Manifest anxiety and two-point threshold sensitivity.

The present study utilized 27 college students (14 females, 13 males) to investigate the effects of anxiety upon the ability to attend to detail (two-point threshold sensitivity). It was hypothesized that subjects both low and high in anxiety would have a smaller threshold than mild or moderately anxious subjects. A curvilinear correlation of .83 (p less .01) was obtained between anxiety scores and two-point threshold sensitivity. There was no significant difference between mean thresholds for those scoring above or below the median on the anxiety scale. Suggestions for further research are discussed.     

Time, rate, and conditioning

The authors draw together and develop previous timing models for a broad range of conditioning phenomena to reveal their common conceptual foundations: First, conditioning depends on the learning of the temporal intervals between events and the reciprocals of these intervals, the rates of event occurrence. Second, remembered intervals and rates translate into observed behavior through decision processes whose structure is adapted to noise in the decision variables. The noise and the uncertainties consequent on it have both subjective and objective origins. A third feature of these models is their timescale invariance, which the authors argue is a very important property evident in the available experimental data. This conceptual framework is similar to the psychophysical conceptual framework in which contemporary models of sensory processing are rooted. The authors contrast it with the associative conceptual framework.     

Manifest anxiety and fearfulness in children and adolescents.

The relationship between self-reported fear and anxiety was examined in a large sample of normal Australian children and adolescents. Participants completed the Fear Survey Schedule for Children--Revised (Ollendick, 1983) and the Revised Children's Manifest Anxiety Scale (Reynolds & Richmond, 1978). Following an examination of the internal consistency of these instruments, correlational analyses were conducted on anxiety and fear scores. Fear scores were shown to be sensitive to anxiety, sex, and age groups. Furthermore, discriminant analysis showed that high-anxiety children indicated a greater fear of items related to failure and criticism than did low-anxiety children. Other issues, including the content overlap between the two scales used in the investigation, are discussed.