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Showing results for "autism"

Circulating thyroid hormones and metabolites in children with autism spectrum disorder

Thyroid hormones affect neurological development and function, but detailed studies of thyroid hormones and metabolites in autism are lacking. The objective was t characterize thyroid function and metabolism in autistic children.

The diagnosis of autism in a female: could it be Rett syndrome?

We compared the symptoms and genetic characteristics of girls with Rett syndrome and both with and without initial diagnosis of autism.

Patterns of sensory modulation by age and sex in young people on the autism spectrum

Sensory modulation symptoms form a diagnostic criterion for autism spectrum disorder and are associated with significant daily functional limitations. Utilizing caregiver report on Short Sensory Profile-2 (SSP-2) for 919 autistic children (3–14.11 years), we examined the expression of sensory modulation symptoms by age and sex and investigated the existence of specific sensory modulation subtypes.

Occurrence of psychosis and bipolar disorder in adults with autism: A systematic review and meta-analysis

Evidence suggests that individuals with autism spectrum disorder have increased rates of co-occurring psychosis and/or bipolar disorder. Considering the peak age of onset for psychosis and bipolar disorder occurs in adulthood, we investigated the co-occurrence of these disorders in adults with autism.

Eye Gaze in Autism Spectrum Disorder: A Review of Neural Evidence for the Eye Avoidance Hypothesis

Reduced eye contact early in life may play a role in the developmental pathways that culminate in a diagnosis of autism spectrum disorder. However, there are contradictory theories regarding the neural mechanisms involved. According to the amygdala theory of autism, reduced eye contact results from a hypoactive amygdala that fails to flag eyes as salient. However, the eye avoidance hypothesis proposes the opposite-that amygdala hyperactivity causes eye avoidance. This review evaluated studies that measured the relationship between eye gaze and activity in the 'social brain' when viewing facial stimuli.

Genetic counseling as preventive intervention: toward individual specification of transgenerational autism risk

Although autism spectrum disorders (ASD) are among the most heritable of all neuropsychiatric syndromes, most affected children are born to unaffected parents. Recently, we reported an average increase of 3-5% over general population risk of ASD among offspring of adults who have first-degree relatives with ASD in a large epidemiologic family sample.

The course and prognostic capability of motor difficulties in infants showing early signs of autism

Delays within the motor domain are often overlooked as an early surveillance marker for autism. The present study evaluated motor difficulties and its potential as an early predictive marker for later autism likelihood in a cohort of infants showing early behavioral signs of autism aged 9-14 months. The motor domain was evaluated using the motor subscales of the Mullen Scales of Early Learning at baseline, and at a 6-month follow-up.

A prospective ultrasound study of prenatal growth in infant siblings of children with autism

Numerous studies have observed that a proportion of infants later diagnosed with autism spectrum disorder (ASD) experience accelerated head growth...

Towards a molecular characterization of autism spectrum disorders: An exome sequencing and systems approach

This paper profiles the functional pattern of DNA variants found at a higher rate in patients with autism spectrum disorder (ASD), X-linked intellectual...

A "bottom-up" approach to aetiological research in autism spectrum disorders

Autism spectrum disorders (ASD) are currently diagnosed in the presence of impairments in social interaction and communication, and a restricted range of...