Moral reasoning,emotion understanding,and callous-unemotional traits in early-to-middle childhood

Relatively little is known about features of moral reasoning among young children with callous-unemotional (CU) traits (e.g., lack of guilt and empathy). This study tested associations between CU traits and emotion attributions (i.e., identification of others’ emotional states) and justifications (i.e., explanations for those emotional states), across social scenarios involving discreet versus salient distress cues. The participants were boys aged 6-to-10 years (N = 50; M_age = 7 years 7 months), who were interviewed about 12 hypothetical scenarios (eight with discreet and four with salient distress cues). Regression models indicated that CU traits, in interaction with high levels of antisocial behaviour, were associated with reduced emotion attributions of fear in discreet but not salient immoral scenarios. Higher CU traits were also associated with reduced justifications referencing others’ welfare in discreet scenarios, and increased references to action-orientated justifications in salient scenarios. These findings suggest that CU traits are associated with early moral reasoning impairments and that salience of distress may be important to these processes.     

Mental Models of the Day/Night Cycle

This article presents the results of an experiment which investigated elementary school children's explanations of the day/night cycle. First, third, and fifth grade children were asked to explain certain phenomena, such as the disappearance of the sun during the night, the disappearance of stars during the day, the apparent movement of the moon, and the alteration of day and night. The results showed that the majority of the children in our sample used in a consistent fashion a small number of relatively well-defined mental models of the earth, the sun, and the moon to explain the day/night cycle. These mental models of the day/night cycle were empirically accurate, logically consistent and revealed some sensitivity on the part of the children to issues of simplicity of explanation. The younger children formed Initial mental models which provided explanations of the day/night cycle based on everyday experience (e.g., the sun goes down behind mountains, clouds cover up the sun). The older children constructed synthetic mental models (e.g., the sun and the moon revolve around the stationary earth every 24 hours; the earth rotates in an up/down direction and the sun and moon are fixed on opposite sides) which represented attempts to synthesize the culturally accepted view with aspects of their Initial models. A few of the older children appeared to have constructed a mental model of the day/night cycle similar to the scientific one. A theoretical framework is outlined which explains the formation of initial, synthetic, and scientific models of the day/night cycle in terms of the reinterpretation of a hierarchy of constraints, some of which are present early in the child's life, and others which emerge later out of the structure of the acquired knowledge.     

Lexical Representation of Gender: A Quasiregular Domain

The relationship between gender and word ending in French is a quasiregular one (e.g., most words ending in -ette are feminine, but not all). As such, the gender of low-frequency irregular forms (e.g., squelette, which is masculine) should take longer to classify than low-frequency regular forms according to neural network models. A regularity effect was found in Experiment 1, but it did not interact with word frequency. It was further revealed that there was difficulty in making gender decisions (Experiment 2) and gender verification responses (Experiment 3) to words whose endings were highly informative of gender, but whose associated article was not. These words were place names beginning with a vowel, like Australie, which do not take an indefinite article and whose definite article is ambiguous (1'). How a neural network might handle these results is discussed, and an alternative account is considered whereby there are two potential sources of gender information, lexical and nonlexical, with the latter being used to confirm the former.     

The Validity of the Rorschach and the Minnesota Multiphasic Personality Inventory: Results from Meta-Analyses

Results from meta-analyses have been widely cited to defend the validity of the Rorschach. However, the meta-analyses have been flawed. For example, one meta-analysis included results that were obtained by calculating correlations but not results that were obtained by conducting t tests or analyses of variance. When we reanalyzed the data from the most widely cited meta-analysis (Parker, Hanson, & Hunsley, 1988), we found that for confirmatory studies (also called convergent-validity studies), the Minnesota Multiphasic Personality Inventory (MMPI) explained 23% to 30% of the variance, whereas the Rorschach explained only 8% to 13% of the variance. These results indicate that the Rorschach is not as valid as the MMPI.     

Fruitful Interchange or Polite Chitchat? The Dialogue Between Science and Theology

The demand that epistemic support be explicated as rational compulsion has consistently undermined the dialogue between theology and science. Rational compulsion entails too restrictive a form of epistemic support for most scientific theorizing, let alone interdisciplinary dialogue. This essay presents a less restrictive form of epistemic support, explicated not as rational compulsion but as explanatory power. Once this notion of epistemic support is developed, a genuinely productive interdisciplinary dialogue between theology and science becomes possible. This essay closes by sketching how the Big Bang model from cosmology and the Christian doctrine of Creation can be viewed as supporting each other.     

Cornell College: Program in Science and Religion

Cornell College in Mount Vernon, Iowa, has established a new interdisciplinary program in science and religion. One of the features of this program is an undergraduate major in science and religion that requires substantial course work in at least one of the natural sciences as well as course work in philosophy, religion, and history. As a result of a grant from the John Templeton Foundation, Cornell College will offer a special course, God and Physics: From Aquinas to Quantum Mechanics (April 1998), and will sponsor an international symposium on creation and contemporary cosmology (April 1999). Opportunities exist for interested scholars to come to Cornell as Templeton Visiting Fellows in order to participate in these activities.     

When to Self-Correct?: A Comparison of Two Procedures on Spelling Performance

We compared the effects of two self-correction procedures on the spelling performance of 5 elementary school students with learning disabilities. Previous studies consistently have demonstrated self-correction to be more effective than traditional approaches to spelling instruction. However, we could find no single-subject design experiments analyzing the procedural details of how or when self-correction should be conducted to be most effective. For 4 days each week students practiced a list of 20 spelling words by listening to an audiotape on which the weekly list was dictated and writing the words. For half of each week's words, students checked and self-corrected after attempting each word; for the other half of the list, the students self-corrected after attempting all 10 words. An alternating treatments design showed self-correction after each word to be more effective for acquisition of new spelling words as measured by end-of-the-week tests for all 5 students, and maintenance of previously studied spelling words as measured by 1-week maintenance tests for 4 of the 5 students.     

Presentation modality affects false memory

Roediger and McDermott (1995) rejuvenated interest in Deese’s (1959) paradigm for producing reliable intrusions and false alarms. Using this paradigm in three experiments, we demonstrated that visual study presentation dramatically reduces the rate of false memories. Only auditory study presentation resulted in equal production of studied and critical items. Correct recall and recognition were unaffected. The suggestion that visual presentation provides a means for discriminating between false and true memories was supported by Experiment 3: Pleasantness rating of study items significantly reduced the creation of false memories regardless of modality.     

Structural Stability within the Lateral Cerebellar Nucleus of the Rat Following Complex Motor Learning

Complex motor learning, but not mere motor activity, has been previously shown to induce structural modifications within the cerebellar cortex. The present experiment examined whether similar changes occur within one of the primary output targets of the region of the cerebellar cortex in which these structural changes were described, the lateral cerebellar nucleus (LCN; dentate nucleus). Adult female rats were randomly allocated to one of three training conditions. Acrobatic condition (AC) rats were trained to complete a complex motor learning task consisting of a series of elevated obstacles while motor control (MC) condition animals were forced to traverse a flat obstacle-free runway equal in length to the AC task. Inactive condition (IC) animals received no motor training. Unbiased stereological techniques and electron microscopy were used to obtain estimates of synapse number and postsynaptic density (PSD) length within the LCN. Results showed that neither synapse number nor PSD length was significantly altered as a function of training condition. These results indicate that complex motor skill learning is associated with structural plasticity within the cerebellar cortex and with structural stability within the lateral cerebellar nucleus.