Minority influence and musical preference: Innovation by conversion not coercion

Studied the effect of social categorization, strength of influence and predisposition to influence on social influence concerning musical preferences. One-hundred and sixty-eight French adolescents (age 15 years) were assigned to the eight conditions of a 2 (social categorization: majority/minority) × 2 (strength of influence: strong/weak) × 2 (predisposition to influence: pervious/impervious) design. Influence source was an opinion poll based on pupils from two types of secondary school. Direct influence was exerted from ‘hard-rock’ to ‘new wave’ music; indirect influence was measured by subjects' preferences for hard-rock versus ‘contemporary’ music. Ratings of the source were also elicited. Analyses of variance revealed indirect influence to be significantly greater with the minority than the majority source (p < 0.02). Indirect influence was especially high for subjects with a clear predisposition to influence and when the influence was weak (p < 0.0005). Further analyses confirmed the effect to be due to the actual numbers of subjects influenced. The study thus demonstrated the generalizability of the ‘conversion’ notion (minority influence on an indirect level) from numerical to social minorities.     

Stimulus generalization of schedule-induced polydipsia

Five rats were exposed to an intradimensional discrimination by associating two tones of different frequency with the components of a multiple random-time 30-sec, extinction schedule of food presentation. After schedule-induced polydipsia developed and the intermittent schedule of food presentation established stable differential licking rates during the stimuli associated with the multiple schedule, a stimulus generalization test was conducted. When generalization testing was conducted by presenting stimuli that varied on the frequency dimension during the random-time 30-sec component of the multiple schedule, all five rats demonstrated moderately sloping symmetrical gradients. Thus, schedule-induced polydipsia can be brought under the control of stimuli other than the food pellet.     

Selection of verbal probabilities: A solution for some problems of verbal probability expression

A method for verbal expression of degree of uncertainty is described. It requires the subject to select a phrase from a list that spans the full range of probabilities. In a second, optional, step, the subject indicates the numerical meaning of each phrase. The method avoids two problems of verbal probabilities—the indefinitely large lexicon and the individual differences in the interpretation of words. To test whether context and ordinal position might bias subjects' selection or interpretation of the verbal expressions in the list, the list order was varied. When the verbal expressions were arranged in random order, ordinal position had a significant effect on the selection of expressions. However, these effects did not occur when the phrases were listed in ascending or descending order. Considerations of accuracy and interpersonal agreement also support the use of ordered phrase lists.     

The mind reduced to molecules?

According to Bickle, certain empirical results demonstrate that the bottom-up reduction of phychological concepts to the concepts of neuroscience has already been accomplished. I argue that this conclusion is hasty. Bickle claims that all high-level investigations depend on a mistake. I argue that this overstates the explanatory character of neuroscientific findings. Bickle's assessment is highly optimistic, but he is far from making a decisive argument. Those who wait for a full-blown reductionism will have to wait a little longer.     

Individual differences in patterns of developmental opportunity and constraint during COVID-19: Implications for longitudinal well-being

Individual differences in sociodemographic characteristics and trait-like perceptions of opportunities and constraints may shape how people respond to adversities such as the COVID-19 pandemic. However, little is known about how these factors combine to form multifaceted profiles of developmental opportunity and constraint or the implications of such profiles for longitudinal well-being following major life stressors. Using 1-year data from a national sample of U.S. adults (n = 293), we identified profiles based on relevant sociodemographic characteristics (age, socioeconomic status, chronic conditions, functional status) and trait-like perceptions of opportunity and constraints (perceived mastery, perceived constraints). Results of latent profile analyses showed that three common profiles emerged at pandemic onset (veridical opportunity, perceived constraints, perceived opportunity). Subsequent latent growth models showed that, despite reporting more sociodemographic constraints, the perceived opportunity profile exhibited better 1-year emotional well-being (positive and negative affect) during the pandemic than the perceived constraints profile. Findings advance the literature by identifying multifaceted individual differences in profiles of developmental opportunity and constraint and by showing these profiles have consequences for longitudinal well-being following the pandemic onset.     

The Association Between Female College Students' Reports of Depression and Their Perceptions of Parental Attitudes Regarding Gender

This study related female college students' ( n = 377) reports of symptomatology to their reports of parental attitudes suggesting limitations inherent in being female. Young women completed a scale measuring their perceptions that their fathers would have been prouder of them if they were male, and a scale measuring their distress over the limitations experienced by their mothers. Respondents who scored high on either scale exhibited much higher prevalence than other respondents of self-reported depression accompanied by anxiety, somatic symptoms including headaches, insomnia, dyspnea, fatigue, disordered eating, and poor body image/preference for thinness (labeled anxious somatic depression ). Compared to men ( n = 191), women exhibited much higher prevalence of anxious somatic depression, but not higher prevalence of depression unaccompanied by the other symptoms.     

Sensitization and aversive conditioning: Effects on the startle reflex and electrodermal responding

Animal data suggest that shock sensitization as well as aversive learning potentiates the acoustic startle reflex. The present experiment tested, whether this shock sensitization also occurs in human subjects and whether it precedes aversive conditioning. Sixty subjects viewed—prior to conditioning—a series of slides of different emotional contents including the to be conditioned stimuli (CSs). Afterwards, the experimenter attached the shock electrodes and initiated shock exposure. Then, subjects were randomly assigned to view a series of two slides, each for eight acquisition trials in which one slide was followed by a shock. Subsequently, extinction trials (12 for each slide) were administered. During preconditioning, acquisition, and extinction, startle probes occurred unpredictably during and between slide viewing. Preconditioning data replicated previous results by Lang and his associates, showing that the startle response magnitude is directly related to the affective valence induced by the slides. Shock exposure strongly facilitated the startle reflex magnitude. This shock sensitization was absent for the skin conductance response. Course of learning also varied for both response systems. The data suggest that startle reflex potentiation indexes the acquisition of an avoidance disposition, which is preceded by a general sensitization of the protective reflexes. Skin conductance learning follows arousal changes and is modulated by cognitive processes.