Constructing an understanding of mind : the development of children's social understanding within social interaction

Theories of children's developing understanding of mind tend to emphasize either individualistic processes of theory formation, maturation, or introspection, or the process of enculturation. However, such theories must be able to account for the accumulating evidence of the role of social interaction in the development of social understanding. We propose an alternative account, according to which the development of children's social understanding occurs within triadic interaction involving the child's experience of the world as well as communicative interaction with others about their experience and beliefs (Chapman 1991; 1999). It is through such triadic interaction that children gradually construct knowledge of the world as well as knowledge of other people. We contend that the extent and nature of the social interaction children experience will influence the development of children's social understanding. Increased opportunity to engage in cooperative social interaction and exposure to talk about mental states should facilitate the development of social understanding. We review evidence suggesting that children's understanding of mind develops gradually in the context of social interaction. Therefore, we need a theory of development in this area that accords a fundamental role to social interaction, yet does not assume that children simply adopt socially available knowledge but rather that children construct an understanding of mind within social interaction

Story contexts increase susceptibility to the DRM illusion in 5-year-olds.

False recognition in children aged 5, 8, and 11 years was investigated using the standard version of the Deese-Roediger-McDermott (DRM) procedure and an alternative version in which the DRM stimuli were embedded in stories designed to emphasize their overall theme. Relative to the 8- and 11-year-olds, the 5-year-olds falsely recognized fewer critical lures when the DRM stimuli were presented in lists, but falsely recognized more critical lures when the stimuli were presented in stories. Levels of false recognition in the 8- and 11-year-olds were not affected by study format. We argue that the story context enhanced the ability of the 5-year-olds to make inferences based on the theme of the DRM stimuli. The 5-year-olds then showed higher levels of false recognition than the older children owing to their inability to reject lure words consistent with the stories

lnfant Mother Attachment in Separated and Married Families

Considers two contrasting predictions about the effects of parental marital separation on infants' attachment to their mothers. Behavioral resistance of infants to stressors; Behavior of infants to anxious attachments; Role of marital status versus unfavorable life events in affecting children's development

Cross-age effects on forensic face construction

The own-age bias (OAB) refers to recognition memory being more accurate for people of our own age than other age groups (e.g., Wright and Stroud, 2002). This paper investigated whether the OAB effect is present during construction of human faces (also known as facial composites, often for forensic/police use). In doing so, it adds to our understanding of factors influencing both facial memory across the life span as well as performance of facial composites. Participant-witnesses were grouped into younger (19–35 years) and older (51–80 years) adults, and constructed a single composite from memory of an own- or cross-age target face using the feature-based composite system PRO-fit. They also completed the shortened version of the glasgow face matching test (GFMT; Burton et al., 2010). A separate group of participants who were familiar with the relevant identities attempted to name the resulting composites. Correct naming of the composites revealed the presence of an OAB for older adults, who constructed more identifiable composites of own-age than cross-age faces. For younger adults, age of target face did not influence correct naming and their composites were named at the same level as those constructed by older adults for younger targets. Also, there was no reliable correlation between face perception ability and composite quality. Overall, correct naming was fairly good across the experiment, and indicated benefit for older witnesses for older targets. Results are discussed in terms of contemporary theories of OAB, and implications of the work for forensic practice

Lexicographic Multi-Objective Reinforcement Learning

In this work we introduce reinforcement learning techniques for solving lexicographic multi-objective problems. These are problems that involve multiple reward signals, and where the goal is to learn a policy that maximises the first reward signal, and subject to this constraint also maximises the second reward signal, and so on. We present a family of both action-value and policy gradient algorithms that can be used to solve such problems, and prove that they converge to policies that are lexicographically optimal. We evaluate the scalability and performance of these algorithms empirically, demonstrating their practical applicability. As a more specific application, we show how our algorithms can be used to impose safety constraints on the behaviour of an agent, and compare their performance in this context with that of other constrained reinforcement learning algorithms

Promoting child-initiated social-communication in children with autism

This study examined the effects of the Son-Rise Program (SRP), an intensive treatment aimed to improve child-initiated social communication in children with autism. Six children between the ages of 47 and 78 months were provided with 40 h of SRP, with pre- to post-treatment behavioral changes tested using a novel passive interaction probe task. Results showed an increase in the frequency of spontaneous social orienting and gestural communication for the experimental children, compared to six age- and behaviorally-matched control children with autism. In addition, for the children who received treatment, the duration of social dyadic interactions and total time spent engaged in social interaction increased from pre- to post-treatment. These findings suggest that intensive intervention focused on fostering child-initiated interaction increases social-communicative behaviors in children with autism. Learning outcomes: Readers will be able to describe the principles underlying the Son-Rise Program, a developmental approach to treatment for autism. Readers will be able to explain the methods of the investigation of a 5-day intensive Son-Rise Program and the results that report change in social communication in children with autism

Preserving the Past: An Early Interview Improves Delayed Event Memory in Children With Intellectual Disabilities.

The influence of an early interview on children's (N = 194) later recall of an experienced event was examined in children with mild and moderate intellectual disabilities (CWID; 7-12 years) and typically developing (TD) children matched for chronological (7-12 years) or mental (4-9 years) age. Children previously interviewed were more informative, more accurate, and less suggestible. CWID (mild) recalled as much information as TD mental age matches, and were as accurate as TD chronological age matches. CWID (moderate) recalled less than TD mental age matches but were as accurate. Interviewers should elicit CWID's recall as early as possible and consider developmental level and severity of impairments when evaluating eyewitness testimony.This research was supported by a grant from the Economic and Social Research Council, UK RES-­‐000-­‐23-­‐0949 to Charlie Lewis, Deirdre Brown and Michael Lamb, and in part by a Postdoctoral Fellowship from the Foundation for Research, Science and Technology, NZ (LANC0201) to Deirdre Brown.This is the final version of the article. It first appeared from Wiley via http://dx.doi.org/10.1111/cdev.1236

Special educational needs and disability : Understanding local variation in prevalence, service provision and support

There is a growing recognition of the variation between local authorities in the proportions of children with SEN, the apparent composition of these groups, and the nature and quality of services provided to support them. Local area data collected on children with SEN, particularly the termly School Census and the annual SEN2 return by local authorities, show differences in the number of children with SEN, the nature of their recorded conditions and the Code of Practice level of support they are receiving. This variation was highlighted by the House of Commons Education and Skills Select Committee which commented on a ‘postcode lottery’ or a ‘lottery of provision’, and reports by the Audit Commission and Ofsted which also highlighted variation in provision and standards

Big Bang Nucleosynthesis initial conditions : revisiting Wagoner et al. (1967)

We revisit Wagoner et al., a classic contribution in the development of Big Bang Nucleosynthesis. We demonstrate that it presents an incorrect expression for the temperature of the early universe as a function of time in the high temperature limit, Т>˜ 1010 K. As this incorrect expression has been reproduced elsewhere, we present a corrected form for the initial conditions required for calculating the formation of the primordial elements in the Big Bang

SIG-DB: leveraging homomorphic encryption to Securely Interrogate privately held Genomic DataBases

Genomic data are becoming increasingly valuable as we develop methods to utilize the information at scale and gain a greater understanding of how genetic information relates to biological function. Advances in synthetic biology and the decreased cost of sequencing are increasing the amount of privately held genomic data. As the quantity and value of private genomic data grows, so does the incentive to acquire and protect such data, which creates a need to store and process these data securely. We present an algorithm for the Secure Interrogation of Genomic DataBases (SIG-DB). The SIG-DB algorithm enables databases of genomic sequences to be searched with an encrypted query sequence without revealing the query sequence to the Database Owner or any of the database sequences to the Querier. SIG-DB is the first application of its kind to take advantage of locality-sensitive hashing and homomorphic encryption to allow generalized sequence-to-sequence comparisons of genomic data.Comment: 38 pages, 3 figures, 4 tables, 1 supplemental table, 7 supplemental figure