Discusses the diagnosis and management of "non-24-hour sleep-wake syndrome," a form of cyclic insomnia to which people who are totally blind are prone. Covered are incidence and clinical features, formal diagnostic criteria, the biological basis of circadian sleep disorders, circadian rhythms in blind people, pharmacological entrainment,…

A study investigated the incidence of autism in 20 patients with tuberous sclerosis complex (TSC). The prevalence of autistic disorder was conservatively estimated at 20%. Data suggest a possible association between both hypsarrythmia and TSC-related cardiac abnormalities with autism in this subgroup of individuals with TSC. (Author/CR)

This article discusses Charles Bonnet syndrome (CBS), a disability in which the individual has visual hallucinations that are complex, persistent, or repetitive, retains full or partial insight into the unreality of the hallucinations, does not have hallucinations in other modalities, and does not have delusional ideation. (Contains 12…

Explores the incidence of attention deficit hyperactivity disorder (ADHD) among gifted students, the effects of drug therapy, and environmental conditions that may cause or influence ADHD-like behaviors in high ability students. Diagnostic and intervention strategies are suggested to counteract environmental contributors to the problem. (Author/CR)

Prevalence rates of epilepsy are much higher among persons with developmental disabilities compared to the general population. Anticonvulsant medication is the most common method of treating seizure disorders. Many of these antiepileptic medications (AEDs) are associated with various side effects, which may have detrimental effects on the social…

We have used multiple sources to identify a population-representative cohort of newly diagnosed patients with parkinsonism and Parkinson's disease in the UK over a 2-year period. All patients have been invited to participate in a detailed clinical assessment either at home or in an outpatient clinic. These assessments have been used to refine…

This paper compares the incidence of the diagnosis of Autistic Spectrum Disorders (ASD) among White and Asian children with reference to data obtained from thirteen local education authorities (LEAs) in England. It begins by outlining some of the theoretical debates associated with the definition, diagnosis and prevalence of ASD. The empirical…

The literature review considers characteristics of autism in three general areas of impairment: communication; cognition; and social behavior. Briefly noted are incidence and etiology facts. A variety of definitions are presented including a psychiatric definition, Leo Kanner's definition, and the definition of the Autism Study Committee of Iowa.…

Incidence rates are critically examined in light of varying definitions of what constitutes elder abuse. It is suggested that the clinician's position of mandatory reporting is an unrealistic response in many cases of elder abuse due to the lack of adequate support services for either the abuser or the elder. Outcome studies are used to support…

The authors describe personal experiences with Usher's Syndrome, a condition involving visual impairment (due to Retinitis Pigmentosa) and deafness. Prevalence and onset of Usher's Syndrome are described along with characteristics of two different types. Problems connected with diagnosis are reviewed, including genetic aspects and the progressive…

The booklet provides background information on the diagnosis and characteristics of autism. A chart portrays the signs and symptoms, followed by the definition of the syndrome by the National Society For Children and Adults with Autism. Associated features are noted along with information on age of onset, etiology, incidence and sex ratio,…

Summarized are the presentation of M. Vernon and the Comments of primary panelists from a seminar on Usher's Syndrome, a genetic disease involving congenital deafness and progressive loss of vision due to retinitis pigmentosa. The following topics are addressed: genetics today, nature of Usher's Syndrome, symptoms, prevalence, lay diagnosis for…