Mental Spatial Transformations in 14‐ and 16‐Month‐Old Infants: Effects of Action and Observational Experience

Infants' ability to mentally track the orientation of an object during a hidden rotation was investigated (N = 28 in each experiment). A toy on a turntable was fully covered and then rotated 90°. When revealed, the toy had turned with the turntable (probable event), remained at its starting orientation (improbable event in Experiment 1), or turned to the opposite side (improbable event in Experiment 2). Results demonstrated a developmental progression between 14 and 16 months of age in infants' sensitivity to spatial object relations and their ability to track the orientation of an object during hidden rotation. Experiment 3 showed that 14‐month‐olds' performance improved with hands‐on training, highlighting the role of action experience in cognitive development.     

Visual Short‐Term Memory for Complex Objects in 6‐ and 8‐Month‐Old Infants

Infants' visual short‐term memory (VSTM) for simple objects undergoes dramatic development: Six‐month‐old infants can store in VSTM information about only a simple object presented in isolation, whereas 8‐month‐old infants can store information about simple objects presented in multiple‐item arrays. This study extended this work to examine the development of infants' VSTM for complex objects during this same period (N = 105). Using the simultaneous streams change detection paradigm, Experiment 1 confirmed the previous developmental trajectory between 6 and 8 months. Experiment 2 showed that doubling the exposure time did not enhance 6‐month‐old infants' change detection, demonstrating that the developmental change is not due to encoding speed. Thus, VSTM for simple and complex objects appears to follow the same developmental trajectory.     

Perceptual Learning: 12‐Month‐Olds’ Discrimination of Monkey Faces

Six‐month‐olds reliably discriminate different monkey and human faces whereas 9‐month‐olds only discriminate different human faces. It is often falsely assumed that perceptual narrowing reflects a permanent change in perceptual abilities. In 3 experiments, ninety‐six 12‐month‐olds’ discrimination of unfamiliar monkey faces was examined. Following 20 s of familiarization, and two 5‐s visual‐paired comparison test trials, 12‐month‐olds failed to show discrimination. However, following 40 s of familiarization and two 10‐s test trials, 12‐month‐olds showed reliable discrimination of novel monkey faces. A final experiment was performed demonstrating 12‐month‐olds’ discrimination of the monkey face was due to the increased familiarization rather than increased time of visual comparison. Results are discussed in the context of perceptual narrowing, in particular the flexible nature of perceptual narrowing.     

Being Mimicked Increases Prosocial Behavior in 18‐Month‐Old Infants

Most previous research on imitation in infancy has focused on infants' learning of instrumental actions on objects. This study focused instead on the more social side of imitation, testing whether being mimicked increases prosocial behavior in infants, as it does in adults (van Baaren, Holland, Kawakami, & van Knippenberg, 2004). Eighteen‐month‐old infants (N = 48) were either mimicked or not by an experimenter; then either that experimenter or a different adult needed help. Infants who had previously been mimicked were significantly more likely to help both adults than infants who had not been mimicked. Thus, even in infancy, mimicry has positive social consequences: It promotes a general prosocial orientation toward others.     

Limited Fine Motor and Grasping Skills in 6‐Month‐Old Infants at High Risk for Autism

Atypical motor behaviors are common among children with autism spectrum disorders (ASD). However, little is known about onset and functional implications of differences in early motor development among infants later diagnosed with ASD. Two prospective experiments were conducted to investigate motor skills among 6‐month‐olds at increased risk (high risk) for ASD (N₁ = 129; N₂ = 46). Infants were assessed using the Mullen Scales of Early Learning (MSEL) and during toy play. Across both experiments, high‐risk infants exhibited less mature object manipulation in a highly structured (MSEL) context and reduced grasping activity in an unstructured (free‐play) context than infants with no family history of ASD. Longitudinal assessments suggest that between 6 and 10 months, grasping activity increases in high‐risk infants.     

Visual Attention to Global and Local Stimulus Properties in 6‐Month‐Old Infants: Individual Differences and Event‐Related Potentials

Event‐related potentials (ERPs) were utilized in an investigation of 21 six‐month‐olds’ attention to and processing of global and local properties of hierarchical patterns. Overall, infants demonstrated an advantage for processing the overall configuration (i.e., global properties) of local features of hierarchical patterns; however, processing advantages were found to vary based on individual differences in look duration. Short‐looking infants showed differences in the negative central ERP component and the late slow wave (LSW) indicating greater attention to and discrimination of changes in global properties. Analysis of the LSW revealed that long‐looking infants discriminated changes in local features, but did not discriminate changes in global properties of visual stimuli. These findings indicate that short‐ and long‐looking infants utilize different approaches when processing hierarchical patterns.     

Mental Rotation With Tangible Three‐Dimensional Objects: A New Measure Sensitive to Developmental Differences in 4‐ to 8‐Year‐Old Children

There is an emerging consensus that spatial thinking is fundamental to later success in math and science. The goals of this study were to design and evaluate a novel test of three‐dimensional (3D) mental rotation for 4‐ to 8‐year‐old children (N = 165) that uses tangible 3D objects. Results revealed that the measure was both valid and reliable and indicated steady growth in 3D mental rotation between the ages of 4 and 8. Performance on the measure was highly related to success on a measure of two‐dimensional (2D) mental rotation, even after controlling for executive functioning. Although children as young as 5 years old performed above chance, 3D mental rotation appears to be a difficult skill for most children under the age of 7, as indicated by frequent guessing and difficulty with mirror objects. The test is a useful new tool for studying the development of 3D mental rotation in young children.     

Selective Imitation of In‐Group Over Out‐Group Members in 14‐Month‐Old Infants

Recent research has shown that infants are more likely to engage with in‐group over out‐group members. However, it is not known whether infants' learning is influenced by a model's group membership. This study investigated whether 14‐month‐olds (N = 66) selectively imitate and adopt the preferences of in‐group versus out‐group members. Infants watched an adult tell a story either in their native language (in‐group) or a foreign language (out‐group). The adult then demonstrated a novel action (imitation task) and chose 1 of 2 objects (preference task). Infants did not show selectivity in the preference task, but they imitated the in‐group model more faithfully than the out‐group model. This suggests that cultural learning is beginning to be truly cultural by 14 months of age.     

Development of Phonological Constancy: 19‐Month‐Olds,but Not 15‐Month‐Olds,Identify Words in a Non‐Native Regional Accent

By 12 months, children grasp that a phonetic change to a word can change its identity (phonological distinctiveness). However, they must also grasp that some phonetic changes do not (phonological constancy). To test development of phonological constancy, sixteen 15‐month‐olds and sixteen 19‐month‐olds completed an eye‐tracking task that tracked their gaze to named versus unnamed images for familiar words spoken in their native (Australian) and an unfamiliar non‐native (Jamaican) regional accent of English. Both groups looked longer at named than unnamed images for Australian pronunciations, but only 19‐month‐olds did so for Jamaican pronunciations, indicating that phonological constancy emerges by 19 months. Vocabulary size predicted 15‐month‐olds' identifications for the Jamaican pronunciations, suggesting vocabulary growth is a viable predictor for phonological constancy development.     

24‐Month‐Old Children With Larger Oral Vocabularies Display Greater Academic and Behavioral Functioning at Kindergarten Entry

Data were analyzed from a population‐based, longitudinal sample of 8,650 U.S. children to (a) identify factors associated with or predictive of oral vocabulary size at 24 months of age and (b) evaluate whether oral vocabulary size is uniquely predictive of academic and behavioral functioning at kindergarten entry. Children from higher socioeconomic status households, females, and those experiencing higher quality parenting had larger oral vocabularies. Children born with very low birth weight or from households where the mother had health problems had smaller oral vocabularies. Even after extensive covariate adjustment, 24‐month‐old children with larger oral vocabularies displayed greater reading and mathematics achievement, increased behavioral self‐regulation, and fewer externalizing and internalizing problem behaviors at kindergarten entry.     

Infants’ and Young Children's Imitation of Linguistic In‐Group and Out‐Group Informants

Although children can use social categories to intelligently select informants, children's preference for in‐group informants has not been consistently demonstrated across age and context. This research clarifies the extent to which children use social categories to guide learning by presenting participants with a live or video‐recorded action demonstration by a linguistic in‐group and/or out‐group model. Participants’ (N = 104) propensity to imitate these actions was assessed. Nineteen‐month‐olds did not selectively imitate the actions of the in‐group model in live contexts, though in‐group preferences were found after watching the demonstration on video. Three‐year‐olds selectively imitated the actions demonstrated by the in‐group member regardless of context. These results indicate that in‐group preferences have a more nuanced effect on social learning than previous research has indicated.     

Developmental Differences in Infants’ Fairness Expectations From 6 to 15 Months of Age

The present research investigated the developmental trajectory of infants’ fairness expectations from 6 to 15 months of age (N = 150). Findings revealed a developmental transition in infants’ fairness expectations between 6 and 12 months, as indicated by enhanced visual attention to unfair outcomes of resource distribution events (a 3:1 distribution) relative to fair outcomes (a 2:2 distribution). The onset of naturalistic sharing behavior predicted infants’ fairness expectations at transitional ages. Beyond this period of developmental transition, the presence of siblings and infants’ prompted giving behavior predicted individual differences in infants’ fairness concerns. These results provide evidence for the role of experience in the acquisition of fairness expectations and reveal early individual differences in such expectations.     

Trajectories of Infants’ Biobehavioral Development: Timing and Rate of A‐Not‐B Performance Gains and EEG Maturation

This study examined how timing (i.e., relative maturity) and rate (i.e., how quickly infants attain proficiency) of A‐not‐B performance were related to changes in brain activity from age 6 to 12 months. A‐not‐B performance and resting EEG (electroencephalography) were measured monthly from age 6 to 12 months in 28 infants and were modeled using logistic and linear growth curve models. Infants with faster performance rates reached performance milestones earlier. Infants with faster rates of increase in A‐not‐B performance had lower occipital power at 6 months and greater linear increases in occipital power. The results underscore the importance of considering nonlinear change processes for studying infants’ cognitive development as well as how these changes are related to trajectories of EEG power.     

Effects of Traditional Versus Montessori Schooling on 4‐ to 15‐Year Old children's Performance Monitoring

Through performance monitoring individuals detect and learn from unexpected outcomes, indexed by post‐error slowing and post‐error improvement in accuracy. Although performance monitoring is essential for academic learning and improves across childhood, its susceptibility to educational influences has not been studied. Here we compared performance monitoring on a flanker task in 234 children aged 4 through 15, from traditional or Montessori classrooms. While traditional classrooms emphasize that students learn from teachers' feedback, Montessori classrooms encourage students to work independently with materials specially designed to support learners discovering errors for themselves. We found that Montessori students paused longer post‐error in early childhood and, by adolescence, were more likely to self‐correct. We also found that a developmental shift from longer to shorter pauses post‐error being associated with self‐correction happened younger in the Montessori group. Our findings provide preliminary evidence that educational experience influences performance monitoring, with implications for neural development, learning, and pedagogy.     

Accent,Language, and Race: 4–6‐Year‐Old Children's Inferences Differ by Speaker Cue

Three experiments examined 4‐ to 6‐year‐olds' use of potential cues to geographic background. In Experiment 1 (N = 72), 4‐ to 5‐year‐olds used a speaker's foreign accent to infer that they currently live far away, but 6‐year‐olds did not. In Experiment 2 (N = 72), children at all ages used accent to infer where a speaker was born. In both experiments, race played some role in children's geographic inferences. Finally, in Experiment 3 (N = 48), 6‐year‐olds used language to infer both where a speaker was born and where they currently live. These findings reveal critical differences across development in the ways that speaker characteristics are used as inferential cues to a speaker's geographic location and history.     

旋转和语义一致性对物体和背景识别的影响

在自然环境中,背景往往对识别环境中的物体起着非常重要的作用。已有研究表明物体与背景的语义一致性会影响对物体和背景的知觉。研究引入物理性质的一致性（旋转角度）这一变量,采用二因素的混合实验设计和直接命名法考察物理性质的一致性和语义一致性对物体和背景知觉的影响。结果发现,语义一致性主效应显著,在物体与背景语义一致性条件下对其进行识别的正确率高于语义不一致性条件下的识别正确率;物理性质一致性主效应也显著,物理性质一致条件下对物体和背景识别的正确率显著高于不一致性条件下的,而且,识别的正确率随着旋转角度的增大而降低;二者之间的交互作用不显著,这意味着物理性质一致性与语义一致性是独立影响真实场景中物体识别和背景识别过程的。     

‘Diff‐ability’ not ‘disability’: right‐brained thinkers in a left‐brained education system

This article draws on critical disability studies, challenging the exclusion of right‐brained thinkers from an education system designed to privilege left‐brained thinkers. It focuses on individuals who are labelled dyspraxic, providing data from qualitative interviews with adults about childhood experiences in school and the impact on their emotional well‐being and peer relationships. Utilising Ornstein's pioneering research on the bilateral specialisation of the brain and hemispheric dominance in addition to a critical disability studies theoretical framework, this article innovatively argues that the fact that education in England continues to be delivered in a logical sequential form, even 40 years after Ornstein's work, is systemic discrimination in which dyspraxic children are constructed as ‘deviant’. The article concludes by arguing that individuals with dyspraxia should be seen as having a ‘diff‐ability’ in thinking style rather than a disability and therefore recommends both change and awareness‐raising at institutional level in the education system.     

Viewing Fantastical Events Versus Touching Fantastical Events: Short‐Term Effects on Children's Inhibitory Control

Three pretest–posttest experiments were conducted to compare the effects of viewing versus interacting with either fantastical or real events on 4‐ and 6‐year‐old children's inhibitory control. Experiment 1 (N = 72) suggested that although viewing fantastical events had a negative effect on inhibitory control, interacting with them produced no such disruption. Experiment 2 (N = 17) also found that children's inhibitory control decreased after viewing fantastical events but not after interacting with them. In addition, functional near‐infrared spectroscopy (fNIRS) data showed that viewing fantastical events resulted in greater activation in the dorsolateral prefrontal cortex. Experiment 3 (N = 72) showed that children's inhibitory control increased after viewing and interacting with real events. The implications for studying the effects of mobile devices are discussed.     

Irlen Colored Filters in the Classroom: A 1‐Year Follow‐Up

Colored filters are used to treat Irlen syndrome (IS), a controversial disorder posited to be the cause of a substantial proportion of reading difficulties. Previously, we found that Irlen colored filters do not produce any short‐term alleviation of reading difficulties in schoolchildren aged 7–12. Here, we tested whether colored filters show benefits with longer‐term use, in a subset of the original sample. We measured reading rate with and without filters in 18 children diagnosed with IS, who had been using the filters for 1 year, and compared the progression of their reading ability across the year against 10 poor‐reader control children. The Irlen‐treatment group did not read any faster when using their colored filter, and showed no disproportionate gain in reading progress across the year compared to controls. We conclude that Irlen filters do not benefit reading, even after 1 year of use.     

The evolution of school league tables in England 1992–2016: ‘Contextual value‐added’, ‘expected progress’ and ‘progress 8’

Since 1992, the UK Government has published so‐called ‘school league tables’ summarising the average General Certificate of Secondary Education (GCSE) ‘attainment’ and ‘progress’ made by pupils in each state‐funded secondary school in England. While the headline measure of school attainment has remained the percentage of pupils achieving five or more good GCSEs, the headline measure of school progress has changed from ‘value‐added’ (2002–2005) to ‘contextual value‐added’ (2006–2010) to ‘expected progress’ (2011–2015) to ‘progress 8’ (2016–). This paper charts this evolution with a critical eye. First, we describe the headline measures of school progress. Second, we question the Government's justifications for scrapping contextual value‐added. Third, we argue that the current expected progress measure suffers from fundamental design flaws. Fourth, we examine the stability of school rankings across contextual value‐added and expected progress. Fifth, we discuss the extent to which progress 8 will address the weaknesses of expected progress. We conclude that all these progress measures and school league tables more generally should be viewed with far more scepticism and interpreted far more cautiously than they have often been to date.