The eye of the retriever: developing episodic memory mechanisms in preverbal infants assessed through pupil dilation

Studying memory in infants can be challenging, as they cannot express their subjective recollection verbally. In this study we use a novel method with which we can assess episodic recognition memory through pupillometry, using identical procedures and stimuli for infants and adults. In three experiments of 4‐ and 7‐month‐old infants, and adults we show that the adult pupillary response is larger to previously seen than to never seen items (old/new effect). Pupil dilations index subjective memory experience in adults, producing distinct pupil dilations to items judged as remembered, familiar, and new, regardless of actual previous exposure (Experiment 1). Seven‐month‐old infants demonstrate a clear pupillary old/new effect, very similar to that of adults (Experiment 2), whereas 4‐month‐olds do not demonstrate such an effect (Experiment 3). Our findings suggest that the mnemonic mechanisms that serve infants' and adults' episodic recognition memory are more similar than previously asserted: they are not fully developed at 4 months of age but that there is contiguity in human episodic memory development from 7 months of age.     

Effectiveness of dialectical behaviour therapy for borderline personality disorder in an inpatient setting

This study evaluates the effectiveness of dialectical behaviour therapy (DBT) for borderline personality disorder (BPD) in an unselected, comorbid population seeking 3-month inpatient treatment. We studied 50 consecutively admitted individuals (44 women, six men) with BPD as defined by DSM-IV at three time points (at admission, at discharge, and at the 15-month follow-up). For the clinical diagnoses, we used the Structured Clinical Interview for DSM-IV (SCID) and compared the frequencies of comorbid axis I and axis II disorders at admission and at the 15-month follow-up. Overall, participants showed a high degree of comorbidity. Psychopathology was significantly reduced at post-treatment and at follow-up. Effect sizes for outcome measures were within the range of those of previous studies. Our findings support the notion that the results of the DBT efficacy research can be generalized to an inpatient setting and to patients with BPD disorder with high comorbidity.     

Cross and trophy

Crosses and trophies are twin images in the Roman visual world of the first century CE, omnipresent as signposts of imperial power over the bodies and minds of the conquered. While crosses expose armour-less human bodies to torturous dying, the cruciform trophies are the body-less armour of an already dead enemy. Both are images of triumph and merciless retaliation against the non-compliant. Seen through the lens of the trophy, Paul's theology of cross and justification by faith emerges as a resistant messianic counter-visualization, as the body of the crucified empowers a rebellious re-embodiment of the dis-embodied.     

Relevant dimensions of cyberbullying — Results from two experimental studies

Cyberbullying is a prevalent problem of adolescents. However, several conceptual and measurement questions, regarding its defining characteristics and relevant dimensions in comparison to conventional bullying, remain unanswered. To this end we conducted two studies with experimental methods. Study I shows that power imbalance in terms of perceived popularity is relevant for the affective, cognitive, and behavioral experience of cyberbullying. Cyberbullying by a popular bully is more distressing than cyberbullying by an unpopular bully. Study II shows that factors unique to cyberbullying are also relevant for the experience of cyberbullying, namely the media and the type of cyberbullying. For example, different types of cyberbullying are related to different patterns of relevant coping strategies. Therefore, cyberbullying seems both a unique phenomenon and closely related to conventional bullying.     

Distance distortions in children's cognitive maps: an examination of the information storage model

Second graders (mean age = 7-8), fourth graders (mean age = 9-8), and sixth graders (mean age = 11-11) walked two paths located in and around their school. Children in the Unsegmented condition estimated the distance and time taken to walk a path that was relatively undifferentiated in terms of the number of qualitatively different areas of the school through which it passed. Children in the Segmented condition made the same estimates for a path that went through different areas (segments) of the school (i.e., cafeteria, hall, vestibule, and outside the building). Children at all three grade levels estimated that the distance traversed in the Segmented condition was longer than the distance in the Unsegmented condition. This difference was not significant on the time measure. It was concluded that (1) paths with a large number of segments are perceived as being longer than paths of the same length with fewer segments, (2) distances along paths with few segments are underestimated, (3) distances along paths with many segments may be overestimated as a function of developmental level, and (4) only younger children may have used time to estimate distance.     

Using elaborative interrogation to facilitate acquisition of factual information in cooperative learning settings: One good strategy deserves another

The primary purpose of this study was to determine whether providing 6th-grade students with cooperative elaborative interrogation instruction would facilitate learning relative to providing them with cooperative learning, elaborative interrogation or reading-for-under-standing instructions. All students were presented with 36 factual statements about six animals. Cooperative elaborative interrogation students were instructed to work collaboratively and use their prior knowledge to state why each fact is true. Cooperative learning students were told to work collaboratively to learn target materials, while elaborative interrogation students were instructed to generate answers to the why questions on their own. Reading-control students were also on their own and instructed to read the animal facts for understanding. For immediate free recall and immediate associative matching tests, students in the experimental conditions outperformed those in the control condition. Cooperative elaborative interrogation and elaborative interrogation students maintained this advantage on a 30-day follow-up associative matching test, with elaborative interrogation students maintaining a significant advantage relative to reading controls on a 60-day associative matching follow-up. (There was also a strong trend favouring the cooperative elaborative interrogation condition on this 60-day measure.) The quality of the ‘why’ answer affected learning: Generating and listening to scientifically correct answers that used relevant prior knowledge to clarify target information was associated with better memory for facts than were other types of study responses. Students in this study learned the most when they were explicitly directed to activate relevant prior knowledge that supports and clarifies new information–processing that occurs following either small-group or individual elaborative interrogation instruction.