Early processing of emotional faces in children with autism: An event-related potential study

Social deficits are one of the most striking manifestations of autism spectrum disorders (ASDs). Among these social deficits, the recognition and understanding of emotional facial expressions has been widely reported to be affected in ASDs. We investigated emotional face processing in children with and without autism using event-related potentials (ERPs). High-functioning children with autism (n = 15, mean age = 10.5 ± 3.3 years) completed an implicit emotional task while visual ERPs were recorded. Two groups of typically developing children (chronological age-matched and verbal equivalent age-matched [both ns = 15, mean age = 7.7 ± 3.8 years]) also participated in this study. The early ERP responses to faces (P1 and N170) were delayed, and the P1 was smaller in children with autism than in typically developing children of the same chronological age, revealing that the first stages of emotional face processing are affected in autism. However, when matched by verbal equivalent age, only P1 amplitude remained affected in autism. Our results suggest that the emotional and facial processing difficulties in autism could start from atypicalities in visual perceptual processes involving rapid feedback to primary visual areas and subsequent holistic processing.     

Reciprocal Imitation Following Adult Imitation by Children with Autism

This study examined the effects of adult imitation and adult playfulness on the imitation, social attention and initiation of new behaviours by non‐verbal preschoolers with autism. Videotapes taken from a previous study were recoded for the adult's imitation and playful behaviour and the children's imitation, social attention (looking at the adult's actions) and initiation of new behaviours. In the original study, twenty non‐verbal, 4‐ to 6‐year‐old children with autism were randomly assigned to an imitation or a contingent responsivity group. Both groups of children engaged in an intervention phase (during which the adult imitated the children or contingently responded to them) and a subsequent spontaneous play phase (during which the adult interacted spontaneously with the children). ANOVA for the current study revealed that the imitation group children versus the contingent responsivity group children spent a greater percent time showing social attention and initiating new behaviours during the intervention phase and showing social attention and imitating the adult's behaviours during the subsequent spontaneous play phase. A correlation analysis yielded significant correlations between the percent time the adult imitated the child during the intervention phase and the percent time the child showed social attention during the same intervention phase and imitating the adult during the subsequent spontaneous play phase. Adult imitation and playfulness during the spontaneous play phase were also correlated with the children's social attention during that phase. Copyright © 2013 John Wiley & Sons, Ltd.     

The relation between social engagement and pretend play in autism

The focus of this study is the nature and concomitants of pretend play among young children with autism. Age‐ and language‐matched children with autism (n= 27), autism spectrum disorder (n= 14), and developmental disorders without autism (n= 16) were administered the Test of Pretend Play (ToPP; Lewis & Boucher, 1997 ), with an additional rating of ‘playful pretence’. As predicted, children with autism showed less playful pretend than participants with developmental disorders who did not have autism. Across the groups, playful pretence was correlated with individual differences in communication and social interaction, even when scores on the ToPP were taken into account. Limitations in creative, playful pretend among children with autism relate to their restricted interpersonal communication and engagement.     

Autism spectrum conditions among children and adolescents: A new profiling tool

There is considerable debate about the sociocognitive features of autism spectrum conditions (ASC), and a tool for profiling the sociocognitive profiles of children and adolescents with ASC is needed. The aim of this research was to evaluate the psychometric properties of a new questionnaire—The Australian Scale for Autism Spectrum Conditions (ASASC). Three hundred twenty‐two parents of children on the ASC spectrum, including autistic disorder (n = 76), Asperger's disorder (n = 188), and pervasive developmental disorder not otherwise specified (n = 21), and a clinical group of children with subclinical ASC features and no ASC diagnosis (n = 37). Measures include an initial scale measuring eight potential dimensions of ASC, a related screening tool for autism, and two previously validated social skills questionnaires. The questionnaires were administered online. The ASASC was factor‐analysed, internal and test–retest reliabilities (for a randomly selected 84 parents) were calculated, and preliminary tests of convergent and divergent validity were conducted. The resulting measure (44 items) contained five coherent and reliable dimensions: understand and express emotion, fact orientation, sensory sensitivity, social communication, and rigidity. The questionnaire had good test–retest reliability and convergent/divergent validity. The ASASC enables profiles of ASC symptomatology that should be useful in adjusting interventions to individual needs.     

“Being‐Imitated” Strategy at Home‐Based Intervention for Young Children with Autism

Previous studies have consistently shown that simply imitating children with autism will help to promote amount of gaze and to decrease distance to others. However, whether the “being‐imitated” strategy also affects the development of social cognition has not been clarified. We conducted a 2‐month researcher‐guided and home‐based intervention. Mothers were randomly assigned to two groups: One group was coached to engage the child using imitation, and the other was coached simply to respond contingently to bids. Before and after the 2‐month intervention, imitation skills, understanding the intentions of others’ acts, and gaze toward mothers were measured. Two months of being‐imitated enables the children to raise the general amount of their gaze interaction. The imitation skills also were promoted. On the other hand, the development of understanding others’ intentions was not observed, irrespective of condition. The increase of attention to others, which is facilitated by the accumulation of the being‐imitated experiences, can be generalized to the nonimitating person and results in the imitation of others by the child. Alternatively, the developmental linkages between the being‐imitated strategy and understanding of others’ intentions should be an important research task. The present study also indicates that caretakers can play a significant role in the intervention for a child with autism.     

Patterns of Growth in Adaptive Social Abilities Among Children with Autism Spectrum Disorders

Adaptive social skills were assessed longitudinally at approximately ages 2, 3, 5, 9, and 13 years in a sample of 192 children with a clinical diagnosis of autism (n = 93), PDD-NOS (n = 51), or nonspectrum developmental disabilities (n = 46) at age 2. Growth curve analyses with SAS proc mixed were used to analyze social trajectories over time. Both individual characteristics and environmental resources emerged as key predictors of adaptive social behavior outcome. The gap between children with autism and the other two diagnostic groups widened with time as the social skills of the latter groups improved at a higher rate. However, within diagnostic groups, improvement ranged from minimal to very dramatic. Children with autism most at risk for problems with social adaptive abilities later in life can be identified with considerable accuracy at a very young age so they can be targeted for appropriate early intervention services.     

Exploring face perception in disorders of development: Evidence from Williams syndrome and autism

Individuals with Williams syndrome (WS) and autism are characterized by different social phenotypes but have been said to show similar atypicalities of face‐processing style. Although the structural encoding of faces may be similarly atypical in these two developmental disorders, there are clear differences in overall face skills. The inclusion of both populations in the same study can address how the profile of face skills varies across disorders. The current paper explored the processing of identity, eye‐gaze, lip‐reading, and expressions of emotion using the same participants across face domains. The tasks had previously been used to make claims of a modular structure to face perception in typical development. Participants with WS (N=15) and autism (N=20) could be dissociated from each other, and from individuals with general developmental delay, in the domains of eye‐gaze and expression processing. Individuals with WS were stronger at these skills than individuals with autism. Even if the structural encoding of faces appears similarly atypical in these groups, the overall profile of face skills, as well as the underlying architecture of face perception, varies greatly. The research provides insights into typical and atypical models of face perception in WS and autism.     

Joint Attention and Attachment in Toddlers with Autism

Joint attention is often referred to as a triadic relation between self, other and object. Young children with autism show deficiencies in the use of joint attention behaviors. Individual differences may be expected, and they may be determined by the children’s cognitive development or the characteristics of the relationship of the child with the caregiver. Although most joint attention skills develop under the age of three, most studies of joint attention in children with autism involved children older than 3 years of age, due to difficulties in diagnosing autism under this age. In this study we investigated joint attention behaviors of 78 young children (mean age 25.7 months, SD 6.1) with autism spectrum disorders (n = 20), other developmental delays (n = 18), and typically developing children (n = 40). Following the pertinent literature and confirmed by factor analysis, two types of joint attention behaviors were distinguished, Basic Joint Attention (BJA) and Associated Joint Attention (AJA). We found that cognitive delays and autistic symptoms—but not attachment insecurity or disorganization—were related to less joint attention. Already at the age of 2 years, children with more autistic symptoms show less joint attention, even after controlling for developmental level.     

Out of mind,out of sight? Investigating abnormal face scanning in autism spectrum disorder using gaze‐contingent paradigm

Diminished social motivation is hypothesized to explain abnormal face scanning pattern in individuals with autism spectrum disorder (ASD), especially reduced eye‐looking time in ASDs than typically developing (TD) people. Here, we tested an alternative explanation that children with ASD may use a compensatory strategy to avoid direct eye contact by processing the eyes through peripheral vision. We compared the face scanning patterns of children with and without ASD in two conditions: in the clear condition, the face was completely visible; in the blur condition, by using the gaze‐contingent paradigm, the whole face was blurred except for a small region being fixated at, thus children could not rely on the peripheral information to process the eyes. We found that children with ASD fixated less on the eyes than TD children in both conditions. Temporal‐course analyses further revealed the possible motivation‐based guidance of attention to process the eyes in the TD group but not in the ASD group. Additionally, we found that children with ASD scanned faces more randomly and less strategically than TD children. These results have ruled out the alternative hypothesis that the abnormal face scanning pattern in ASDs was due to their compensatory strategy to process eyes through peripheral vision, furthering our understanding of the mechanisms underlying their abnormal face scanning.     

Children with Autism and Their Friends: A Multidimensional Study of Friendship in High-Functioning Autism Spectrum Disorder

This study of Israeli and American preadolescent children examined characteristics of friendship in 44 children with high-functioning autism spectrum disorder (HFASD) compared to 38 typically developing children (TYP), as they interacted with a close friend Participants were 8-12 years of age (HFASD: Israel, n = 24; USA, n = 20; TYP: Israel, n = 23; USA, n = 15), and were matched on SES, receptive language vocabulary, child age, and gender (each study group included one girl). Multidimensional assessments included: individual behaviors of target children and observed child-friend interactions during construction and drawing scenarios; target child's and friend's self-perceived mutual friendship qualities; and mother-reported characteristics (friendship's duration/frequency; friend's age/gender/disability status). Overall, children with HFASD displayed a number of differences on individual and dyadic friendship measures. Both age and verbal abilities affected friendship behaviors. Children with HFASD and their friends perceived friendship qualities similarly, suggesting that preadolescents with HFASD have capacities for interpersonal awareness. Between-group similarities also emerged on several complex social behaviors, suggesting that friendship follows a developmental trajectory in autism and may enhance social interaction skills in autism.     

Development and training of role-taking abilities with emotionally disturbed preschoolers: A pilot study

The purposes of the present study were to verify whether emotionally disturbed preschoolers admitted to a medical day-care center would evidence a developmental lag in role-taking skills as compared to nondisturbed kindergartners and to study the effects of a training program with as its purpose to teach the MDC children to deal with their own and others' emotions. Forty-three children from a kindergarten (n=22; mean age of 4.11 years) and a medical day-care center (n=21; mean age of 4.11 years) participated in this study. The MDC children were randomly assigned to a control (n=9) and to a training condition (n=12). The training for the latter group covered a 10-week period. The results from this pretest and posttest design revealed no differences in performance for emotional role-taking (i.e., Borke-task) and social guessing (i.e., De Vries-task) between the disturbed and nondisturbed children on the pretest. On the posttest, however, a significant developmental lag was evident for the MDC-children who did not receive the training and those who did and the control group.     

Behaviors of children with high‐functioning autism when paired with typically developing versus delayed peers: a preliminary study

Children with high‐functioning autistic disorder (HAD) in a comprehensive behavioral treatment program (n = 9, age = 5–7 years) alternated between pairings with a typically developing peer and pairings with a peer who had both autism and developmental delay. All pairings took place in a free play setting. The children with HAD displayed much more interactive play and speech (as well as much less self‐stimulation) with typically developing peers than with delayed peers. They received frequent cues and consequences for interaction from typically developing peers, but not in sessions with delayed peers. These results suggest that placement with typically developing peers is critical for children with HAD in behavioral treatment. Copyright © 2002 John Wiley & Sons, Ltd.     

Irrelevant‐action imitation is short‐term and contextual: Evidence from two under‐studied populations

Across the lifespan and across populations, humans ‘overimitate’ causally unnecessary behaviors. Such irrelevant‐action imitation facilitates faithful cultural transmission, but its immediate benefits to the imitator are controversial. Over short time scales, irrelevant‐action imitation may bootstrap artifact exploration or interpersonal affiliation, and over longer time scales it may facilitate acquisition of either causal models or social conventions. To investigate these putative functions, we recruited community samples from two under‐studied populations: Yasawa, Fiji, and Huatasani, Peru. We use a two‐action puzzle box: first after a video demonstration, and again one month later. Treating age as a continuous variable, we reveal divergent developmental trajectories across sites. Yasawans (44 adults, M = 39.9 years, 23 women; 42 children, M = 9.8 years, 26 girls) resemble documented patterns, with irrelevant‐action imitation increasing across childhood and plateauing in adulthood. In contrast, Huatasaneños (48 adults, M = 37.6 years, 33 women; 47 children, M = 9.3 years, 13 girls) evince a parabolic trajectory: adults at the site show the lowest irrelevant‐action imitation of any demographic set in our sample. In addition, all age sets in both populations reduce their irrelevant actions at Time 2, but do not reduce their relevant‐action imitation or goal attainment. Taken together, and considering the local cultural contexts, our results suggest that irrelevant‐action imitation serves a short‐term function and is sensitive to the social context of the demonstration.     

WISC-R Subtest But No Overall VIQ–PIQ Difference in Dutch Children with PDD-NOS

VIQ–PIQ differences have been studied in children with autism and Asperger syndrome but have not been studied in a separate group of children with PDD-NO, although, PDD-NOS has a much higher prevalence rate than autism and deficits in communication and social interaction are severe. The Wechsler Intelligence Scale for Children-Revised (WISC-R) was administered to 100 children, aged 6–12 years, with PDD-NOS (n = 76), autism (n = 13), and Asperger syndrome (n = 11). PDD-NOS was diagnosed using explicit research criteria. No overall differences between VIQ and PIQ were found in PDD-NOS and autism. Peaks in the subtest scores on Information, Similarities, Picture Arrangement, and Mazes, and troughs in the subtest scores on Comprehension, Digit Span, and Coding were demonstrated in children with PDD-NOS. Their score on the Freedom from Distractibility factor was lower than the scores on the Verbal Comprehension factor and the Perceptual Organization factor. Children with PDD-NOS seemed to have a similar VIQ–PIQ profile as children with autism, and on the subtest level children with PDD-NOS showed some similarities to children with Asperger syndrome or autism. It was not possible to distinguish PDD-NOS from autism or Asperger syndrome by using IQ scores.     

Priming third‐party ostracism increases affiliative imitation in children

Human beings are intensely social creatures and, as such, devote significant time and energy to creating and maintaining affiliative bonds with group members. Nevertheless, social relations sometimes collapse and individuals experience exclusion from the group. Fortunately for adults, they are able to use behavioral strategies such as mimicry to reduce their social exclusion. Here we test whether children, too, increase their imitation following an experience of ostracism. Given humans’ profound need to belong, we predicted that the mere hint of social exclusion – even third‐party social exclusion – would be sufficient to increase affiliative imitation in 5‐year‐olds. As predicted, children primed with videos in which one shape was ostracized by a group of other shapes subsequently imitated the actions of a model more closely than children in a control condition. These findings highlight just how sensitive humans are to social exclusion and demonstrate that children, like adults, modify their social behavior in response to ostracism.     

Becoming a high‐fidelity – super – imitator: what are the contributions of social and individual learning?

In contrast to other primates, human children's imitation performance goes from low to high fidelity soon after infancy. Are such changes associated with the development of other forms of learning? We addressed this question by testing 215 children (26–59 months) on two social conditions (imitation, emulation) – involving a demonstration – and two asocial conditions (trial‐and‐error, recall) – involving individual learning – using two touchscreen tasks. The tasks required responding to either three different pictures in a specific picture order (Cognitive: Airplane→Ball→Cow) or three identical pictures in a specific spatial order (Motor‐Spatial: Up→Down→Right). There were age‐related improvements across all conditions and imitation, emulation and recall performance were significantly better than trial‐and‐error learning. Generalized linear models demonstrated that motor‐spatial imitation fidelity was associated with age and motor‐spatial emulation performance, but cognitive imitation fidelity was only associated with age. While this study provides evidence for multiple imitation mechanisms, the development of one of those mechanisms – motor‐spatial imitation – may be bootstrapped by the development of another social learning skill – motor‐spatial emulation. Together, these findings provide important clues about the development of imitation, which is arguably a distinctive feature of the human species.     

Increasing Single‐Word Requests to Multiword Requests in Children with Autism and Related Disabilities

Initial language training with children with autism often focuses on the production of single‐word requests (i.e., mands). As a child progresses in treatment, it is desirable to increase the mean length of utterance (MLU) of requests. The present study examined treatment outcomes of behavioral intervention designed to increase the MLU of requests in a larger sample of children with language delays (n = 30). Intervention consisted of prompts and differential reinforcement for lengthier requests, and trials were conducted flexibly throughout the treatment session. A non‐concurrent multiple baseline across participants design was utilized to establish experimental control, and MLU intervention consisted of a baseline and treatment phase for each participant. Nonoverlap of all pairs (NAP) was employed to estimate an effect size. Overall treatment effects were medium to large (average NAP = 0.89; average d = 2.36), and the majority of the sample (70%) demonstrated strong treatment effects. Results suggest that targeted behavioral intervention to increase the length of requests can be effective for children with autism and associated language delays. Copyright © 2015 John Wiley & Sons, Ltd.     

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.     

Differential effects of happy,neutral, and sad still‐faces on 2‐, 4‐ and 6‐month‐old infants

The role of facial expression in the determination of infants' reaction to the sudden still‐face of a social partner was investigated. In a within subject design, 2, 4 and 6‐month‐old infants were tested in periods of normal interaction interspersed with periods of prolonged still‐face episodes in which the female adult social partner adopted either a happy, neutral, or sad static facial expression while maintaining eye contact with the infant. Proportion of infants' smiling and gazing at the social partner as indices of reaction from the various still‐face episodes reveal that, in comparison with same age control groups, four and six‐month‐old infants did not demonstrate any differential responses depending on either happy, neutral, and sad still‐faced expression. In contrast, two‐month olds demonstrated some evidence of a reduced still‐face effect in the happy still‐face condition. These results point to early developmental changes in the mechanisms underlying the still‐face phenomenon. We propose that by 4 months, and not prior, the reaction to still‐face episodes are essentially based on the detection of social contingencies. Copyright © 2002 John Wiley & Sons, Ltd.     

Over‐imitation in children with autism and Down syndrome

Typically developing children have been shown to imitate the specific means used by an adult to achieve an object‐directed outcome, even if a more efficient method is available. It has been argued that this behaviour can be attributed to social and communicative motivations. The purpose of this study was to investigate whether children with autism spectrum disorders (ASD), relative to children with Down syndrome (DS), show a reduced tendency to copy the exact means used by an adult to produce a novel outcome. To achieve this a sample of 34 children (22 with ASD and 12 with DS) were given a test of object‐directed imitation. Contrary to expectation, children in both groups imitated the specific method of the model to the same high extent. This finding is in line with suggestions that object‐directed imitation is relatively spared in children with autism but is surprising given arguments linking such imitation to socially based motivations. Nevertheless, children's ability to successfully copy the model was associated with their communicative ability, providing some support for the link between imitation and communication.