Reach/Grasp Times with Lateral Reach Obstructions

When moving to grasp an object having adjacent obstacles that limit the space available for placing the fingers, the time for the reach/grasp is dependent on the distance of reaching and the space available for finger placement. Here we model the time taken in terms of these variables and develop mathematical models for the reach and grasp phases of the task and the location of obstacles. Data show that the movement to the target may be made under visual control and that, when the obstacles are close to the target object, a visually-controlled movement is made that is modeled by a modified form of Fitts' law. The time for the two components of the reach/grasp appear to be independent and linearly additive.     

Parenting and toddler self-regulation in low-income families: What does sleep have to do with it?

Toddlerhood is a sensitive period in the development of self-regulation, a set of adaptive skills that are fundamental to mental health and partly shaped by parenting. Healthy sleep is known to be critical for self-regulation; yet, the degree to which child sleep alters interactive child–parent processes remains understudied. This study examines associations between observed parenting and toddler self-regulation, with toddler sleep as a moderator of this association. Toddlers in low-income families (N = 171) and their mothers were videotaped during free play and a self-regulation challenge task; videos were coded for mothers’ behavior and affect (free play) and toddlers’ self-regulation (challenge task). Mothers reported their child's nighttime sleep duration via questionnaire. Results revealed significant Sleep × Maternal Negative Affect and Sleep × Maternal Negative Control interactions. Children who did not experience negative parenting had good self-regulation regardless of their nighttime sleep duration. For children who did experience negative parenting, self-regulation was intact among those who obtained more nighttime sleep, but significantly poorer among children who were getting less nighttime sleep. Thus, among children who were reported to obtain less nighttime sleep, there were more robust associations between negative parenting and poorer self-regulation than among toddlers who were reported to obtain more sleep.     

Mnemonic Context Effect in Two Cultures: Attention to Memory Representations?

In two experiments we demonstrate a substantial cross-cultural difference in a mnemonic context effect, whereby a magnitude estimate of a simple stimulus such as a line or circle is biased toward the center of the distribution of previously seen instances of the same class. In support of the hypothesis that Asians are more likely than Americans to disperse their attention to both the target stimulus and its mnemonic context, this effect was consistently larger for Japanese than for Americans. Moreover, the cultural difference was attenuated by an experimentally induced belief in class homogeneity that augmented the context effect itself in both cultures. More important, these belief effects happened in the absence of any objective change in stimulus distribution. Implications for sociocultural shaping of cognition are discussed.     

Weight-related words associated with figure silhouettes

Antifat attitudes and obesity bias are prevalent in Western society; however, little is known about the social meanings and connotations of weight-related words such as fat, overweight, and obese (e.g., Robison & Erdman, 1998). The purpose of this study was to explore college students' perceptions of weight-related terminology. Participants (n=131) completed a modified figure rating scale in which they identified male and female figure silhouettes most associated with a variety of weight-related words and personal characteristics. Additionally, participants completed a word association task and provided definitions of five weight terms. Results indicated that participants grouped weight terms into two groupings (i.e., "slender" and "heavy" weight terms) both in the figure rating task and in the word association and definition tasks. Both male and female participants selected smaller female figure silhouettes for the weight terms overweight, large, fat, and normal weight than for the male figure silhouettes. Moreover, associations between weight-related words and personal characteristics, including normal weight -physically fit and overweight -lazy, were found. The results suggest that weight-related words carry with them social meanings and values that reflect an "ideology of blame."     

Like mother,like daughter: similarities in narrative style

Children (2-5-year-olds and 8-13-year-olds) and their parents were independently interviewed about highly salient events: injuries serious enough to necessitate hospital emergency room treatment. Free recall narratives were scored using 14 measures of length, elaborative detail, cohesion, coherence,and provision of context. Mothers' narratives were more cohesive and coherent than fathers', and girls' narratives differed from boys' in parallel ways. Parent and child measures were correlated, and narratives of mother-daughter dyads (for the older daughters) showed striking similarity in all 5 properties, whereas there was no narrative similarity within father-son, mother-son, or father-daughter dyads. This suggests a special status for mother-daughter dyads in terms of how events come to be linguistically represented in narrative.     

Facial attractiveness is appraised in a glance

Those who are physically attractive reap many benefits--from higher average wages to a wider variety of mate choices. Recent studies have investigated what constitutes beauty and how beauty affects explicit social judgments, but little is known about the perceptual or cognitive processing that is affected by aesthetic judgments of faces and why beauty affects our behavior. In this study, the authors show that beauty is perceived when information is minimized by masking or rapid presentation. Perceiving and processing beauty appear to require little attention and to bias subsequent cognitive processes. These facts may make beauty difficult to ignore, possibly leading to its importance in social evaluations.     

Personality moderators of the relationship between abusive supervision and subordinates' resistance

Results of a study using data collected at 2 points in time, separated by 6 months, suggested that subordinates resisted their supervisors' downward influence tactics with greater frequency when their supervisors were more abusive and that subordinates' personality moderated the effects of abusive supervision. The relationship between abusive supervision and subordinates' dysfunctional resistance was stronger among subordinates who were lower in conscientiousness than among subordinates who were higher in conscientiousness, but this effect emerged only for subordinates who were also lower in agreeableness. The relationship between abusive supervision and subordinates' constructive resistance was stronger among subordinates who were higher in conscientiousness than among subordinates who were lower in conscientiousness. The study's implications for theory and research are discussed.     

To master or perform? Exploring relations between achievement goals and conceptual change learning

Background. Research is needed to explore conceptual change in relation to achievement goal orientations and depth of processing. Aims. To address this need, we examined relations between achievement goals, use of deep versus shallow processing strategies, and conceptual change learning using a think‐aloud protocol. Sample and Method. Seventy‐three undergraduate students were assessed on their prior knowledge and misconceptions about Newtonian mechanics, and then reported their achievement goals and participated in think‐aloud protocols while reading Newtonian physics texts. Results. A mastery‐approach goal orientation positively predicted deep processing strategies, shallow processing strategies, and conceptual change. In contrast, a performance‐approach goal orientation did not predict either of the processing strategies, but negatively predicted conceptual change. A performance‐avoidance goal orientation negatively predicted deep processing strategies and conceptual change. Moreover, deep and shallow processing strategies positively predicted conceptual change as well as recall. Finally, both deep and shallow processing strategies mediated relations between mastery‐approach goals and conceptual change. Conclusions. Results provide some support for Dole and Sinatra's (1998) Cognitive Reconstruction of Knowledge Model of conceptual change but also challenge specific facets with regard to the role of depth of processing in conceptual change.     

Level of Muscular Tension as an Aspect of Personality

The purpose of this study was to compare two methods of analyzing the effects of exteroceptive feedback training on the voluntary bidirectional control of human cardiac rate with the use of a within-subject control design. In this design heart rate (HR) during an experimental period (increase or decrease) is compared with that recorded during some other control period, generally a baseline “rest” period. Ten male undergraduates were instructed to control HR and given visual feedback of heart activity. Trials on which Ss were to raise and to lower HR were both given in a single training session. The data were analyzed in two ways: (a) cardiac rate during HR control periods was compared to an initial pre-experiment baseline; (b) cardiac rate during HR control periods was compared to a running pretrial baseline. The results support the argument that the former procedure fails to take account of habituating levels of cardiac rate and favors finding large magnitude decreases in HR but small increases, whereas the latter procedure favors finding large magnitude increases but small decreases. It is suggested that magnitude of directional control will be artifactual when initial values are used to assess change. Contaminating influences on the running pretrial baseline were also discussed.     

Exploring Sexual Minority Women’s Experiences of External and Internalized Heterosexism and Sexism and their Links to Coping and Distress

This study examined experiences of external and internalized heterosexism and sexism and their links to coping styles and psychological distress among 473 sexual minority women. Using an online sample of United States lesbian and bisexual women, the findings indicated that many participants experienced heterosexist and sexist events at least once during the past 6 months, and a number of participants indicated some level of internalized oppression. Supporting an additive multiple oppression perspective, the results revealed that when examined concurrently heterosexist events, sexist events, internalized heterosexism, and internalized sexism were unique predictors of psychological distress. In addition, suppressive coping and reactive coping, considered to be maladaptive coping strategies, mediated the external heterosexism-distress, internalized heterosexism-distress, and internalized sexism-distress links but did not mediate the external sexism-distress link. Reflective coping, considered to be an adaptive coping strategy, did not mediate the relations between external and internalized heterosexism and sexism and psychological distress. Finally, the variables in the model accounted for 54 % of the variance in psychological distress scores. These findings suggest that maladaptive but not adaptive coping strategies help explain the relationship between various oppressive experiences and psychological distress.