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Sipes, Megan; Matson, Johnny L.; Belva, Brian; Turygin, Nicole; Kozlowski, Alison M.; Horovitz, Max – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
Seizures are fairly common in those with intellectual disabilities. In order to treat these seizures, antiepileptic drugs (AEDs) are often used and in many cases are effective. However, these medications often create a variety of associated side effects. In order to monitor these side effects, measures such as the SEIZES-B have been used. While…
Descriptors: Mental Retardation, Seizures, Epilepsy, Drug Therapy
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Matson, Johnny L.; Belva, Brian; Hattier, Megan A.; Matson, Michael L. – Research in Autism Spectrum Disorders, 2011
Pica is a very serious and often life threatening problem which occurs largely in persons with developmental disabilities. The topic has received sporadic attention from researchers for several decades. This paper reviews definitions, diagnostic implications, causes, prevalence, and assessment methods that have been described in the research…
Descriptors: Developmental Disabilities, Eating Disorders, Behavior Disorders, Symptoms (Individual Disorders)
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Matson, Johnny L.; Beighley, Jennifer; Turygin, Nicole – Research in Autism Spectrum Disorders, 2012
There has been an exponential growth in assessment methods to diagnose disorders on the autism spectrum. Many reasons for this trend exist and include advancing knowledge on how to make a diagnosis, the heterogeneity of the spectrum, the realization that different methods may be needed based on age and intellectual disability. Other factors…
Descriptors: Mental Retardation, Autism, Screening Tests, Diagnostic Tests
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Matson, Johnny L.; Mahan, Sara; Hess, Julie A.; Fodstad, Jill C. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2010
The effect of developmental quotient on symptoms of inattention and impulsivity was examined among 198 toddlers with Autism Spectrum Disorders. There were two levels of developmental quotient: (1) low (less than or equal to 70; n = 80), and (2) typical (greater than 70; n = 118). Symptoms of inattention and impulsivity were assessed using 14 items…
Descriptors: Personality Traits, Conceptual Tempo, Autism, Toddlers
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Rojahn, Johannes; Matson, Johnny L.; Mahan, Sara; Fodstad, Jill C.; Knight, Cheryl; Sevin, Jay A.; Sharp, Brenda – Research in Autism Spectrum Disorders, 2009
Challenging behaviors are common and persistent in persons with autism spectrum disorders (ASDs). Best practices dictate that symptoms of ASD and these co-occurring problems be identified and then treated at the earliest possible age. Having said this, there has been a dearth of available assessment methods to make sure identifications in infants…
Descriptors: Autism, Toddlers, Infants, Pervasive Developmental Disorders
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Matson, Johnny L.; Fodstad, Jill C.; Boisjoli, Jessica A. – Research in Autism Spectrum Disorders, 2008
Rett Syndrome is one of the least commonly occurring autism spectrum disorders (ASD), but certainly one of the most devastating. A genetic profile has been identified, but checklists still have an important role for prescreening, especially before expensive genetic testing, and to provide precise strengths and weaknesses with respect to the core…
Descriptors: Genetics, Profiles, Clinical Diagnosis, Pervasive Developmental Disorders
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Matson, Johnny L.; LoVullo, Santino V.; Rivet, Tessa T.; Boisjoli, Jessica A. – Research in Autism Spectrum Disorders, 2009
A limited number of studies currently exist focusing on comorbid psychopathology of children with autism spectrum disorders (ASDs). Due to the heterogeneity of ASD symptoms, communication deficits, and impairments in intellectual functioning, assessing symptoms of psychopathology is complicated. The "Autism Spectrum Disorders-Comorbidity for…
Descriptors: Autism, Construct Validity, Test Validity, Factor Structure
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Matson, Johnny L.; Fodstad, Jill C.; Mahan, Sara; Sevin, Jay A. – Research in Autism Spectrum Disorders, 2009
Diagnosing autism and PDD-NOS at very early ages has become a major priority in the field of mental health. More recently, researchers have also come to realize the importance of identifying co-occurring conditions of psychopathology in this population. In the present study, 309 children between 17 and 37 months of age who had been identified as…
Descriptors: Psychopathology, Anxiety, Autism, Toddlers
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Matson, Johnny L.; Nebel-Schwalm, Marie – Research in Developmental Disabilities: A Multidisciplinary Journal, 2007
A common covarying group of behaviors with ASD are self-injury, aggression, noncompliance, and stereotypies. These problems and related challenging behaviors are problematic in that they are physically dangerous and can impede learning and access to normal activities. Additionally, they require a considerable amount of resources, and compound the…
Descriptors: Pervasive Developmental Disorders, Behavior Problems, Child Behavior, Children
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Matson, Johnny L.; And Others – Research in Developmental Disabilities, 1997
A study explored the construct of general anxiety in 69 individuals with severe and profound mental retardation and evaluated the validity of the DASH-II anxiety subscale to determine its value in categorizing individuals with and without anxiety. Results indicated only behavioral symptoms associated with anxiety could be reliably assessed.…
Descriptors: Adults, Anxiety, Behavior Problems, Disability Identification
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Mayville, Erik A.; Matson, Johnny L. – Behavior Modification, 2004
Seizures can be debilitating across a number of physical, social, occupational, and personal variables. Given the deficits in all of these areas frequently present in persons with mental retardation, effective assessment and subsequent treatment of seizures is a primary goal for individuals with both mental retardation and epilepsy. To thoroughly…
Descriptors: Seizures, Epilepsy, Mental Retardation, Symptoms (Individual Disorders)