Continuity and Change in Cognition and Autism Severity from Toddlerhood to School Age

Clark, Megan; Barbaro, Josephine; Dissanayake, Cheryl

doi:10.1007/s10803-016-2954-7

Cited by 50 publications

(37 citation statements)

References 41 publications

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“…The Mullen NVIQ and VIQ scores were used with the WASI Perceptual Reasoning Index (PRI) and Verbal Comprehension Index (VCI) quotients (mean 100; SD 15) in the analysis of, respectively, non-verbal and verbal skills. The MSEL and WASI are not equivalent but both provide a measure of verbal, non-verbal and overall cognitive functioning and have been used to assess change in cognitive skills in children with ASD from toddlerhood to mid-childhood (Clark et al 2017 ). In this sample the correlation between the Mullen ELC at 36 months and the WASI FSIQ at 84 months was moderate across groups (Pearson’s R = .424, p < .001).…”

Section: Methodsmentioning

confidence: 99%

Adaptive Behaviour and Cognitive Skills: Stability and Change from 7 Months to 7 Years in Siblings at High Familial Risk of Autism Spectrum Disorder

Salomone

Shephard

Milosavljevic

et al. 2018

J Autism Dev Disord

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Cognitive and adaptive behaviour abilities early in life provide important clinical prognostic information. We examined stability of such skills in children at high familial risk for ASD who either met diagnostic criteria for ASD at age 7 years (HR-ASD, n = 15) or did not (HR-non-ASD, n = 24) and low-risk control children (LR, n = 37), prospectively studied from infancy. For both HR groups, cognitive skills were consistently lower across time than those of LR children. HR-ASD children showed increasing difficulties in adaptive behaviour over time compared to LR children, while the HR-non-ASD children showed no such difficulties. This pattern of change may inform our understanding of developmental profiles of HR siblings beyond core ASD symptoms.

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Section: Methodsmentioning

confidence: 99%

Adaptive Behaviour and Cognitive Skills: Stability and Change from 7 Months to 7 Years in Siblings at High Familial Risk of Autism Spectrum Disorder

Salomone

Shephard

Milosavljevic

et al. 2018

J Autism Dev Disord

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“…Barbaro and Dissanayake () have also shown that the following behavioral markers at 24 months contribute to a shift to a diagnosis other than ASD by 48 months: Better eye contact, more directed vocalizations, integration of gaze, and directed vocalizations or gestures as well as a higher nonverbal developmental quotient. Clark et al () have suggested that a diagnosis of ASD at 24 months appears to be reliable and stable from toddlerhood to school age. Therefore, these features might be very informative for routine surveys.…”

Section: Discussionmentioning

confidence: 99%

Early childhood behavioral features that discriminate autism from other developmental problems in Japan

Okuno

Uehara

2018

Child Adoles Psych Nursing

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“…We cannot claim that these changes are significant, different test methods had been used at T2 and T3. However, the tools are designed to measure the same construct 28 and results illustrate the varying cognitive/developmental trajectories in children with BIF. Our cognitive results, although not statistically substantiated, support the instability of an IQ in the BIF area 11 and the need of follow-up assessments of cognitive functions.…”

Section: Discussionmentioning

confidence: 99%

Children with borderline intellectual functioning and autism spectrum disorder: developmental trajectories from 4 to 11 years of age

Olsson

Holm²,

Westerlund

et al. 2017

NDT

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BackgroundStudies on autism have tended to focus either on those with intellectual disability (ie, those with intellectual quotient [IQ] under 70) or on the group that is referred to as “high-functioning”, that is, those with borderline, average or above average IQ. The literature on cognition and daily functioning in autism spectrum disorder combined specifically with borderline intellectual functioning (IQ 70–84) is limited.MethodsFrom a representative group of 208 preschool children diagnosed with autism spectrum disorder, those 50 children in the group with borderline intellectual functioning at ages 4.5–6.5 years were targeted for follow-up at a median age of 10 years. A new cognitive test was carried out in 30 children. Parents were interviewed with a semi-structured interview together with the Vineland Adaptive Behavior Scales (n=41) and the Autism-Tics, attention-deficit/hyperactivity disorder (AD/HD) and other comorbidities inventory (A-TAC) (n=36).ResultsMost children of interviewed parents presented problems within several developmental areas. According to A-TAC and the clinical interview, there were high rates of attention deficits and difficulties with regulating activity level and impulsivity. Vineland Adaptive Behavior Scales composite scores showed that at school age, a majority of the children had declined since the previous assessment at ages between 4.5 and 6.5 years. Almost half the tested group had shifted in their IQ level, to below 70 or above 84.ConclusionNone of the children assessed was without developmental/neuropsychiatric problems at school-age follow-up. The results support the need for comprehensive follow-up of educational, medical and developmental/neuropsychiatric needs, including a retesting of cognitive functions. There is also a need for continuing parent/family follow-up and support.

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Continuity and Change in Cognition and Autism Severity from Toddlerhood to School Age

Abstract: Diagnoses at 24-months, appear to be reliable and stable. Further research is needed to investigate whether early identification, which provides more opportunity to access early intervention, may in turn facilitate cognitive development over time.

Cited by 50 publications

References 41 publications

Adaptive Behaviour and Cognitive Skills: Stability and Change from 7 Months to 7 Years in Siblings at High Familial Risk of Autism Spectrum Disorder

Adaptive Behaviour and Cognitive Skills: Stability and Change from 7 Months to 7 Years in Siblings at High Familial Risk of Autism Spectrum Disorder

Early childhood behavioral features that discriminate autism from other developmental problems in Japan

Children with borderline intellectual functioning and autism spectrum disorder: developmental trajectories from 4 to 11 years of age

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