Changes in nonprofessional mental health workers' response preference and attitudes as a function of training and supervised field experience

Nonprofessional mental health workers in a program for early detection and prevention of school maladaptation in children were compared to demographically similar controls on changes in attitudes and clinical response style after 12 didactic training sessions and 3$\text{1}\text{2}$ months of supervised field experience. There were no attitude change differences between aides and controls. Aides, however, came to favor “understanding” responses significantly more, and “rejecting” responses less, than controls. Interpretively, some combination of training, experience, and supervision increased aide knowledgeability without diminishing warmth and spontaneity.     

Discrimination of third-order Markov constraints within visual displays

Discrimination thresholds were measured for third-order Markov constraints within visual displays. The method permits the cancellation of adjacent second-order differences and of first-order differences. Excellent discrimination of third-order constraints is obtained despite the fact that the average conditional repetition probability and the average run length were invariant. The need to distinguish between local short-term and average long-term analyses for the visual system is briefly discussed.     

A nonparametric procedure for evaluation of true and false positives

A procedure is presented for the evaluation of single-point estimates of true and false positives without strong underlying parametric assumptions. The method is based upon the area operating characteristic and the Green area rule. Estimates of sampling error are also available. The procedure is extended to a strong one-parameter relation between true and false positives.     

Out-of-Body experiences in the blind

The theoretical significance of out-of-body experiences in blind people is explored. In this context I report results of a survey of a small sample of blind adults. It is concluded that we have yet to locate a case of an out-of-body experience in the blind that has critical implications for the interpretation of the experience among the general population.Acknowledgement hereby is given to the efforts of Margaret Kerr, Coordinator of Field Services for the Royal Blind Society of New South Wales, Australia, in supervising the collection of data reported in this paper.     

The effect of lateral visual fixation on response latency to verbal and spatial questions

The results of several studies have suggested a relationship between lateral eye movements and contralateral hemispheric activation or ipsilateral inhibition. The present study investigated the effects of lateral and central eye fixation on response latency to verbal and spatial questions. Response latencies for verbal questions were significantly longer when subjects fixated to the left or centrally, as compared to the right. On spatial questions, response latencies were significantly longer in the right fixation condition than in the other conditions. The results indicate that visual fixation ipsilateral to hemispheric activation is related to slower problem solving, and suggest that eye movements during cognitive activity may have functional significance.     

Effect of smooth vs step interval gradients upon interval gap detection

The effect of smooth and step-wise auditory interval gradients upon the discrimination of an interval change, or gap, was studied. Gap discrimination was substantially better with smooth interval gradients than with step gradients when the gap was surrounded by a large number of intervals. This result leads us to ask whether gradiënt phenomena of the Mach-band type are critically dependen t upon the existence of smooth, rather than step, gradients     

The concreteness of attributes in concept learning strategies

Ss were presented with conjunctive concept learning tasks using geometric stimuh in two experiments and using combinations of abstract characteristics in two other experiments. Evidence indicated that the conjunctive hypotheses for geometric stimuli were not mediated by component values but were sampled as unitized wholes. In contrast, conjunctive hypotheses for abstract attributes were sampled via independent combinations of component values. The differential processing was not found to be associated with the variation of stimuli on the verbal-nonverbal dimension.