Coping among children and adolescents with chronic illness

The present study was aimed to investigate age and gender effects on coping with everyday stressors among children and adolescents with chronic illness and healthy controls. Patients (8–13 years of age) with asthma (n=47), atopic dermatitis (n=52), and cancer (n=57) were compared to healthy controls (n=158) matched by age, gender, and grade. Self-report data on coping with academic and interpersonal stressors were collected. The primary results indicated that coping with everyday stressors was improved in children and adolescents with chronic illness compared to healthy controls. Thus, patients reported less passive avoidance on cross-situational coping and tended to show more situation-specific coping with social and school-related stressors than healthy controls. Additionally, among the clinical groups, patients with atopic dermatitis and cancer scored higher on positive self-instructions than patients with asthma. Conclusively, the results suggest that coping with a chronic illness may lead to more effective coping with everyday stressors. Implications for evaluating coping styles in patients with chronic illness are discussed.     

A behavioral frequency discrimination paradigm for use in adult primates

A psychophysical apparatus and procedure that can be used to define the performance and estimate the thresholds of frequency discrimination in adult primates is described. This protocol has been used to train adult owl monkeys to discriminate differences in the frequencies of successively presented sinusoidal tactile stimuli delivered to a restricted skin surface of a single digit, and to train a second set of adult owl monkeys to discriminate. differences in frequencies between paired auditory tonal stimuli. The thresholds estimated with this procedure are comparable to those measured in other primates. The advantages of using this procedure for combined behavioral and physiological studies are discussed.     

The timing of verbal/vocal communications between mothers and their infants: a longitudinal cross-cultural comparison

Early dialogues between parent and child constitute an important factor for the acquisition of culture and hence verbal interaction is considered to be a universal parenting system. Parenting strategies and socialization practices are strongly influenced by the cultural conception of the self, prototypically defined as the model of independence and interdependence. Our study focuses on the temporal organization of spontaneous verbal/vocal behavior of 20 German middle-class and 28 Cameroonian Nso mother–infant dyads. The infants and their mothers were observed weekly in a 5 min free-play interaction scene from 0 to 3 months of age. We hypothesized to find different amounts of vocalization time, synchronous vocalizations, and contingent maternal responses in the verbal/vocal patterns of the two samples. The findings indicate cross-cultural differences in the temporal structure of verbal/vocal interactions already during the first three months of life, reflecting underlying differences in the culture-specific modes of verbal interaction.     

Cellular spaces

This paper is an introduction into the theory of cellular spaces. From the more general model of nets of abstract cells which are interpreted by finite automata, it is shown how the model of cellular spaces is achieved by specialization. Cellular spaces are extremely homogeneous in function and in geometry. The relation between local and global behavior is regarded as the main topic of the theory. After a formal definition of cellular spaces, it is shown that not all functions of the configuration space are induced by cellular spaces. In addition, the Garden-of-Eden problem is discussed, and a simple self-reproduction property is explained.     

Loneliness predicts suicidal ideation and anxiety symptoms in long-term childhood cancer survivors

Background/ObjectiveLong-term childhood cancer survivors (CCS) are at risk for adverse late effects. However, not all of them are well understood. The present study addressed loneliness, a previously under-researched mental health risk in cancer survivor populations. We assessed the prevalence of loneliness and its impact on psychological symptoms over time. Method: A registry-based sample of N = 633 adult long-term CCS underwent medical and psychological assessments and took part in a follow-up survey 2.5 years later. Psychological symptoms (somatic, anxiety, depression symptoms, and suicidal ideation) were measured using the Patient Health Questionnaire. We calculated linear regression models of symptoms at follow-up to investigate the impact of loneliness over time (controlling for symptoms at baseline and relevant confounders). Results: Loneliness was reported by 17.70% of CCS. In multivariate linear regression analyses, loneliness was still predictive of more severe anxiety symptoms and suicidal ideation over two years later. Loneliness did not predict somatic and depression symptoms at follow-up (which increased with age). Conclusions: Loneliness affected a significant number of CCS and was a risk factor for persistent anxiety symptoms and suicidal ideation. The extent to which young cancer patients’ re-integration into society is successful could thus have important implications for well-being in adulthood.     

Language learning impairment: Integrating research and remediation

Timing cues present in the acoustic waveform of speech provide critical information for the recognition and segmentation of the ongoing speech signal. Research has demonstrated that deficient temporal perception rates, that have been shown to specifically disrupt acoustic processing of speech, are related to specific language-based learning impairments (LLI). Temporal processing deficits correlate highly with the phonological discrimination and processing deficits of these children. Electrophysiological single cell mapping studies of sensory cortex in brains of primates have shown that neural circuitry can be remapped after specific, temporally cohesive training regimens, demonstrating the dynamic plasticity of the brain. Recently, we combined these two lines of research in a series of studies that addressed whether the temporal processing deficits seen in LLIs can be significantly modified through adaptive training aimed at reducing temporal integration thresholds. Simultaneously, we developed a computer algorithm that expanded and enhanced the brief, rapidly changing acoustic segments within ongoing speech and used this to provide intensive speech and language training exercises to these children. Results to date from two independent laboratory experiments, as well as a large national clinical efficacy trial, demonstrate that dramatic improvements in temporal integration thresholds, together with speech and language comprehension abilities of LLI children, results from training with these new computer-based training procedures.     

Electrical stimulation of human hair follicles via microelectrodes

Trains of electrical pulses were applied to hair follicles on the forearm by microelectrodes with tip diameters less than 5 μ. Clear, painless, vibratory sensations could be evoked by stimulating the middle of a follicle. Exponents of the individual power functions relating vibratory magnitude and electric current ranged from 3.1 to 7.4. Absolute thresholds varied little with pulse frequency but did vary from S to S and from one electrode placement to another. Pitch discrimination was very poor; Ss could not distinguish 40 from 80 pps. Pain was often present, but the manner of its appearance suggested an anatomical segregation between vibratory and pain receptors.