Behavior Problems at 5 Years of Age and Maternal Mental Health in Autism and Intellectual Disability

We examined child behavior problems and maternal mental health in a British population-representative sample of 5 year-old children with an autism spectrum disorder (ASD), controlling for the presence of an intellectual disability (ID). Behavior problems were significantly higher in children with ASD with/out ID compared to typically developing children, but compared to children with ID only hyperactivity was significantly higher in children with ASD/ID. After controlling for ID and maternal mental health, the presence of ASD significantly increased the odds for hyperactivity, conduct problems and emotional symptoms. Negative maternal outcomes (serious mental illness, psychological distress, and physical health limitations) were not consistently elevated in ASD. The findings highlight the early age at which behavior problems emerge in ASD, and suggest that at this age , there may not be a clear disadvantage for maternal mental health associated with having a child with ASD in the family, over and above that conferred by child behavior problems.     

The Panel Study on American Religion and Ethnicity: Background, Methods, and Selected Results

Surveying 2,610 respondents, the Panel Study of American Religion and Ethnicity is a nationally representative in-home survey of the noninstitutionalized U.S. adult population. The survey is designed to (a) focus primarily on religion and spirituality (with over 200 questions on these topics), (b) include multiple other modules (such as health, family relationships, and social ties), (c) oversample African Americans, Asians, and Hispanics, and (d) follow the same respondents over time. We describe the main design features of the survey, present some characteristics of the sample, and provide basic findings. It is our hope that these data will foster more research and contribute to a better understanding of the role and meaning of religion in the contemporary United States .     

An application of bi‐logical theory to the study of psychic change and mourning4

The authors propose that the process of psychic change involves the ‘working through’ of mourning for the loss of ‘theories of life’ that are based on narcissistic omnipotent beliefs. These theories need to be changed by other more realistic ones regarding how to resolve the inherent and natural problems of existence. Questioning the ‘truth’ of these theories of life, as well as the acquisition of the perception of the existence of time, makes up part of the process referred to, and this applies to the analyst in a certain way as much as to the patient. Such problems are lived, re‐edited and revised in the transference/countertransference relationship. The authors present a clinical illustration. They explore the concepts of symmetry, asymmetry, homogenization and differentiation in MatteBlanco's bi‐logical theory and propose that these are important to the comprehension of the dynamic of the psychic changes which occur in a non‐static analytic process.     

A honeycomb data array for simulating visual processes using the C programming language

A method of simulating visual processes is formulated as a C language program. The two-dimensional image array has a honeycomb structure, in which each cell has six immediate neighbors. A general iterative simulation method that represents changes in time is used. The method is illustrated with tests of Horn’s (1974) model of the retinex lightness process of Land and McCann (1971) and of a modified form of that model.     

Measurement of low-signal suppression and other parameters of the forced-choice psychometric function

Empirical forced-choice psychometric functions often depart in shape from those based on the theory of normal sensory-excitation distributions and optimal decision processes. The typical departure is that the detectability of small signals is too low compared to that of high signals. Some possible explanations were reviewed and it was emphasized that the source of the effect is not known with certainty. An extra parameter resembling a threshold was introduced for the measurement of the effect, and a method of moments was proposed for estimating the two parameters of the resulting two-alternative forced-choice psychometric function. The method was tried out with success in the task of detecting a 0.1-sec luminance increment to a steady adapting luminance of a large visual target. There were large amounts of low-signal suppression, indicating the advisability of reviewing some current psychophysical practices.     

Effects of rate of signal rise and decay on reaction time to the onset and offset of acoustic stimuli

This study assessed the effects of variations in signal rise-decay time on response latencies to the onset and cessation of a 1,000-Hz tone. Onset and offset reactions were combined factorially with five rates of signal rise-decay (0.5, 5, 25, 100, and 250 msec) to produce a total of 10 experimental conditions. Offset RTs were significantly longer than onset RTs when the rise-decay time of the tone was 250 msec. Disparities in speed of reaction to tone onset and cessation were negligible at the remaining rates of signal rise-decay.