The development of the ability to anticipate--as manifested by preparatory actions and neural activation related to the expectation of an upcoming stimulus--may play a key role in the ontogeny of cognitive skills more broadly. This preregistered study examined anticipatory brain potentials and behavioral responses (reaction time; RT) to…

Theory of mind refers to the ability to attribute beliefs to oneself and others. The present study used a dynamic systems approach to assess how environment may affect the development of second-order theory of mind (e.g., "John knows that Mary knows that he went out yesterday"). Theory of mind is divided into two major dimensions:…

Introduction: Children and young adults with Down syndrome can demonstrate increased behavior problems compared to their typically developing peers through childhood and adolescence. This study aims to: (1) identify common patterns of behaviors in children and young adults with Down syndrome and (2) assess potential medical comorbidities that…

The relationship between preferred objects associated with stereotypy, stereotypic behavior, and accuracy of responding during a counting task by a child with autism was analyzed. Teaching with high-preference objects occasioned more stereotypic behavior and less accurate counting than teaching with medium- and low-preference objects. (Author/DB)

The article describes an observational playroom procedure (Structured Observation of Academic and Play Settings) used for evaluating symptomatic behaviors of hyperactive boys in the clinic setting. Case studies are presented to illustrate the differing pattern of playroom behavior in boys with different types of externalizing disorders. (Author/DB)

This study compared the effects of unequal and equal reinforcer duration during a functional analysis of aberrant behavior in an 11-year old with moderate mental retardation. Results showed that reinforcer duration affects the rate of aberrant behavior and may potentially alter functional analysis interpretation. (DB)

A boy with severe mental retardation was unresponsive to his environment and spent 80% of his day body-rocking. Stereotyped body-rocking was greatly reduced via differential reinforcement of incompatible responding (DRI), physical restraint, and reprimand. (JDD)

The article presents case studies of two males with Attention Deficit Disorder when first referred for clinical evaluation as children with follow-up at age 21. Results indicated consistency in behavior patterns and differences between subjects at referral predicted outcomes as adults. (Author/DB)

Two case examples (a toddler with severe developmental delays and a 7-year old with severe mental retardation) illustrating effects of meal schedule and food quantity on displays of problematic behavior are offered. Brief functional analyses of aberrant behavior provided useful information for interpreting distinct patterns of behavior. (DB)

Self-injurious behavior was examined in a case study of head-banging by an 8-year-old girl with profound mental retardation and an autistic disorder. Trajectories of arm movements and impact forces were determined from dynamic analysis of videotapes. Cycle-to-cycle consistency in the qualitative dynamics of the limb motions and impact forces…

A study of the adolescent and adult manifestations of a childhood nonverbal learning disability focused on the adaptive difficulties of these individuals, deriving from the pattern of neuropsychological abilities and deficits typical of the syndrome, and the high risk of depression and suicide. A case study is presented. (MSE)

Chronotherapy was used to treat severe sleep problems in a girl with mental retardation. Chronotherapy involved systematically delaying the child's bedtime each night while maintaining a regular schedule during waking hours until an age-appropriate bedtime was achieved (in 11 days). Immediate improvements in the child's sleep patterns were…

This case study of two young males (ages 3 and 5) with autism who have preoccupations with feminine activities and objects addresses the establishment of gender identity in children with autism and the need for further study of the complex interplay of environmental and neurobiologic factors affecting gender identity and preoccupations in autism.…

An empirically based paradigm for assessment and taxonomy of child, adolescent, and young adult behavioral and emotional problems is outlined, and the standardization procedures used to assess problems reported by different informants for large clinical samples are discussed. The application of the paradigm to new cases is considered. (SLD)

This qualitative study of rocking in four congenitally blind children, ages 10 to 13, used in-depth interviews, observations, psychomotor assessments, and reviews of school and other records. Findings revealed similarities in the children's early medical histories, delays in motor development, constraints on vigorous movement, and limited peer…