“I'm an ogre so I'm very hungry!” “I'm assistant ogre”: The Social Function of Sibling Imitation in Early Childhood

Siblings' imitative behaviors were investigated in 39 middle‐class dyads during six 90‐min home sessions at both Time 1 (M age: older sibling = 4.4 years; younger sibling = 2.4 years) and Time 2 (2 years later). Although younger siblings imitated most often at T1 and T2, older siblings' imitation increased proportionally over time in comparison to younger siblings. Findings highlight the affiliative nature of imitation that occurred during reciprocal play interactions, via positive responses, and the content of the imitation. Finally, age was controlled by comparing first‐born siblings aged 4 at T1 to second‐born siblings aged 4 at T2. Findings demonstrated that sibling imitation had distinct characteristics despite the age match and partner effects. Sibling imitation is a dynamic, interactive social behavior and may be a powerful source of learning for young children.

Highlights

• The role of sibling imitation in ongoing play in early childhood is highlighted.
• Sibling imitation is a dynamic and affiliative behavior that promotes interaction during play.
• Naturalistic observations of sibling imitation document that it is a powerful source of learning for young children.

     

Test-induced priming impairs source monitoring accuracy in the DRM procedure

Three experiments investigated the effects of test-induced priming (TIP) on false recognition in the Deese/Roediger-McDermott procedure (Deese, 1959; Roediger & McDermott, 1995). In Experiment 1, TIP significantly increased false recognition for participants who made old/new decisions at test but not for participants who made remember/know judgments or were given diagnostic information to help them avoid false recognition. In Experiment 2, a TIP effect was observed with old/new recognition but not when participants were required to remember whether study items were spoken by a male or a female speaker. In Experiment 3, false recognition increased when critical lures were preceded by 10 studied items but not when preceded by 5 studied and 5 unstudied items from the same list. These findings suggest that TIP increases false recognition by disrupting source monitoring processes.     

How can careproviders most help patients during a disaster?

This article reviews careproviders' most difficult emotional challenges during disasters and provides approaches for responding optimally to them. It describes key approaches that careproviders may pursue to best help patients and others during a catastrophe. It raises unanswered questions regarding when, if ever, careproviders should provide active euthanasia to patients who are incompetent, and when, if ever, careproviders should give their own food and water to patients or others who may otherwise soon die without them.     

Investigating the Uniqueness and Usefulness of Proactive Personality in Organizational Research: A Meta-Analytic Review

Using meta-analysis (283 effect sizes from 122 studies), we extend prior qualitative and quantitative reviews of research on proactive personality in a number of meaningful ways. First, we examine the discriminant and incremental validity of proactive personality using meta-analytic regression analyses. Our results reveal that more than 50% of variance in proactive personality is unrelated to the Big Five personality traits collectively. Also, proactive personality accounts for unique variance in overall job performance, task performance, and organizational citizenship behaviors, even after controlling for the Big Five personality traits and general mental ability (for overall job performance and task performance). Moreover, we find no subgroup differences in proactive personality, highlighting its potential use in selection contexts. In conclusion, we discuss implications of our findings for research and practice.     

Mood-congruent true and false memory: Effects of depression

The Deese/Roediger-McDermott paradigm was used to investigate the effect of depression on true and false recognition. In this experiment true and false recognition was examined across positive, neutral, negative, and depression-relevant lists for individuals with and without a diagnosis of major depressive disorder. Results showed that participants with major depressive disorder falsely recognised significantly more depression-relevant words than non-depressed controls. These findings also parallel recent research using recall instead of recognition and show that there are clear mood congruence effects for depression on false memory performance.     

Emotional true and false memories in children with callous-unemotional traits

Several studies have found that children with callous-unemotional (CU) traits have a deficit in processing emotionally negative material. The present study examined whether this deficit also affects emotional memory. Twenty-two children with low CU traits and 24 children with high CU traits between 8 and 12 years of age were selected from a community sample and presented with neutral and negative emotional words, using the Deese–Roediger–McDermott paradigm. On true recall, there was no difference between the groups. Both groups had higher true recall rates for the neutral word lists than for the negative lists. However, on false recall, although there were no group differences for neutral word lists, the high CU group recalled significantly fewer critical lures on the negative word lists than the low CU group. Furthermore, the high CU group had significantly less false recall on the negative word lists compared to the neutral word lists, while the low CU group showed no difference in false recall between the word lists. These results indicate that children with high CU traits have no deficiencies in true memory performance, yet are less susceptible to developing false memories concerning emotionally negative material.