The effect of a supervisory development program on leadership style

The purpose of this study was to investigate the effect of a supervisory development program on leadership style, conceptualized as the amount of consideration and structure demonstrated by supervisors. One hundred male supervisors of a government railways department were randomly selected and then assigned randomly to either receive training (n=50) or not to be trained (n=50). The program was a 22-week residential course, training participants in human relations and structuring skills. Measures of the supervisors' consideration and structure were obtained from 100 male subordinates of the supervisors 4 weeks prior to, and 2 months after, training. At pre- and post-test, supervisors in the experimental and control groups rated the amount of consideration and structure they felt they should use. Analysis of variance with significant interaction effects revealed that the training program enhanced self and subordinate-rated consideration and structure.     

Sex differences in attraction to infants: When do they occur?

Harlow (1971) observed that all-female college audiences responded to a pictured infant rhesus monkey with an “ecstasy response,” while males were “completely unresponsive,” and females in coeducational audiences “inhibited the ecstasy response,” explaining these differences in terms of innate sex differences. The present study compared college students' self-reported attraction to pictures of 15 infant and adult nonhuman primates under several conditions. Infant pictures were of two types: infants which were engaged in typical infant behaviors (Infant Behavior), and those which were not (Infant). Subjects made judgments in same- or mixed-sex groups and reported degree of attraction publicly or privately. Ratio scores were used to represent each subject's attraction to infant or infant-behavior pictures compared with his or her attraction to pictures of adults. There were no significant sex differences in attraction to infant or infant-behavior pictures, and sex did not interact with any other variable. However, situational variables significantly affected the response. Males as well as females reported greater attraction to infant and infant-behavior pictures when they viewed the pictures in same-sex compared with mixed-sex groups. Both sexes reported greater attraction to infant and infant-behavior pictures privately than publicly.     

Stimulus probability and prediction outcome as determinants of choice reaction time: Some procedural considerations

Effects of stimulus probability and prediction outcome on two-choice reaction speed (CRS) were determined when a frequency imbalance was reversed half-way through 300 samples of a 70/30 stimulus distribution and when the same 70/30 distribution was sampled for 1200 trials. Prior to each presentation Ss made a prediction; following each presentation Ss identified the stimulus by pressing a right-hand or left-hand trigger. CRS was faster to correctly predicted stimuli, and faster to the more probable stimulus. Ss who were informed of the frequency imbalance reacted significantly faster than Ss who were not. Both practice and boredom effects were demonstrated by using the extended number of trials. CRS was faster during the second session of 300 trials than during the first; after two sessions, CRS was slower during the second half of two additional sessions.     

Emotional arousal and persuasion effects in flooding

The effects of a single session of imaginal flooding were studied in female students unable to touch a harmless spider. All combinations of continuous vs. discontinuous presentation and highly arousing vs. less arousing material were used in a factorial design, to test the hypothesis that highly arousing material is beneficial only when presented under massed conditions. Results were clearly against prediction and suggested that immediate attitude change was maximal following less arousing material, irrespective of method of presentation; while behaviour change was greatest when less arousing material was presented continuously.

In a second experiment, subjects were exposed to both types of theme material in either a low-high or a high-low order. Some evidence was found for the postulated attitude changes and contrast effects, which favoured the use of a high-low order. Possible explanations for earlier contradictory evidence, and implications for clinical treatment are discussed.     

Effects of musically evoked affect on women's interpersonal attraction toward and perceptual judgments of physical attractiveness of men

In a between-subjects design, female subjects evaluated photographs of attractive and unattractive stimulus males while listening to positive affect-evoking rock music, negative affect-evoking avant-garde music, or no music at all. Consistent with previous research, subjects evaluated attractive stimulus males more positively than unattractive males on a variety of interpersonal judgment dimensions. Furthermore, subjects responded with more positive evaluations of personal character of, and attraction toward, stimulus persons in the rock music as compared to the avant-garde music condition. Finally, assessments of physical attractiveness were influenced by the music conditions, with stimulus persons judged of greater physical attractiveness in the rock as compared with the avant-garde music condition. The results are discussed in terms of extending the Byrne-Clore reinforcement-affect model of interpersonal attraction.     

Information available In brief tactile presentations

Two experiments investigated characteristics of Immediate recall for brief tactile stimuli applied to the 24 interjoint regions of the fingers of both hands (thumbs excluded) The obtained Immediate-memory span varied from 35 to 7,5 stimulus positions correct after correction for guessing, similar to the results In analogous visual studies, Properties of any hypothetical tactile short-term memory were studied by requiring subjects to report only a specified portion of the stimuli presented, and by varying the time of occurrence of the marker specifying which portion of the stimuli to report, In this partial-report condition, subjects had more stimulus information available at the time of reporting than their immediate memory spans indicated, provided that the stimulus marker occurred within 0.8 sec after stimulus termination, The data suggest that at least for the amount of training employed here, any tactile short-term memory has much less capacity than an analogous visual short-term memory.     

The Mezzich MMPI regression formula revisited

In a sample of depressed psychiatric inpatients, the Mezzich regression formula, based on five MMPI scales, correlated moderately with clinicians' judgments and yielded few false negative diagnoses in identifying patients with unipolar Major Depressive Disorder, but was less effective in eliminating false positives.     

A revised analysis of the role of efference in motion perception

The analysis of motion perception historically has included efferent as well as afferent mechanisms to account for the perception of motion during eye movement. The application of efferent mechanisms to motion perception has been limited, however, by several illusions which are apparently inconsistent with the notion that oculomotor mechanisms contribute to motion perception. An alternative account is presented of the manner in which efference may contribute to the perception of motion. It is proposed that distinct smooth eye-movement systems contribute differentially to object motion perception. Specifically, activity in the smooth pursuit system gives rise to the perception of object motion, whereas activity in the smooth component of reflexive eye movements does not. Tracking of a moving object results in object motion perception as a result of efference in the pursuit system. However, the pursuit system may be activated to oppose the smooth component of reflexive eye movements in order to preserve fixation on a stationary object. In such cases neither the fixated object nor the eye is moving but illusory movement results from the efference in the pursuit system. A number of illusory movement phenomena are interpreted in terms of this model.