Spectral sensitivity of the Sooty mangabey

Purkinje shift and scotopic and photopic spectral sensitivity functions were determined for four Sooty mangabeys and five human controls using a flicker technique in a four-choice discrete trials task. Results-indicate a Purkinje shift similar in magnitude and frequency locus to that of human controls. Scotopic spectral sensitivity was almost identical to that of human controls, although both species showed reduced sensitivity relative to the standard CIE function, -at short wavelengths. Photopic spectral sensitivity disclosed enhanced sensitivity in the blue and reduced sensitivity (0.3–0.4 log units) in the red relative to human controls.     

Counseling with Elementary School Children: An Experimental Study

An attempt was made to assess results of counseling with fourth-grade students, using sociometric status as the criterion. A sociometric device was administered to four fourth-grade classrooms. Students of low sociometric status were randomly assigned by classrooms to one of three treatment conditions: (1) counseling, (2) teacher guidance, and (3) control. When treatment conditions were compared, the evidence seemed to indicate significant differences in the relative frequency with which subjects increased or decreased in sociometric status, that the differences favored the counseling condition, and that these differences persisted over a period of seven months. The possibility of a temporary teacher influence on the sociometric criterion was indicated.     

Finding lung nodules with and without comparative visual scanning

The effect of a pretarget (TS1) masked by a noise mask (MS) upon the recognition of a posttarget (TS2) was examined in a TS1-MS-TS2 paradigm. The results clearly showed that the presentation of TS1 masked completely by MS reduced the recognition of a subsequent TS2 to a much greater extent if TS2 was the same as TS1 than when it was not. The results suggest that a TS1 that is perceptually masked by an MS nevertheless continues to have an effect within the visual system. A possible explanation of this reductive effect is described briefly.     

Caregivers’ perspective of the child support grant in South Africa: An exploratory study

This study explored caregivers’ perceptions of the South African Child Support Grant as a poverty alleviation instrument. Informants consisted of 72 caregivers who were purposively selected through the snowball method (female = 99%; single parent = 71%, blacks = 100%). They completed a survey based on their perceptions of the Child Support Grant. Thematic analysis applying the happiness or wellbeing approach to poverty revealed that caregivers find the Child Support Grant to be a family stress reliever by providing basic essentials for living. In addition, caregivers indicated the presence of inefficiencies in the administration of the grant. Findings suggest that the Child Support Grant has a buffering effect on poverty-stricken households in South Africa.     

A discriminated rapid-acquisition laboratory procedure for human continuous choice

Previous continuous choice laboratory procedures for human participants are either prohibitively time-intensive or result in inadequate fits of the generalized matching law (GML). We developed a rapid-acquisition laboratory procedure (Procedure for Rapidly Establishing Steady-State Behavior, or PRESS-B) for studying human continuous choice that reduces participant burden and produces data that is well-described by the GML. To test the procedure, 27 human participants were exposed to 9 independent concurrent random-interval random-interval reinforcement schedules over the course of a single, 37-min session. Fits of the GML to the participants' data accounted for large proportions of variance (median R²: 0.94), with parameter estimates that were similar to those previously found in human continuous choice studies [median a: 0.67; median log(b): -0.02]. In summary, PRESS-B generates human continuous choice behavior in the laboratory that conforms to the GML with limited experimental duration.     

Contents: Volume 29

This paper describes our experience in treating nearly 200 eating disordered patients ages eleven to thirty-five in five ongoing, open groups combining inpatients and outpatients. A limited outcome study of 121 patients who attended group regularly is presented. Guidelines are offered for group formation, referral to group, function of the therapists, group themes, and management of specific problems arising during the group. Our experience suggests broader applicability of group treatment for eating disorders than previously reported. The age and developmental level of the patient is a more important consideration in group placement than the nature or severity of their eating disorder. More vigorous and longer term follow-up studies are necessary to determine the lasting benefits of group psychotherapy for this patient population.