Differential use of partial information by good and poor readers

Two interpretations of the poor readers' deficit are examined. According to one interpretation, poor readers are primarily deficient in use of phonetic information, and, thus, their deficit is specific to reading or at least to use of language. A second interpretation is that good and poor readers differ in their ability or tendency to use stimulus attributes—that is, partial information for stimulus identity—and, thus, their deficit is not specific to reading. Three experiments provide evidence favoring the second interpretation. Good and poor readers perform differently in tests of memory—whether or not the stimulus items are coded phonetically—when information about stimulus identity is incomplete due to memory loss and the response measure is sensitive to partial-information use in guessing. Likewise, the two groups perform differently in a perceptual task when information for stimulus identity is partial, but they perform at similar levels when information is complete.     

Naloxone and Pavlovian fear conditioning

Previous research has shown that pretreating rats with the opiate antagonist naloxone increases the freezing that follows painful electric shock. Three experiments, using freezing behavior as a dependent variable, were carried out to determine whether the drug might cause this effect by enhancing fear conditioning. Two of the studies employed a differential context fear-conditioning paradigm. Naloxone did not affect freezing behavior during the preshock adaptation period. In Experiment 1, naloxone was found to increase resistance to extinction in the S+ context. In Experiment 2, naloxone was found to increase freezing in the S+ context. This effect was dependent upon administering naloxone during training but not dependent on administering it during testing. The third study employed a generalization paradigm. It was found that naloxone's effect on postshock freezing was dependent on the place of testing; as the contextual cues of the test chamber were changed from those of the conditioning chamber, the effect of naloxone on freezing was reduced. The results of these experiments lend strong support to the hypothesis that naloxone increases freezing by enhancing the conditioning of fear to contextual stimuli associated with shock.     

A developmental study of the effect of familiarity on short-term visual memory

An attempt was made to specify whether previously reported limitations on young children's full-report capacity lay in a smaller amount of available information, in a shorter trace duration of information in visual information storage (VIS), or in poorer coding of information into permanent storage. Five- and 8-year-olds and adults were shown an eight-item array of figures. followed at varying intervals by an indicator signaling the subject to report the figure to which the indicator had pointed. The effects of three levels of familiarity or “labelability” were examined. While no age differences were revealed in amount of information available nor in the trace duration of information in VIS, strong age differences emerged in coding of information into permanent storage. Data on latency to verbal labeling and familiarity suggested that verbal labeling could not account for the age trends. Rather, the differences seemed to lie in the use of organized visual coding and rehearsal strategies by adults and their relative lack of use by children.     

The effect of vicarious punishment on prosocial behavior in children

Two experiments are reported dealing with the effects of vicarious punishment on prosocial behavior. In Experiment I, first and second grade females who witnessed a peer model being punished for a refusal to share (“nonsharing, punished”), shared more than an appropriate control group. Sharing was similarly heightened, however, in a group who witnessed punishment to the model which was not contingent upon any specific behavior (“punishment only”). Experiment II tested and confirmed the hypothesis derived from Experiment I that noncontingent vicarious punishment has a generalized inhibitory effect on antisocial behaviors. First, second, and third grade females were shown either the “nonsharing, punished,” “punishment only,” or baseline videotapes used in Experiment I. Subsequent to viewing the tapes, subjects in the “punishment only” condition helped the experimenter significantly more than did subjects in the “nonsharing, punished” and baseline conditions. The ability of existing theoretical treatments of vicarious punishment to account for these results is questioned.     

Conditioning of counter-empathetic emotional responses

The present research tested the hypothesis that the quality of an observer's vicarious emotional response, as measured by autonomic, expressive, and self-report indexes, is a function of the observer's conditioning history with particular facial expressive displays of emotion. It was predicted that conditions of congruence (Symmetry) between the affective expression of a model and the outcome (shock or reward) presented to an observer would enhance initial empathetic responses, but that conditions of incongruence (Asymmetry) between the model's displays and observer's outcomes would lead to counter-empathetic responses. These changes in the quality of observers' vicarious emotional responses should generalize to a test phase when no rewards or punishments are presented to observers. The results for all measures were consistent and indicate that asymmetric conditioning modified the initial empathetic responses of observers to either counter-empathetic responses or indifference. On the other hand, symmetric conditioning enhanced observers' initial empathetic responses. These effects were evident in the test phase when no reinforcements were administered to the subject. The results are consistent with the theoretical assumption that facial expressions of emotion can acquire meaning and hedonic valence because of their predictive significance and thus can function as conditioned stimuli capable of evoking empathetic and counter-empathetic emotional responses.     

Memory for instances and categories in children and adults

College subjects and 7-year-olds were trained in sorting 16 words into two conceptual categories. Training consisted of either three list presentations (Experiment I) or training to solution (Experiment II). Then either immediately or after a 3 to 4 week delay subjects received a recognition test which assessed memory for the instance vs categorical properties of the task stimuli by embedding words from the original list and from the list categories with confusion items from either the same or different categories as those on the original list. The data indicated that learning and memory were controlled primarily by categorical properties of the task items in adults and by specific instance properties in children. However, there was evidence that children had learned the categorical attributes of the task and may have differed from adults chiefly in their failure to utilize these attributes to assist learning and memory performance. The age differences in learning and memory were independent of the degree of initial training.     

Sex differences in the educational and occupational aspirations of rural youth

Rural girls (N = 926) and boys (N = 861) in grades 10, 11, and 12 answered questions concerning educational and occupational aspirations. The young women showed significantly higher educational aspiration, the same or higher occupational aspiration, and equal ranges of job choice. The results are discussed with respect to previous findings, and to status attainment models.     

The effect of modification of expressive displays on vicarious emotional arousal

Several recent experiments have demonstrated that modulation of the facial expressive response is accompanied by changes in autonomic arousal and subjective response to painful stimuli. The present study asked whether facial self-regulation may also bring about changes in covert vicarious emotional experience. Three groups of subjects were exposed to a videotaped model displaying intermittent pain to shock in a differential vicarious autonomic conditioning paradigm. Subjects in the inhibit and amplify groups were asked, respectively, (a) to inhibit their facial muscles or (b) to pose a facial response of pain when the model was shocked. It was predicted that the inhibit group would show less autonomic arousal to the model's expressive display (empathy) and less conditioning (as measured by skin conductance and heart rate change), and the amplify group more empathy and conditioning, than a third group who was given no facial instruction. In fact, the amplify group showed more skin conductance arousal, heart rate acceleration, and activity in response to the model's expressive display of pain than did the other two groups (which were not different from each other), but no more autonomic or facial conditioning. The overall pattern of physiological data is interpreted as generally supportive of a facial feedback theory of emotion: where significant between-groups' differences were obtained in facial activity, as in vicarious instigation, autonomic arousal differences also emerged; where no expressive differences were obtained, as in vicarious conditioning, no differences in autonomic arousal were found.     

Recognition versus recall of briefly presented visual information: a developmental study.

Five-year-olds, as compared to adults, have displayed a striking constraint on short-term recognition memory for briefly presented visual information. In the present study, a recall paradigm was also examined to test the generality of this constraint. Additionally, we examined the possibility that forced verbal report might differentially enhance children's performance. Evidence of improved performance in children would suggest that a verbal encoding strategy, used by adults only during the recognition task, is activated in children in a recall task. Though recall memory performance of young children did surpass recognition memory levels, the same was true for adults with the relative adult-child difference remaining constant across conditions. It was concluded that processes other than verbal labeling (e.g., buffer storage, organization, retrieval) are probably more responsible for age differences in immediate memory performance than labeling, per se.     

Retrieval variability: The inefficient use of retrieval cues by young children

The hypothesis of this study is that the inefficient use of retrieval cues by young children is due to retrieval variability: the variable encoding of semantic information in cue stimuli at input and retrieval and the inability to reinterpret cue information to ensure cue-trace compatibility. The critical manipulations involved the use of semantic orienting questions at both input and retrieval. Second and fourth graders and college adults were given moderately associated word pairs (Knife-Axe). Encoding was constrained or free between groups at both input and retrieval. The retrieval questions biased the Same interpretation of the cue as at input (weapon), a uniquely Different interpretation (utensil), or an inappropriate Negative interpretation. Both cued recall and recognition of the target items was tested. The results showed systematic developmental increases both in the distinctiveness of the semantic encoding of stimulus information, and in the ability to reinterpret cue information to ensure cue-trace compatibility. The second graders encoded more variably than the older subjects, and were less able to shift from an incompatible encoding of cue information.     

The production and verification tasks in mental addition: An empirical comparison

We respond to A. Baroody's comment (1984, Developmental Review, 4, 148–156) with an empirical comparison of the production and verification tasks. With the exception of performance at the first grade level, the two tasks yield essentially identical conclusions. The results of an adjunct task, in which the rate of mental counting was assessed, suggest that children as young as second grade are relying on memory retrieval to a significant degree. In contrast to Baroody's speculation, there appear to be no widespread difficulties associated with results from the verification task. Furthermore, the task permits a more analytic examination of performance and underlying mental process than is afforded by the production task. We conclude by reiterating the empirical support for a model of fact retrieval, and suggesting that accessibility of the arithmetic facts is the basic factor which underlies both fact retrieval and procedural knowledge performance.     

Spontaneous versus instructed use of multiple standards for evaluating comprehension: Effects of age,reading proficiency,and type of standard

Nine- and eleven-year-old children differing in reading proficiency read and commented on brief expository passages containing three different types of embedded problems (nonsense words, prior knowledge violations, and internal inconsistencies). Half of the children were specifically instructed as to the types of standards they should apply in order to detect the problems (lexical, external consistency, and internal consistency); the remaining children were simply instructed to look for problems. Both quantitative and qualitative differences in standard use were revealed by the children's comments about all parts of the passages. Older and better readers used more different standards and they used them more frequently than younger and poorer readers. The lexical standard was more likely to be adopted spontaneously than the other two standards and it was the only standard used by a substantial proportion of both younger and poorer readers. Finally, the consistent effects of instruction type indicate that children's evaluation activities were strongly influenced by the amount of guidance received.     

Changing roles for the school mental health professional

Draws on the experience of an innovative school mental health project, emphasizing early detection and prevention of school adjustment problems, to describe emergent, needed roles for school psychologists. The later include: systematic screening of primary graders and parent interviewing to further early detection; consultation with teachers and other school personnel; and recruitment, training, and supervision of nonprofessional help-agents. Such roles bring early effective services to many children, in ways that optimize their educational and personal development.     

Evidence for direct visual access to letter identities

Subjects were presented with two letters from the set BCDFGHLNPORTVZ, one in upper case and one in lower case. Subjects were required to decide, as quickly as possible, whether the two letters on each trial were the same (e.g., Bb) or different (e.g., Bd). Because letters were always physically different, subjects presumably must name the letters in order to respond. Reaction times were predicted by the visual similarity of the letters, and not by their phonemic distinctive feature similarity. Consistent with previous work showing that a word's meaning can be assessed directly from visual information, the findings suggest that visual analysis of a capital or small letter can result in knowing the latter name without further linguistic processing. These results were interpreted as an example of automatic detection as described by Schneider and Shiffrin (1977).     

Do causal attributions mediate the effects of extrinsic rewards on intrinsic interest?

Many investigators have demonstrated that task-contingent extrinsic incentives can reduce an individual's interest in some intrinsically rewarding task. Although it has been widely assumed that this “undermining effect” is mediated by the individual's causal attributions for engaging in the task, there has been little independent verification of this notion. In the present study subjects were asked to perform an inherently interesting problem-solving task. Half of the subjects were told that they could earn money by solving the task successfully (Money condition), whereas the other half were not (Control condition). Consistent with previous research, Money condition subjects expressed less liking for the task. In addition, Many condition participants attributed their task performance to less internal causes. Furthermore, across conditions, subjects who attributed their behavior to less internal causes were less apt to enjoy the task. The present data, therefore, more convincingly implicate the mediating role of causal attributions in the relationship between extrinsic rewards and intrinsic interest. Alternative explanations are discussed.     

Language comprehension in old age

Three experiments examined the effects of aging on comprehension of spoken language. Integrative and constructive aspects of comprehension showed much more marked age-related deficits than registration of surface meaning. Experiment 1 showed that old subjects had difficulty in making inferences based on presented facts. Experiment 2 revealed a similar deficit in old people's ability to detect anomalies in newly presented information by reference to prior everyday knowledge. And Experiment 3, which tested story recall, showed that old subjects were less well able to extract and retain gist information than younger subjects. These difficulties are interpreted as reflecting a limitation in processing capacity such that the demands of concurrently registering surface meaning and simultaneously carrying out integrative and constructive processes exceed capacity in old age.     

Children's recall of contextually integrable and nonintegrable episodic events

The hypothesis of this study is that children's deficiency in encoding input information may be attributed partially to a failure to fully integrate target and contextual information. Second and fourth grade children and college adults were shown sentences varying in internal integrability in a cued recall task for target nouns in the sentences. The sentences were internally semantically Congruous, Incongruous, or Anomalous. In acquisition, the subjects were told either to read the sentences (Read Encoding) or to rate the likelihood of the occurrence of the sentential event (Integration Encoding). The results showed large developmental differences in both levels of recall and the Congruity effect (superior recall for the Congruous relative to the Anomalous sentences) in the Read condition. These differences were minimized in the Integration condition. These patterns suggest young children are deficient in the contextual integration of episodic events, and, as a result, make inefficient use of semantic information in the encoding of input information.     

Procedural knowledge versus fact retrieval in mental arithmetic: A reply to Baroody

Based on a review of reaction time studies, a model of mental arithmetic performance which emphasizes the process of fact retrieval from organized memory representations was proposed (M. H. Ashcraft, Developmental Review, 1982, 2, 213–236). In contrast to this view A. J. Baroody (Developmental Review, 1983, 3, 225–230) proposes that most mental arithmetic performance depends on procedural knowledge such as rules, heuristics, and principles. While Baroody's idea is both intriguing and potentially important, its exposition is quite vague and speculative. Without concrete suggestions as to the nature of the proposed rules and heuristics, especially for routine problems like 4 + 3 and 8 × 5, Baroody's proposal appears to be pertinent only to special cases like N + 0 and N + 1. Lacking this sort of elaboration, the alternative does not provide a useful or compelling explanation of the existing Chronometric results, and seems, at best, to be premature.