Developmental changes in children's use of semantic information in recall

Third and seventh graders (age 9 and 13 years) were randomly assigned to three instructional groups and engaged in a sort/recall task. The instructions emphasized either (a) recall of the items, (b) meaningful organization of the items, or (c) meaningful organization and recall of the items. Regardless of instruction, seventh graders sorted 20 unrelated items into semantically-based groupings and exhibited elevated levels of recall. Third graders instructed to group items to facilitate recall formed seemingly random groupings and recalled significantly fewer items than third graders instructed to make semantically-based groupings, even when some of these latter subjects were unaware of a subsequent recall trial. The results indicated that young children are capable of adult-like organizational strategies but are unaware of their relevance to recall performance or conditions under which organization might be an appropriate strategy.     

Some determinants of looking time under different instructional sets

Four groups of Ss were asked to look at sets of figures whose members differed in degree of complexity and asymmetry. Ss instructed to look as long as the figures were pleasing did so for a significantly shorter time than did Ss who were instructed to look as long as they cared to, as long as the figures were interesting, or until they could recognize the figures in a large group of similar figures. Results indicated that looking time was affected by both the complexity and the asymmetry/symmetry dimensions and led to the conclusion that looking time is primarily a measure of exploratory behavior.     

Concept formation and categorization of complex,asymmetric, and impossible figures

Impossible figures are striking examples of inconsistencies between global and local perceptual structures, in which the overall spatial configuration of the depicted image does not yield a coherent three-dimensional object. In order to investigate whether structural “impossibility” is an important perceptual property of depicted objects, we used a category formation task in which subjects were asked to divide pictures of shapes into groups that seemed most natural to them. Category formation is usually unidimensional, such that sorting is dominated by a single perceptual property, so this task can serve as a measure of which dimensions are most salient. In Experiment 1, subjects received sets of 12 line drawings consisting of six possible and six impossible objects. Very few subjects grouped the figures by impossibility on the first try, and only half did so after multiple attempts at sorting. In Experiment 2, we investigated other global properties of figures: symmetry and complexity. Subjects readily sorted objects by complexity, but seldom by symmetry. In Experiment 3, subjects were asked to draw each of the figures before sorting them, which had only a minimal effect on categorization. Finally, in Experiment 4, subjects were explicitly instructed to divide the shapes by symmetry or impossibility. Performance on this task was perfect for symmetry, but not for impossibility. Although global properties of figures seem extremely important to our perception, the results suggest that some of these cues are not immediately obvious or salient for most observers.     

On the relation between spontaneous perspective taking and other visuospatial processes

Common processes and representations engaged by visuospatial tasks were investigated by looking at four frequently used visuospatial research paradigms, the aim being to contribute to a better understanding of which specific processes are addressed in the different paradigms compared. In particular, the relation between spontaneous and instructed perspective taking, as well as mental rotation of body-part/non-body-part objects, was investigated. To this end, participants watched animations that have been shown to lead to spontaneous perspective taking. While they were watching these animations, participants were asked to explicitly adopt another perspective (Experiment 1), perform a mental object rotation task that involved a non-body-part object (Experiment 2), or perform a mental rotation of a body-part object (Experiment 3). Patterns of interference between the tasks, reflected in the reaction time patterns, showed that spontaneous and instructed perspective taking rely on similar representational elements to encode orientation. By contrast, no such overlap was found between spontaneous perspective taking and the rotation of non-body-part objects. Also, no overlap in orientation representation was evident with mental body-part rotations. Instead of an overlap in orientation representations, the results suggest that spontaneous perspective taking and the mental rotation of body parts rely on similar—presumably, motor—processes. These findings support the view that motor processes are involved in perspective taking and mental rotation of body parts.     

Tactile perception and the right hemisphere: A masculine superiority for imagery coding

Recent research regarding hemispheric lateralization has suggested complex interactions among observed asymmetries, subject coding strategies, and sex differences in the utilization of and access to information codes. Prior to tactile perception of ambiguous figures, subjects were instructed to use either a verbal (left hemisphere) or imagery (right hemisphere) strategy. A non-instruction control group was included. Although a significant overall relationship between instructed strategy and tactile asymmetries was observed, this largely was due to males' privileged access to right-hemisphere imagery codes.     

基于物体的选择性注意理论的证据--对一例视觉忽视病人的研究

对一例视觉忽视病人的研究发现,线段划销任务中其忽视以基于相邻性组织而形成的知觉物体为中心;对视野两侧图形是否一样的判断受连通性组织的影响;报告数字时受基于颜色的相似性组织的影响.结果为基于物体的选择性注意理论提供了神经心理学证据.     

Action Figures and Men

Three studies were conducted to determine whether action figures contributed to negative body images in the young adult men who handled them. In Study 1 and Study 2, participants were randomly assigned to different conditions to handle action figures with different muscularity levels. The participants were instructed to place the action figures into various positions for a set time limit. Following the action figure manipulation, the participants completed scales to assess aspects of their body images (i.e., self-esteem, body esteem, and body satisfaction). Overall, the results indicate that touching and manipulating the more unrealistically muscular action figures significantly decreased participants' body esteem. In Study 3, we used a more realistic figure whose muscularity was more like an average man's. Following the same procedure as in Study 1 and Study 2, results showed that there was no significant difference between this action figure and the control group on all of the body image scales.     

Semantic processing and organization in free recall

It was hypothesized that both semantic processing and organizational activity are necessary for optimal free recall performance. In a series of three experiments, subjects were presented with a list of randomly selected nouns and were asked to make up a meaningful sentence for each noun. The subjects also rated the difficulty of using each noun. The subjects were instructed to try to remember words that were labeled "remember" words. For words that were labeled "story" words, the subjects were instructed only to make each sentence, using the word, part of an ongoing story which each subject was to make up. A test of retention for all presented words, using retention intervals of both 1 min and 24 h, showed that the story words were always recalled better than were the remember words. However, the amount of sequential organization was the same for both the story and the remember words. Recognition performance was found to be the same for both types of words. In addition, the story words were rated as being more difficult than the remember words. It was concluded that extensive semantic processing without organization is not sufficient for optimal recall.     

Intuition in the context of object perception: intuitive gestalt judgments rest on the unconscious activation of semantic representations

Intuition denotes the ability to judge stimulus properties on the basis of information that is activated in memory, but not consciously retrieved. In three experiments we show that participants discriminated better than chance fragmented line drawings depicting meaningful objects (coherent fragments) from fragments consisting of randomly displaced line segments (incoherent fragments) or from fragments which were rotated by 180 degrees (inverted fragments), even if participants did not consciously recognize the objects. Unrecognized coherent, but not incoherent or inverted fragments produced reliable priming of correct object names in a lexical decision task, indicating that coherent fragments activated an unconscious semantic object representation. Priming effects were larger for coherent fragments judged as coherent compared to coherent fragments judged as incoherent. We conclude that intuitive gestalt judgments for coherent fragments rested on the activation of semantic object representations, which biased participants' intuitive impression of "gestalt-ness" even when the underlying object representations remained unconscious.     

On what is bound in figures and grounds

All else being equal, regions providing a quick, good match to object memories are likely to be seen as shaped figures rather than as shapeless grounds. Good matches to object memories occur only if the parts are properly bound spatially. If object memories are accessed in the course of perceptual organization even for regions ultimately seen as shapeless grounds, then binding of parts cannot require attention to figures. Novel silhouette primes were shown immediately before real or novel line drawings. The silhouette contours of half of the primes preceding real line drawings sketched a known shape on the outside, which nevertheless appeared to be a shapeless ground. At short prime-line drawing SOAs, observers took longer to categorize real line drawings following these experimental primes than control primes, suggesting that parts are properly bound spatially for regions perceived to be shapeless grounds, and further that object memories matching grounds are inhibited.     

The effect of familiarity on the processing of fragmented figures

The processing of fragmented figures was investigated in a same-different reaction time task with pairs of intact and pairs of fragmented alphabet letters. The effect of fragmentation was significantly larger for pairs of letters rotated into an unfamiliar orientation than for pairs of normally oriented letters. Since this significant interaction was obtained for subjects emphasizing a structural mode of processing (Hock, 1973), it was concluded that familiarity had a direct effect on the structural/ organizational processing of the fragmented figures.     

两种时空线索条件下表面颜色特征线索对客体保持的作用*

采用客体回溯范式,以客体预览利化效应(object specific previewing benefit, OSPB)作为指标,考察表面特征线索对客体保持的作用。实验1使用双向隧道创建时空线索不明确的条件,研究表面颜色特征线索的作用。实验2使用单向隧道使时空线索明确,研究表面颜色特征线索与时空线索一致、冲突情境下的客体保持。实验1和实验2均出现了OSPB效应,且实验2冲突情境的OSPB效应低于一致情境。研究结果表明在时空线索不明确的条件下,仅凭表面颜色特征线索就能实现客体保持;在时空线索明确的条件下,时空线索是客体保持的主要线索,同时表面颜色特征线索也起一定的作用。     

Relative efficacy of different encoding structures and judgment topics in a cued-recall task

Existing research on the relative efficacy of the self as an encoding structure applies more to the self as an object than as a cognitive structure that guides the organization of incoming information. In order to provide a task that would be more directly relevant to encoding, subjects were asked to watch an interview of a resident assistant (RA) candidate by the housing department and to attend throughout to how similar the candidate's presentation was to the one they themselves or a typical RA would have given in the situation. Furthermore, judgments of similarity were divided into personality, ability, and nonverbal style. The dependent variable was a surprise cued-recall task, administered 20 min after the videotaped interview had ended. Consistent with prediction, subjects instructed to encode from a self-perspective exhibited better recall than those instructed to encode from a typical RA perspective. Also, as predicted, subjects who judged personality or ability similarity recalled more of the interview than those who judged nonverbal style similarity. Enhanced recall from the self-encoding perspective was consistent across all three types of judgments (personality, ability, nonverbal style), suggesting that the self is an efficient processing structure across a variety of diverse judgment topics.     

Illusory concomitant motion in ambiguous stereograms: evidence for nonstimulus contributions to perceptual organization

Three experiments were performed to test whether perceptual organization is cognitively or motivationally penetrable. In Experiments 1 and 2, subjects viewed a reversible stereogram while instructed to hold one depth organization. Responses about depth were recorded indirectly by recording responses about direction of the illusory concomitant motion that is perceptually coupled to depth in a stereogram. Inasmuch as perceptually coupled variables covary without necessary stimulus covariation, a post-perceptual locus for any intention effects they exhibit is unlikely. Experiments 2 and 3 examined the possibility that instructed intention might influence perception indirectly by influencing eye movements: Viewers' vergence position was measured directly through responses about alignment of a vernier nonius fixation. In all three experiments, a residual effect of instructed intention was found. Therefore, instructed intention may influence perceptual organization by influencing internal nonstimulus components integral to the perceptual process.     

Piecemeal organization and cognitive components in object perception: perceptually coupled responses to moving objects

In three experiments, observers who were instructed to perceive one of two alternative depth arrangements of a three-dimensional wire cube fixated near one of two intersections that differed in the degree to which they specified the cube's veridical depth organization. In order to separate perceptual effects from experimenter effects, we measured indirect reports about variables perceptually coupled to perceived depth rather than direct reports about perceived depth. In all three experiments, reversal durations at the two intersections differed, even though the two were parts of a single object. In addition, reversals varied with viewers' intentions. Thus, the unit of perceptual organization may be smaller than the entire object, and viewers' intentions can influence the perception of real moving objects. In additional analyses, reversal durations were separated into two components: nonelective instability and malleability; the question of whether these two components of ambiguity are functionally distinct could not be decided.     

Building a Pink Dinosaur: the Effects of Gendered Construction Toys on Girls’ and Boys’ Play

Play with building toys such as LEGO® sets promotes spatial learning in children. The present study examined the effects of the color of the bricks (either pink or blue) and the femininity/masculinity of the object built on boys’ and girls’ play with LEGO® sets. Children (n = 116, M _age  = 7.27 range = 5–10) were given the opportunity to build with LEGO® brick sets, both instructed and free play tasks. For the instructed task, the type of object (feminine: cat; masculine: dinosaur) and color of the bricks (pink, blue) were counterbalanced across participants. Their play was coded for accuracy of following the instructions and time to complete the task. In the free play task, brick color (pink, blue) was counterbalanced across participants, and structures were coded for femininity/masculinity and the number of bricks used. Overall, children took longer to build a feminine object with blue bricks than with pink bricks. In the free-play task, boys built more masculine objects than girls did, regardless of the color of bricks they were given. Results showed that boys completed the LEGO® tasks faster than did girls, controlling for interest in and experience with LEGO® play. These findings suggest that toy color and type can impact how children interact and play with toys.     

Incomplete figure perception and invisible masking

The Gollin test (measuring recognition thresholds for fragmented line drawings of everyday objects and animals) has traditionally been regarded as a test of incomplete figure perception or 'closure', though there is a debate about how such closure is achieved. Here, figural incompleteness is considered to be the result of masking, such that absence of contour elements of a fragmented figure is the result of the influence of an 'invisible' mask. It is as though the figure is partly obscured by a mask having parameters identical to those of the background. This mask is 'invisible' only consciously, but for the early stages of visual processing it is real and has properties of multiplicative noise. Incomplete Gollin figures were modeled as the figure covered by the mask with randomly distributed transparent and opaque patches. We adjusted the statistical characteristics of the contour image and empty noise patches and processed those using spatial and spatial-frequency measures. Across 73 figures, despite inter-subject variability, mean recognition threshold was always approximately 15% of total contour in naive observers. Recognition worsened with increasing spectral similarity between the figure and the 'invisible' mask. Near threshold, the spectrum of the fragmented image was equally similar to that of the 'invisible' mask and complete image. The correlation between spectral parameters of figures at threshold and complete figures was greatest for figures that were most easily recognised. Across test sessions, thresholds reduced when either figure or mask parameters were familiar. We argue that recognition thresholds for Gollin stimuli in part reflect the extraction of signal from noise.     

Subconscious image recognition

Two experiments demonstrate the influence of an unconscious form of information storage on behavior. In the learning phase, subjects see pictures in which other pictures or figures are embedded. The experimental procedure makes sure that these embedded figures cannot be seen (or consciously identified) by the subjects. Nevertheless, the results of a perceptual identification task in the test phase prove that information of these unidentified figures has been stored by the subjects: In a clarification task, subjects were shown the cut out, previously embedded figures and other pictures which they had to name as quickly as possible. The experimental group, which had seen the pictures with the embedded figures in the learning phase, was much quicker in responding to the naming task than the control group, which had not seen these pictures before. These results are discussed in terms of a distinction between sensori-perceptual and conceptual information storage in humans. Conceptual information is characterized as meaningful, symbolic, and accessible to conscious reasoning and remembering, while sensori-perceptual information is seen as nonsymbolic, modality-bound, and restricted to unconscious reactivations in data-driven process repetitions.     

Preliminary support for the use of a hierarchical mapping technique to examine attachment networks

In 2 studies, we investigated the validity and usefulness of a bull's eye hierarchical mapping measure to examine the content and structure of attachment networks. The bull's eye identified network differences between people of different attachment styles and between different ages. Attachment networks varied in the number of members and their hierarchical organization as a function of attachment style. Secure individuals included a higher number of secure relationships in their networks and placed them closer to the core self than their insecure relationships, as well as closer than did dismissing‐avoidant individuals. The bull's eye also allowed for the observation of meaningful interrelations between network members. Study 2 utilized a cross‐sectional design by which we observed network fluidity from mid‐ to late‐adolescence in addition to attachment style differences. One important finding was that late‐adolescents placed their friends closer to the core self than did midadolescents, reflecting increased use of peers as close attachment figures.