Correlates of malingering

The author presented anonymous questionnaires to 172 patients and 160 medical students to assess the frequency and correlates of malingering in various groups in a medical center on a V.A. campus. The results indicate that sociopaths, drug abusers, and alcoholics are more prone to malinger than other individuals, supporting previous assertions that mental health professionals should have a higher index of suspicion for malingering in these diagnostic groups. Race and age were found to have small but significant correlations with malingering, but at present, this finding must be viewed cautiously. No association was found between somatization disorder and malingering.     

Effect of preacquisition UCS exposure on classical conditioning of the rabbit's nictitating membrane response

Conditioning of the rabbit nictitating membrane response was found to be inversely related to the number (0, 50, 200, 350) and intensity, (0, 1, 3, 5 mA) of preacquisition UCS exposures and directly related to the interval between preexposure and acquisition (0 or 24 hr). The results were discussed in terms of sensory adaptation, habituation, blocking, and emotional reactivity.     

The possible loces of lightness contrast

Evidence that the magnitude of simultaneous contrast depends upon retinal orientation of a stimulus configuration is presented in two experiments. More specifically, the magnitude of contrast was found to be greater for stimuli presented horizontally and vertically than for stimuli presented obliquely. These results were interpreted in terms of a cortical analysis of simultaneous contrast.     

Work values and work interests: Are they the same?

The hypothesis that the VPI and WVI are measuring the same domain based on theoretical similarities was tested using 195 male freshmen students. The data were analyzed by correlational technique including discriminant analysis. The results allow for the interpretation that the VPI and WVI are in fact measuring two distinctive domains.     

When are semantic targets detected faster than visual or acoustic ones?

Duration-discrimination data from an experiment using empty auditory intervals in a two-alternative forced-choice paradigm are presented. The observed functional relationship between standard deviation of the psychometric density function and stimulus duration is shown to be fit significantly better by a Weber’s law model of duration discrimination than by Creelman’s counter model. Both models fail to predict the rapid rise in the Weber fraction observed for durations longer than about 2 sec. However, the Weber’s law model, based on a generalization of Weber’s law, accurately predicts the initial drop in the Weber fraction for very short durations and the observed constancy of the Weber fraction for durations up to 2 sec.     

The treatment of homosexuality by ‘assisted’ covert sensitization

Covert sensitization is a procedure which pairs imagined scenes of an unwanted behavior, such as homosexuality, with scenes aversive to the patient, in an effort to diminish the strength of a given response. It has been employed in the treatment of a host of maladaptive approach behavior (Cautela, 1967). However, only anecdotal or single-case reports (Barlow et al., 1969; Cautela, 1966, 1967; Gold and Neufeld, 1965) have appeared regarding the treatment of homosexuality, and these have been unanimously positive. It was disappointing, therefore, in applying this technique to homosexuals, to find it ineffective. One patient complained that the stimuli ‘were not strong enough’. Another could not adequately visualize noxious scenes. This report describes our development of a bolstered from of covert sensitization, demonstrates its application to the treatment of homosexuals and provides follow-up data to evaluate the adequacy of such treatment.     

A developmental study of the effect of familiarity on short-term visual memory

An attempt was made to specify whether previously reported limitations on young children's full-report capacity lay in a smaller amount of available information, in a shorter trace duration of information in visual information storage (VIS), or in poorer coding of information into permanent storage. Five- and 8-year-olds and adults were shown an eight-item array of figures. followed at varying intervals by an indicator signaling the subject to report the figure to which the indicator had pointed. The effects of three levels of familiarity or “labelability” were examined. While no age differences were revealed in amount of information available nor in the trace duration of information in VIS, strong age differences emerged in coding of information into permanent storage. Data on latency to verbal labeling and familiarity suggested that verbal labeling could not account for the age trends. Rather, the differences seemed to lie in the use of organized visual coding and rehearsal strategies by adults and their relative lack of use by children.     

Effects of gaze, touch, and use of name on evaluation of “Engaged” couples

Videotapes were made of actors playing the role of engaged couples in an ostensible interview with a research psychologist. Couples either gazed at each other or did not gaze, used each other's name five times or not at all, and touched each other or did not touch. The videotaped interviews were shown to groups of introductory psychology students for ratings on ten polar adjective scales. Gaze proved to be the most important variable, with gazing couples rated significantly more positively than non-gazing couples on all dimensions. Touching couples were rated more favorably than non-touching couples and name using couples received less favorable ratings than non-name using couples. Results of the study were related to equilibrium theory and discussed within the framework of other research relating nonverbal variables to interpersonal attraction.     

Pattern alternation: Effects of spatial frequency and orientation

Campbell and Howell (1972) reported an effect called “monocular pattern alternation.” They found that a pattern composed of two orthogonal sinusoidal gratings, one horizontal and the other vertical, underwent rivalry when viewed monocularly for a period of time. In the present study, it has been shown that monocular pattern alternation depends upon the orientation of the pattern and the spatial frequency of its components. Fewer reversals were found for an obliquely oriented pattern than for a pattern with components in the horizontal and vertical meridians. Alternation rate was higher when the gratings were similar in frequency but differed in orientation than when the components of the pattern differed in both dimensions. It was concluded that pattern alternation reflects an antagonistic interaction between interdependent channels in the human visual system that respond to orientation and spatial frequency.     

Adding the dimension of color to computer-generated displays

A low-cost system that permits existing computer-generated displays on a black and white CRT display to be reproduced in one of several colors on a color TV receiver is described. A black and white TV camera monitors the computer display, and the camera RF signal is sent to the color TV receiver, which has its three color guns under computer control through an interface unit described herein. In a simple on or off arrangement using three computer output relays, seven distinct and readily identifiable colors are available. With the use of D/A converters, the interface unit is voltage controlled, permitting both faster control and many more hues to be obtained.