Accounting for the Richness of Daily Activities

ABSTRACT— Serious consideration is being given to the impact of private behavior and public policies on people's subjective well-being (SWB). A new approach to measuring well-being, the day reconstruction method (DRM), weights the affective component of daily activities by their duration in order to construct temporal aggregates. However, the DRM neglects the potentially important role of thoughts. By adapting this method to include thoughts as well as feelings, we provide perhaps the most comprehensive measure of SWB to date. We show that some activities relatively low in pleasure (e.g., work and time with children) are nonetheless thought of as rewarding and therefore contribute to overall SWB. Such information may be important to policymakers wishing to promote behaviors that are conducive to a broader conception of SWB.     

A computational technique for improving estimates of discriminability and bias across multiple dimensions of choice

Brown and White (2009) proposed measures of discriminability and bias that accommodate additional dimensions of choice—and hence, bias—in conditional discriminations such as matching-to-sample and the yes-no signal detection task. Their proposed measures increase the statistical independence of discriminability and bias estimates, thus improving their accuracy. Because Brown and White’s (2009) equations partition response data more than do standard equations, however, their measures have a slightly lower ceiling. Consequently, measurements can be less accurate when there are few trials and discriminability and bias are extreme. We introduce a computational estimation technique that overcomes this limitation. It estimates Brown and White’s (2009) discriminability and bias measurements from an array of related measures that have a higher ceiling. Simulations show that resulting estimates of discriminability and bias are either comparable to or more accurate than measurements calculated from traditional equations or Brown and White’s (2009) direct measures, even with few trials. A worked example of our technique may be downloaded from brm.psychonomic-journals.org/ content/supplemental.     

Media and violence: The case of professional football championship games

Recently much research has linked media violence with actual violence. The most serious violence, suicides, and homicides have been connected to events portrayed in the mass media. In this study I examine the effect of NFL football playoff games on the relative incidence of homicides between standard metropolitan statistical areas (SMSAs) with and without participating teams. Results show that homicides may be related to participation. Specifically, SMSAs with losing teams experience significantly more homicides than SMSAs with winning teams.     

Modeling development of frontal electroencephalogram (EEG) asymmetry: Sex differences and links with temperament

Asymmetric patterns of frontal brain electrical activity reflect approach and avoidance tendencies, with stability of relative right activation associated with withdrawal emotions/motivation and left hemisphere activation linked with approach and positive affect. However, considerable shifts in approach/avoidance‐related lateralization have been reported for children not targeted because of extreme temperament. In this study, dynamic effects of frontal electroencephalogram (EEG) power within and across hemispheres were examined throughout early childhood. Specifically, EEG indicators at 5, 10, 24, 36, 48, and 72 months‐of‐age (n = 410) were analyzed via a hybrid of difference score and panel design models, with baseline measures and subsequent time‐to‐time differences modeled as potentially influencing all subsequent amounts of time‐to‐time change (i.e., predictively saturated). Infant sex was considered as a moderator of dynamic developmental effects, with temperament attributes measured at 5 months examined as predictors of EEG hemisphere development. Overall, change in left and right frontal EEG power predicted declining subsequent change in the same hemisphere, with effects on the opposing neurobehavioral system enhancing later growth. Infant sex moderated the pattern of within and across‐hemisphere effects, wherein for girls more prominent left hemisphere influences on the right hemisphere EEG changes were noted and right hemisphere effects were more salient for boys. Largely similar patterns of temperament prediction were observed for the left and the right EEG power changes, with limited sex differences in links between temperament and growth parameters. Results were interpreted in the context of comparable analyses using parietal power values, which provided evidence for unique frontal effects.     

Sensory cues that elicit ultrasonic vocalizations in female rats (Rattus norvegicus)

Female rats emit ultrasonic vocalizations during copulation. Female vocalizations are associated with darting and other proceptive behavior. In addition, females frequently call while approaching the male. A series of experiments was undertaken to determine whether female rats emit ultrasonic vocalizations in response to other rats or to their odors. Females were exposed either to bedding soiled by males or females or to devocalized conspecifics separated from the subject by a barrier. Females vocalized more to male cues than to female cues, regardless of whether the odor cues were from soiled bedding or from a devocalized conspecific. In addition, subjects vocalized more when presented with a devocalized female rather than a neutral stimulus. Furthermore, devocalized adult males, separated by a barrier, were more effective than either devocalized castrated or juvenile males in eliciting vocalizations; in turn, castrates and juveniles were more effective than neutral stimuli. Female calling was likely induced by odors from the male. In one experiment, the female subject was positioned in such a way that she could neither see or touch the stimulus male. Presentation of tape-recorded male vocalizations did not affect calling by the female. Vocalizations emitted by females in response to male odors may attract males or may facilitate subsequent copulatory behavior by the male.     

Perinatal loss and maternal attitudes toward the subsequent child

Twenty-five mothers who had experienced a previous perinatal loss and a comparison group of 30 nonloss mothers completed the Maternal Attitude Questionnaire (MAQ) and the Maternal Separation Anxiety Scale (MSAS) when their children were 16 months old. The purposes of the study were to describe and evaluate the development of a new measure (the MAQ) and to examine the hypothesis that mothers who experienced a perinatal loss would express (a) more concern about the subsequent child's health, (b) more investment in the child, and (c) heightened concern about maternal-child differentiation/separation in comparison to nonloss mothers. The results showed that the MAQ had good internal consistency. None of the three factors of the MSAS differentiated between the two groups of mothers while two subscales of the MAQ did: (1) Maternal Concern with Child's Health and (2) Maternal Concern with Differentiation. Mothers who had experienced a perinatal loss thus expressed more concerns about their children's physical well-being and more concerns about differentiating from their child than mothers who had not had a perinatal loss.     

Family dynamics as predictors of infant disposition

In this longitudinal study of mothers, their families, and their infants, both discriminant and regression analyses showed that prenatal reports of family dynamics predicted infant disposition at 8 months with considerable accuracy. The most important predictive component was organization and consistency within the family unit as well as the dependability of other family members. Possible mechanisms by which family dynamics might affect the infant's developing disposition are discussed.     

Women's aggression in heterosexual conflicts

Using a longitudinal design, prior experience with violence as a victim and opportunity to aggress were examined as predictors of college women's verbal and physical aggression toward romantic partners. Five additional categories of predictors identified in previous research (experienced and witnessed parental aggression during childhood, attitudes accepting of aggression, aggressive/impulsive personality attributes, psychopathology, and prior use of aggression) were also examined. Blockwise hierarchical regression analyses were performed to reveal the best predictors of verbal and physical aggression during the first year of college. Significant predictors of verbal aggression were prior use of verbal aggression in heterosexual conflicts during adolescence, witnessed parental aggression, level of adolescent sexual victimization, being a target of rational conflict strategies during adolescence, and use of physical aggression in romantic adolescent relationships, as well as self-reported verbal aggression as an index of personality, weak emotional ties, number of sexual partners, and approval of sexual intimacy in many types of relationships. Significant predictors of physical aggression were prior use of physical aggression during adolescence, witnessing and experiencing parental aggression, being a victim of physical aggression in adolescent romantic relationships, weak emotional ties, low levels of alcohol/drug use, and opportunity to aggress. A developmental model of aggression in which childhood experiences with family violence contribute to the likelihood of subsequent involvement in relationship violence seems appropriate. Past experience with aggression may be particularly important for women. Cultural expectations about women's roles do not provide the social support for female aggression that is provided for male aggression. Adolescent sexual victimizations and general involvement in conflictual relationships (as target and perpetrator) predicted subsequent verbal aggression, whereas experiencing family violence and sustaining physical aggression in romantic relationships predicted subsequent physical aggression. © 1994 Wiley-Liss, Inc.