Professor Alison Lane

Infants diagnosed with autism spectrum disorder (autism) have difficulty engaging in social communication and interactions with others and often experience language impairment. The use of infant-directed speech (IDS), which is the speech register used when interacting with infants, is associated with infant language and socio-communicative development. The aim of this study was twofold; the first aim was to scope the literature to determine if evidence exists for differences between the IDS caregivers use to infants at high-risk or those later diagnosed with autism, and the IDS typically spoken to neurotypical infants. The second aim was to investigate if any IDS characteristics used by caregivers of high-risk or diagnosed infant populations predicted language development. Twenty-six studies were included and provided evidence that high-risk and later diagnosed infants are exposed to similar amounts of IDS as their neurotypical peers. There is evidence, however, that the IDS used with high-risk and later diagnosed infants may comprise shorter utterances, more action-directing content, fewer questions, more attention bids, and more follow-in commenting. There is also evidence that more attention bids and follow-in commenting used to infants at high risk or those later diagnosed with autism were associated with better language abilities longitudinally.

Write Start is a co-taught, whole of class approach to handwriting instruction developed for students in grade one and delivered collaboratively by teachers and occupational therapists. Write Start emphasizes the development of handwriting fluency utilizing evidence-based cognitive and perceptual motor strategies within a station-based teaching approach. This pilot study assessed the impact of a modified Write Start on handwriting fluency in Australian kindergarten students (first year of formal schooling), and investigated the effects of early literacy on intervention outcomes using a retrospective analysis of existing clinical data. Participants were kindergarten students (n¿=¿81; mean age¿=¿65.9¿months) attending a large independent primary school in a regional metropolitan center. Participants received the modified Write Start, over one school term, in two x 45 minute sessions per week for 8 weeks. Handwriting fluency was measured pre- and post-intervention using a researcher-designed tool, the Letter Form Assessment (LFA), based on and extending commonly used measures. LFA scores for the whole cohort were significantly higher post-intervention, indicating improved handwriting after the intervention (Z¿=¿-4.457, p <¿.0001). In order to determine if school entry ability impacted responsiveness to the intervention, students were assigned to a high or low performing tier based on scores from three early literacy skills measured by teachers as part of routine assessment at school entry (n¿=¿70). There was no effect of Low or High Tier literacy skills groupings on change to LFA score for phonics (f (19, 50)¿=¿1.11, p =¿.36), phonemic awareness (f (19,50)¿=¿1.32, p =¿.21) or writing (f (19,50)¿=¿0.59, p =¿.89). The modified Write Start shows promise as an effective intervention for kindergarten handwriting, however further revisions and testing should address the potential impact of literacy and the interrelationship of perceptual motor and cognitive skills on outcomes.

Background: Sensory symptoms are defined as atypical behavioral responses to daily sensory stimuli that impact on the performance of everyday routines. Sensory symptoms have been observed in young people with and without developmental concerns. There is uncertainty, however, regarding the best way to identify and manage sensory symptoms. The aim of this paper is to provide a review of current best evidence regarding measurement of and interventions for sensory symptoms. Methods: A narrative review methodology is adopted to address the aims of this paper. First, sensory symptoms are defined, and then, an overview of the evidence for the relationship between sensory symptoms and childhood function is provided. Second, commonly used sensory assessment tools are summarized and evaluated. Finally, an overview and critique of the evidence for sensory and nonsensory-based interventions addressing sensory symptoms are given. Results: The terminology used to describe sensory symptoms varies by discipline, and several conceptual taxonomies including sensory subtypes have been proposed. There is ample evidence to support the association of sensory symptoms with childhood function including social engagement, repetitive behaviors, anxiety, and participation in self-care routines. Measurement of sensory symptoms is dominated by proxy-report instruments, and few single instruments assess the entire domain of sensory symptomatology. The evidence for interventions for sensory symptoms is emerging but still limited by low quantity and methodological concerns. Conclusions: Effective management of sensory symptoms may mitigate the burden of neurodevelopmental disability and mental illness in young people. Identification of sensory symptoms should be conducted by a skilled practitioner utilizing multiple measurement methods. Intervention protocols for sensory symptoms should be informed by current best evidence which is strongest for Ayres Sensory Integration®, Qigong massage, the Alert Program®, and Social Stories. To make significant progress in this field, however, new intervention studies must address the question of ¿what intervention works for whom?¿.

Objective: We aimed to examine the prevalence and severity of psychological distress of women with asthma in both the prenatal and postnatal periods, and to determine whether asthmatic women with and without mental health problems differ in self-management, medications knowledge, and asthma symptoms. Methods: We assessed spirometry performance and asthma symptoms in 120 women (mean age 29.8 years) before 23 weeks gestation, as part of the Breathing for Life Trial (Trial ID: ACTRN12613000202763). Prenatal depression data was obtained from medical records. At 6 weeks postpartum, we assessed general health, self-reported asthma control, depression symptoms (with the Edinburgh Postnatal Depression Scale) and adaptive functioning (with the Achenbach System of Empirically Based Assessment scales). Results: Twenty percent of our sample reported having a current mental health diagnosis, 14% reported currently receiving mental health care, while 47% reported having received mental health care in the past (and may/may not have received a diagnosis). The sample scored high on the Aggressive Behavior, Avoidant Personality, and Attention Deficit/Hyperactivity scales. Poorer self-reported postnatal asthma control was strongly correlated with elevated somatic complaints, externalizing problems, antisocial personality problems, and greater withdrawal. Prenatal spirometry or asthma severity and control were largely not associated with measures of psychopathology. Conclusions: These findings indicate that pregnant women with asthma frequently report issues with psychopathology during the prenatal and postnatal periods, and that the subjective perception of asthma control may be more related to psychopathology than objective asthma measures. However, due to sample bias, these findings are likely to be understated.

Introduction: Preliminary reports support the hypothesis that sensory issues may be related to atypical defecation habits in children. Clinical practice in this area is limited by the lack of validated measures. The toileting habit profile questionnaire was designed to address this gap. Methods: This study included two phases of validity testing. In phase 1, we used Rasch analysis of existing data to assess item structural validity, directed content analysis of recent literature to determine the extent to which items capture clinical concerns, and expert review to validate the toileting habit profile questionnaire. Based on phase 1 outcomes, we made adjustments to toileting habit profile questionnaire items. In phase 2, we examined the item structural validity of the revised toileting habit profile questionnaire. Results: Phase 1 resulted in a 17-item questionnaire: 15 items designed to identify habits linked to sensory over-reactivity and two designed to identify sensory under-reactivity and/or poor perception items. The analysis carried out in phase 2 supported the use of the sensory over-reactivity items. Remaining items can be used as clinical observations. Conclusion: Caregiver report of behaviour using the revised toileting habit profile questionnaire appears to adequately capture challenging defecation behaviours related to sensory over-reactivity. Identifying challenging behaviours related to sensory under-reactivity and/or perception issues using exclusively the revised toileting habit profile questionnaire is not recommended.

Sensory over-reactivity may be related to atypical defecation habits in children with constipation. The Toileting Habit Profile Questionnaire-Revised (THPQ-R) is designed to identify defecation-related sensory issues. This study examined the discriminative and concurrent validity of the THPQ-R. Differentiating between children with and without constipation was used to establish discriminative validity. The relationship between scores on the THPQ-R and on the defecation scale of the Virginia Encopresis-Constipation Apperception Test (VECAT-S) was examined to establish concurrent validity. The difference in THPQ-R scores was statistically significant. There was a strong positive correlation between the over-reactivity section of the THPQ-R and VECAT-S scores. Results support using the THPQ-R to identify atypical defecation behaviors.

Objective: Maternal asthma during pregnancy is associated with a higher risk of negative perinatal outcomes. However, little is known about the direct effects of maternal asthma on infant cognitive development. We examined the evidence for an impact of maternal asthma during pregnancy on cognitive and behavioral development of the child. Data sources: We conducted a MEDLINE, PsychINFO, and manual search of the databases for all available studies until January 9th, 2018. Study Selections: Studies were deemed relevant if they included child cognitive and behavioral development as the outcome, with maternal asthma as the determinant of interest. Results: Ten articles matched selection criteria. Some studies report that maternal asthma is associated with increased risk for autism and intellectual disability in children. However, these effects are small and are often eliminated when controlling for confounding variables. Other studies have found no association. The only prospective study found that well-managed asthma during pregnancy was not associated with negative developmental outcomes in children. Conclusions: The evidence suggests that the relationship between maternal asthma during pregnancy and poor developmental and behavioral outcomes of children is weak. Children of mothers with well-managed asthma during pregnancy have similar developmental trajectories to those born to healthy mothers. Prospective, longitudinal studies are needed to confirm these conclusions. Optimal asthma management is important in pregnancy as it may have longer term benefits for the health of the offspring. As the rate of asthma increases in the population, the implications of maternal asthma on child development will be of greater importance.

Recent reports identify sensory subtypes in ASD based on shared patterns of responses to daily sensory stimuli [Ausderau et al., 2014; Lane, Molloy, & Bishop, 2014]. Lane et al. propose that two broad sensory dimensions, sensory reactivity and multisensory integration, best explain the differences between subtypes, however this has yet to be tested. The present study tests this hypothesis by examining the latent constructs underlying Lane's sensory subtypes. Participants for this study were caregivers of children with autism spectrum disorder (ASD) aged 2¿12 years. Caregiver responses on the Short Sensory Profile (SSP), used to establish Lane's sensory subtypes, were extracted from two existing datasets (total n = 287). Independent component analyses were conducted to test the fit and interpretability of a two-construct structure underlying the SSP, and therefore, the sensory subtypes. The first construct was largely comprised of the taste/smell sensitivity domain, which describes hyper-reactivity to taste and smell stimuli. The second construct had a significant contribution from the low energy/weak domain, which describes behaviors that may be indicative of difficulties with multisensory integration. Findings provide initial support for our hypothesis that sensory reactivity and multisensory integration underlie Lane's sensory subtypes in ASD. Autism Res 2017, 10: 1364¿1371. © 2017 International Society for Autism Research, Wiley Periodicals, Inc.

Introduction: Preterm infants admitted to the Neonatal Intensive Care Unit are at higher risk of poor neurodevelopmental and sensory outcomes. There is interest in establishing whether elements of the Neonatal Intensive Care Unit sensory environment may influence the sensory and overall development of these infants. Method: The purpose of this scoping review was to provide a comprehensive overview of relevant research regarding the sensory elements of the Neonatal Intensive Care Unit, and their short- and long-term influence on preterm infants. This scoping review is underpinned by the six-stage framework by Arksey and O¿Malley. Results: There are few studies that have directly examined the influence of the Neonatal Intensive Care Unit environment upon the sensory and developmental outcomes of infants born preterm, in infancy. The findings of the studies included in this review suggest that the Neonatal Intensive Care Unit sensory environment may alter developmental trajectories of preterm infants. However, low-quality evidence exists in this field, with much of the literature being preliminary. Conclusion: Further experimental studies are required that combine multiple methods of assessment to more rigorously understand the sensory characteristics of the Neonatal Intensive Care Unit, and their relationship with developmental outcomes across early childhood.

Sensory difficulties are a commonly occurring feature of autism spectrum disorders and are now included as one manifestation of the ¿restricted, repetitive patterns of behavior, interests, or activities¿ diagnostic criteria of the DSM5 necessitating guidelines for comprehensive assessment of these features. To facilitate the development of such guidelines, this paper provides an overview of the literature on sensory features in autism spectrum disorder. We summarize the literature pertaining to: terminology, current assessment practices, sensory development, and the relationship of sensory features to core symptoms of autism. The paper concludes with recommendations for clinical assessment of sensory features in Autism.

People with autism spectrum disorder (ASD) commonly experience difficulties with social participation, play, and leisure along with restricted and repetitive behaviors that can interfere with occupational performance. The objective of this systematic review was to evaluate current evidence for interventions within the occupational therapy scope of practice that address these difficulties. Strong evidence was found that social skills groups, the Picture Exchange Communication System, joint attention interventions, and parent-mediated strategies can improve social participation. The findings were less conclusive for interventions to improve play and leisure performance and to decrease restricted and repetitive behaviors, but several strategies showed promise with moderately strong supporting evidence. Occupational therapists should be guided by evidence when considering interventions to improve social participation, play, leisure, and restricted and repetitive behaviors in people with ASD. Additional research using more robust scientific methods is needed for many of the currently available strategies.

Objective. To measure upper-extremity and gross motor skill development in infants with and without risk factors for autism spectrum disorder (ASD). Method. Data were coded retrospectively from 39 infants who participated in longitudinal structured early developmental assessments. Twenty-five infants were at high risk for ASD, and the remaining 14 infants were classified as low risk. Upper-extremity and motor skill development were coded at ages 2, 4, and 6 mo. Five infants went on to receive an ASD diagnosis at age 2-4 yr. Results. Infants at high risk for ASD demonstrated fewer midline behaviors with the upper extremities and delayed motor skill development than the low-risk group. Differences in motor skills were most apparent at age 4 mo. Conclusion. Early monitoring for motor delay in infants at high risk for ASD is warranted. Midline control and play with the upper extremities and overall motor skill development are possible assessment and therapeutic targets.

This study examines whether sensory differences can be used to classify meaningful subgroups of children with autism spectrum disorder (ASD). Caregivers of children with ASD aged 2-10 years (n=228) completed the Short Sensory Profile. Model-based cluster analysis was used to extract sensory subtypes. The relationship of these subtypes to age, gender, autism symptom severity, and nonverbal intelligence quotient (IQ) was further explored. Four distinct sensory subtypes were identified: (a) sensory adaptive; (b) taste smell sensitive; (c) postural inattentive; and (d) generalized sensory difference. The sensory subtypes differ from each other on two dimensions: (a) the severity of reported sensory differences; and (b) the focus of differences across auditory, taste, smell, vestibular and proprioceptive domains. Examination of the clinical features of each subtype reveals two possible mechanisms of sensory disturbance in autism: (a) sensory hyperreactivity; and (b) difficulties with multisensory processing. Further, the sensory subtypes are not well explained by other variables such as age, gender, IQ, and autism symptom severity. We conclude that classification of children using sensory differences offers a promising method by which to identify phenotypes in ASD. Sensory-based phenotypes may be useful in identifying behavioral features responsive to specific interventions thereby improving intervention effectiveness. Further validation of the sensory-based phenotypes by establishing neural and physiological correlates is recommended. Autism Res 2014, 7: 322-333. © 2014 International Society for Autism Research, Wiley Periodicals, Inc.

Thirty children with autism spectrum disorder (ASD) aged 3 to 10 years participated in this study exploring associations between problem eating behaviors, daily nutrient intake, and sensory disturbance. Parents completed surveys regarding the usual eating behaviors of their children. Children exhibiting more severe autism-specific disruptive behaviors at mealtimes were most at risk for suboptimal intake of select nutrients such as biotin, vitamin K, iodine, linolenic omega-3 fatty acids, and choline, which play a role in metabolism and bone and brain health. Children exhibiting food refusal tended to have increased caloric and nutrient intake. Picky eaters were more likely to consume adequate daily nutrients but experienced the highest levels of parent-reported taste/smell sensitivity. The findings of this preliminary study support a multifactorial approach to the management of problem eating behaviors in ASD. © 2014 The Author(s).