Development of the perception of musical relations: semitone and diatonic structure

In the present research we examined the development of sensitivity to two musical relations significant in Western tonal music, the semitone and diatonic structure. Infants and preschool children were tested for their detection of a semitone change in any position of a five-note melody. Two standard melodies were used, one composed of diatonic tones only and the other containing a non-diatonic tone. In Experiment 1, children from 4 to 6 years of age were superior in detecting the semitone change in the diatonic context compared with the nondiatonic context. In Experiment 2, infants 9 to 11 months of age detected the semitone change in all positions, but their performance was not influenced by diatonic context. These findings indicate that infants and children can discriminate a semitone in a musical context and that the priority of diatonic structure emerges by 4 to 6 years of age.     

Affective judgments,common sense,and Zajonc's thesis of independence

Zajonc (1980) argued that, contrary to what is commonly believed, an affective judgment about a stimulus may be independent of the cognitive processes through which we know what that stimulus is. The evidence Zajonc offered (the exposure effect in the absence of recognition) does not entail this claim. An example of the sort of experiment that could do so is offered. When carried out, however, this study indicated the opposite: An affective judgment about a stimulus depended on how it was cognitively interpreted. We argue that what is commonly believed in this area is presumptively correct: Affective judgments about a stimulus depend on whatever information is possessed about that stimulus.     

Social skills and the stress-protective role of social support

Cross-sectional analyses of data collected from a large sample of incoming college freshmen were used to determine whether the perceived availability of social support protects persons from stress-induced depressive affect; whether social competence, social anxiety, and self-disclosure are responsible for the stress-protective effect of perceived social support; and whether these social skill measures discriminate among persons for whom support will help, hinder, or be ineffective in the face of stress. Prospective analyses based on the original testing (beginning of school year) and 11- and 22-week follow-ups of a randomly selected subsample were used to determine how the same social skill factors influence the development and maintenance of support perceptions and of friendships. Evidence is provided for a stress-buffering role of the perceived availability of social support. The stress-buffering effect is unaffected by controls for the possible stress-protective influences of social anxiety, social competence, and self-disclosure. Although these social skill factors do not discriminate among persons for whom support will help, hinder, or be ineffective, they are prospectively predictive of the development of both social support and friendship formation. These prospective relations between social skills and the development of perceived availability of social support are only partly mediated by number of friends.     

Internal versus external references with respect to perception of stimuli on the body surface

Previous studies on the determinants of locus of perception of stimuli on the body have suggested that the position of the stimulus has a significant effect whether a subject perceives a tactile pattern as seen from inside or outside the body. However, it is possible that previous investigators confounded stimulus location--dorsal or frontal--and experimenter's position--behind or in front of the subject. Using 42 male subjects in a 2 X 2 design, the effects of experimenter's position and stimulus location were studied by a new technique for inferring locus of perception. Experimenter's position, rather than stimulus location, affects subjects' locus of perception. Perception of stimuli on the body involves three independent factors, the demand characteristics of the experiment, the manner in which an individual perceives the boundaries of his own body, and an individual's ability to adopt the experimenter's perceptual standpoint.     

Social reinforcement: A treatment component in verbal self-instructional training

This study investigated the effects of noncontingent social reinforcement on social and academic behaviors in grade school children. Twenty-four children in the second through fifth grades were selected on the basis of teacher ratings of disruptive behavior. Subjects were divided into (a) a high social reinforcement verbal self-instructional (VSI) training group, (b) a low social reinforcement VSI group, and (c) a no-contact control group. Children in VSI groups were removed from their classrooms during four 40-minute periods and given VSI training. Significant between-groups differences on measures of social reinforcement were found indicating its successful manipulation. While none of the dependent measures indicated significant differences between experimental groups, a consistent pattern of difference scores emerged giving limited support to the hypothesis that noncontingent social reinforcement contributed to behavioral gains. Results are discussed in terms of the need for future research on the effects of rapport on treatment outcome.Both authors wish to express their thanks to the Missoula public school administration, principals, psychologists, and teachers. Appreciation is also due to Matthew Firpo and Anita Fisher for their help in this project.     

The experiential loci and sensory qualities of various emotions

Sixty-nine university students were asked to describe the sensations and to identify the loci of those sensations for 34 emotions. The methods of reporting were introspection, retrospection, and recollection. There was no evidence that any method was consistently better than the others. Also, there was no evidence that the reports given were the result of social or linguistic convention rather than reports of actual sensory experience. Cochran's Q test showed that, within each emotion, the kinds of loci cited differed significantly, and that for all but one locus, the frequencies for the emotions differed significantly. Principal component analysis showed six locus factors clustered on stomach, face, head, heart, hands-heart, and eyes. Although not distinctive for all emotions, there were characteristic patterns of sensory loci and sensory qualities as shown by high frequencies of citation. It is suggested that these loci and qualities are one of several components of experienced emotion. The results are seen as supporting subjective or phenomenological studies of emotion, and are discussed with special reference to facial feedback theories of emotion.This research was supported, in part, by a grant from the President's Research Fund of Simon Fraser University.     

Cross-examination of the expert witness: Do hostile tactics affect impressions of a simulated jury?

Ninety-one introductory psychology students viewed a videotape of a simulated personal damage trial in which a psychologist expert witness testified about a plaintiff's psychological problems resulting from trauma. The defense attorney's cross-examination tactics, employed against the expert witness, were varied in the videotape. A 2 × 2 factorial design was used, with leading versus nonleading questions and a hostile versus nonhostile attorney. An interaction effect was obtained, in which a hostile attorney using leading questions and a nonhostile attorney using nonleading questions were perceived as least effective.     

Asymmetry in visual search for targets defined by differences in movement speed.

Perception of motion speed was investigated with the visual search paradigm, using human Ss. When searching for a fast target among slow distractors, reaction time was minimally affected as the number of distractors was increased. In contrast, reaction time to detect a slow target among fast distractors was slow and linearly related to the number of distractors. The effect cannot be attributed to differences in temporal frequency, discriminability, or one type of representation that might result from spatiotemporal filtering. An alternative hypothesis that can account for the asymmetry is that speed detectors operate as high-pass filters in the velocity domain. This hypothesis is in agreement with results obtained in psychophysical studies on motion adaptation as well as data from single-cell recordings in nonhuman species.     

DATING, DRINKING, AND RAPE: Effects of Victim's and Assailant's Alcohol Consumption on judgments of Their Behavior and Traits

Effects of an acquaintance rape victim's and her assailant's alcohol consumption on judgments of their behavior and traits were examined in a 2 × 2 × 2 between-subjects factorial experiment. Sixty-eight women and 64 men, 21 or older, read one of four stories in which only the victim, only the assailant, both victim and assailant, or neither victim nor assailant consumed alcohol. One individual difference trait, rape attitudes, was also measured. The interaction of victim and assailant drinking diminished the view that a rape had occurred and that the victim responded negatively, whereas it enhanced judgments of the assailant's likability and sexuality. The portrayal of only the victim drinking resulted in a more negative view of the assailant's behavior and traits. Evaluations of the victim depended on the assailant's drinking behavior rather than on her own. Implications for treatment of rape victims and establishing assailant accountability are discussed.