Imitation as a Learning Strategy during Sibling Teaching

ABSTRACT

The sibling relationship represents a unique bond characterized by a high degree of closeness and intimacy, which fosters teaching and learning. Two studies investigated associations between sibling-directed teaching, imitation as a learning strategy, and learner involvement during a semi-structured, video-taped construction task. Study 1 also examined associations with the teacher’s Theory of Mind (ToM) abilities; Study 2 focused on associations with birth order and sibling relationship quality. In both studies, siblings ranged from preschool-age to the cusp of middle childhood (Study 1 n = 61; Study 2 n = 72). Findings across both studies indicated that learners engaged in significantly more nonverbal than verbal imitation and imitation was predominately immediate and not deferred. Teachers responded to both verbal and nonverbal learner imitation positively, corrected, or did not respond. In Study 1, learner task involvement was predicted by learner age and nonverbal imitation, while teaching strategies that were positively related to the teacher’s ToM abilities were associated with learner imitation. In Study 2, younger siblings’ reports of a positive sibling relationship were significantly associated with learner imitation. Birth order differences were only evident for younger (but not older) sibling learner imitation and task involvement. Findings are discussed in light of relationships and social constructivist theories of development.     

Searching for the Self: An Identity Control Theory Approach to Triggers of Occupational Exploration

Identity control theory researchers have found evidence for two processes of identity development (identity defense and identity change) and have theorized a third process (identity exploration). College students (N = 123) self-rated as high or low in occupational identity certainty and importance received self-discrepant feedback to induce identity disturbance, and dependent measures of identity defense, identity change, and identity exploration were obtained. As predicted, high certainty about identity standards led to identity defense, while low certainty led to identity change. Although an interaction between certainty and importance was hypothesized to predict identity exploration, results showed that the two operated independently. Low certainty predicted exploration of additional occupational areas, whereas high importance predicted exploration of self, environment, and additional occupational areas.     

Greater priming for previously distracting information in young than older adults when suppression is ruled out

The use of previously distracting information on memory tests with indirect instructions is usually age-equivalent, while young adults typically show greater explicit memory for such information. This could reflect qualitatively distinct initial processing (encoding) of distracting information by younger and older adults, but could also be caused by greater suppression of such information by younger adults on tasks with indirect instructions. In Experiment 1, young and older adults read stories containing distracting words, which they ignored, before studying a list of words containing previously distracting items for a free recall task. Half the participants were informed of the presence of previously distracting items in the study list prior to recall (direct instruction), and half were not (indirect instruction). Recall of previously distracting words was age-equivalent in the indirect condition, but young adults recalled more distracting words in the direct condition. In Experiment 2, participants performed the continuous identification with recognition task, which captures a measure of perceptual priming and recognition on each trial, and is immune to suppression. Priming and recognition of previously distracting words was greater in younger than older adults, suggesting that the young engage in more successful suppression of previously distracting information on tasks in which its relevance is not overtly signaled.     

Exploring the Causes of Subjective Well-Being: A Content Analysis of Peoples’ Recipes for Long-Term Happiness

This study set out to explore conceptions of the elements or ingredients that lead to long-lasting happiness. A content analysis (Smith in Handbook of research methods in social and personality psychology. Cambridge University Press, Cambridge, 2000; Weber 1990) coded 201 respondents’ (18–84 years old) written happiness recipes for the mention of a priori (pre-defined from a literature review) and empirical (from a pilot study) content analysis categories. These were organized into six dimensions (i.e. Personality, Circumstances, Social Relationships, Behavioral Activities, Cognitive Activities and Volitional Activities) based on a model of the causes of long-term happiness (Lyubomirsky et al. in Rev Gen Psychol 9(2):111–131, 2005b). Participants were happy and mentally healthy. An overwhelming majority of responses referred to Social Relationships such as with Family, Friends and Partners, supporting the assertion that relationships are necessary for happiness (Diener and Oishi in Psychol Inquiry 16(4):162–167, 2005; Diener and Seligman in Psychol Sci Public Interest 5(1):1–32, 2002). Participants frequently mentioned Circumstances such as Health despite the fact these have been found to have a minimal influence over long-term happiness (Argyle in The foundations of hedonic psychology. Russel Sage Foundation, New York, 1999). Respondents mentioned a variety of New Behavioral Activities (e.g. time in Nature) that could offer a list of active leisure pursuits for use in happiness interventions. Finally, participants spoke of the importance of Social Values and having a Philosophy of Life (New Cognitive Activities). A recipe for long-term happiness is proposed based on past and current findings.     

Inhibition and working memory in young preschool children with symptoms of ADHD and/or oppositional-defiant disorder

Background: Early symptoms of attention deficit/hyperactivity disorder (ADHD) and oppositional-defiant disorder (ODD) are associated with deficits in cognitive self-regulatory processes or executive functions (EF)s. However, the hypothesis that neurocognitive deficits underlying the two disorders are already evident during early preschool years still has limited empirical support. The present study investigated associations between symptoms of ADHD and/or ODD and two core EFs, inhibition and working memory, in a large nonclinical sample of 3-year old children. Method: Participants were 1045 children (554 boys, age 37–47 months), recruited from the population based Norwegian Mother and Child Cohort Study (MoBa). Relations between behavioral symptoms and measures of inhibition and working memory were studied both categorically and dimensionally. Results: Children with co-occurring symptoms of ADHD and ODD performed at a significantly lower level than typically developing children in 4 out of 5 EF measures. Symptoms of ADHD, both alone and in combination with ODD, were associated with reduced performance on tests of inhibition in the group comparisons. Dimensional analyses showed that performance within both EF domains contributed to variance primarily in ADHD symptom load. The associations between test results and behavioral symptoms remained significant after gender and verbal skills had been controlled. Conclusion: Young preschoolers show the same pattern of relations between EF and behavioral symptoms of ADHD and/or ODD as previously described in older children diagnosed with ADHD and/or ODD. Effect sizes were generally small, indicating that measures of EF have limited clinical utility at this stage in development.     

The eyes grasp,the hands see: Metric category knowledge transfers between vision and touch

Categorization of seen objects is often determined by the shapes of objects. However, shape is not exclusive to the visual modality: The haptic system also is expert at identifying shapes. Hence, an important question for understanding shape processing is whether humans store separate modality-dependent shape representations, or whether information is integrated into one multisensory representation. To answer this question, we created a metric space of computer-generated novel objects varying in shape. These objects were then printed using a 3-D printer, to generate tangible stimuli. In a categorization experiment, participants first explored the objects visually and haptically. We found that both modalities led to highly similar categorization behavior. Next, participants were trained either visually or haptically on shape categories within the metric space. As expected, visual training increased visual performance, and haptic training increased haptic performance. Importantly, however, we found that visual training also improved haptic performance, and vice versa. Two additional experiments showed that the location of the categorical boundary in the metric space also transferred across modalities, as did heightened discriminability of objects adjacent to the boundary. This observed transfer of metric category knowledge across modalities indicates that visual and haptic forms of shape information are integrated into a shared multisensory representation.     

Effects of Early Maternal Separation on Subsequent Reproductive and Behavioral Outcomes in Male Rats

To investigate effects of maternal separation on reproductive and behavioral outcomes, male Wistar rats were separated from their mothers daily for 3 hr (maternal separation; MS) or 0 hr (control) from postnatal day (PND) 1 to 14. Timing of puberty, reproductive parameters, hormone levels, and aggressive behaviors in juvenile and adult rats were examined. Contrary to expectations, there was no effect of maternal separation on any measure of aggression. However, maternal separation altered peripubertal testosterone secretion and increased mean day of preputial separation. In addition, adult MS males demonstrated less total sexual behavior. There was no difference in sperm counts or testosterone levels at necropsy on PND 56 or in adulthood, but seminal vesicle weights were increased in adult MS rats. These results suggest that early life stress may influence hypothalamic-pituitary-gonadal axis development in males, at least during peripuberty.     

Linking Peer Victimization to the Development of Depressive Self-Schemas in Children and Adolescents

Previous theory and research suggest that childhood experiences are more likely to generate depressive self-schemas when they focus attention on negative information about oneself, generate strong negative affect, and are repetitive or chronic. Persistent peer victimization meets these criteria. In the current study, 214 youths (112 females) with empirically-validated histories of high or low peer victimization completed self-report measures of negative and positive self-cognitions as well as incidental recall and recognition tests following a self-referent encoding task. Results supported the hypothesis that depressive self-schemas are associated with peer victimization. Specifically, peer victimization was associated with stronger negative self-cognitions, weaker positive self-cognitions, and an elimination of the normative memorial bias for recall of positive self-referential words. Effects were stronger for relational and verbal victimization compared to physical victimization. Support accrues to a model about the social-developmental origins of cognitive diatheses for depression.     

Financial deprivation selectively shifts moral standards and compromises moral decisions

Previous research suggests people firmly value moral standards. However, research has also shown that various factors can compromise moral behavior. Inspired by the recent financial turmoil, we investigate whether financial deprivation might shift people’s moral standards and consequently compromise their moral decisions. Across one pilot survey and five experiments, we find that people believe financial deprivation should not excuse immoral conduct; yet when people actually experience deprivation they seem to apply their moral standards more leniently. Thus, people who feel deprived tend to cheat more for financial gains and judge deprived moral offenders who cheat for financial gains less harshly. These effects are mediated by shifts in people’s moral standards: beliefs in whether deprivation is an acceptable reason for immorality. The effect of deprivation on immoral conduct diminishes when it is explicit that immoral conduct cannot help alleviate imbalances in deprived actors’ financial states, when financial deprivation seems fair or deserved, and when acting immorally seems unfair.