS included the highest Occupation score, the highest College Major score, and either the Father score for male subjects or the Mother score for female subjects. Career maturity was assessed with the Career Maturity Inventory Attitude Scale (1973) (CMI). The three scores from the KOIS were correlated with the score from the CMI to determine the relationship between the KOIS and career maturity. t tests were used to test for significant differences between men and women on the four measures. Significant correlations were found between the KOIS scores and career maturity, supporting the statements in the KOIS manual regarding the relationship between high KOIS scores and maturity. There was no significant difference between females and males on the CMI, Occupation, or College Major scores, but females scored significantly higher on the Mother scale than males did on the Father scale. Implications for career counseling were discussed.     

Basis of metamemory judgments for text with multiple‐choice,essay and recall tests

Accuracy of metamemory for text was compared for multiple‐choice, essay and recall tests. Essay and recall tests were scored with Latent Semantic Analysis (LSA), number of correct idea units and number of word matches. Each measure was correlated with college students' predictions and posttest confidence judgments across texts to determine metamemory accuracy. Metamemory accuracy varied for different types of tests with multiple‐choice tests generally producing greater accuracy than essay tests. However, metamemory accuracy for essay and recall tests depended on the measure used to score them. Number of correct idea units produced the highest metamemory accuracy, word matches produced an intermediate level, and LSA produced the lowest accuracy. Students used the quantity of output in their judgments, so performance measures that related most strongly to quantity matched judgments better than measures based on answer quality. The results are compatible with an accessibility account of judgments about performance on text. Copyright © 2008 John Wiley & Sons, Ltd.     

Norms as a tool for the study of homography

Four continuous word associations to each of 107 homographs were obtained from 50 male and 50 female undergraduates. Included in the word sample were 12 nonhomophonic homographs (heterophones). The data were analyzed to derive two indexes. A dominance score was defined on the basis of the frequency that a particular meaning was associated to each homograph. A stability score was a measure of the likelihood that the continuous associations were consistent with the first associate. Norms were provided for these measures. Comparison of heterophones to homophones indicates that the former are significantly more stable.     

The influence of a career group experience on the vocational maturity of college students

The effects of a career group experience on the vocational maturity of theoretically grouped college freshmen and sophomores were investigated using Super's Career Development Inventory as the dependent measure. The dimensions of consistency/inconsistency and differentiation/nondifferentiation, as identified utilizing Holland's Vocational Preference Inventory, were investigated along with the dimensions of treatment/nontreatment and interaction effects. Predictions related to change in vocational maturity as a result of treatment were made for each dimension. The analysis sample was a group of 68 volunteer freshman and sophomore college students. Results indicated that students did significantly increase their vocational maturity as a result of the group experience. Furthermore, it was found, as predicted, that within experimental groups inconsistent and nondifferentiated students improved significantly more on some vocational maturity measures than consistent or differentiated students. Students who were both inconsistent and nondifferentiated showed consistently greater increases on virtually all vocational maturity measures than all other theoretical groups.