Using visual reinforcement to establish stimulus control of responding of Siamese fighting fish (Betta splendens)

Stimulus control of ring swimming was studied with male Siamese fighting fish (Betta splendens) using 2-component multiple schedules in which the components were correlated with the presence or absence of air bubbles in the water. In Experiment 1, either response-independent mirror presentations or extinction was juxtaposed with immediate response-dependent mirror presentations. Rates of ring swimming generally were higher with immediate reinforcement than with either response-independent mirror presentations or extinction. In Experiment 2, different durations of response-dependent mirror presentations were juxtaposed. Generally, higher rates of ring swimming occurred with 15-s than with 0-, 1-, or 3-s durations. Results demonstrate that stimulus control of responding can be established with these fish under several conditions of differential reinforcement.     

A Laboratory Test of the Mirror Image Hypothesis1

Chinese and American nationals participated in an experimental internation simulation as a test of Bronfenbrenner's mirror image hypothesis. Perceptions of own and opposing nations were measured for (1) a rebel movement, and (2) a large power fighting a rebel movement in a foreign nation. The effects of information availability (relevance), and of increasing threat from a third power were also investigated. It was found that evaluative mirror image perceptions of the opposing nation as “bad” and one's own as “good” were easily established. Mirror image perceptions of “they are the aggressors” were found for Chinese, but not for Americans. Information relevance had only limited effects. Threat from a third power produced, in general, decreased mirror image perceptions for subjects representing the large power, but did not affect subjects representing the rebel movement.     

Charting the Eccles' expectancy-value model from mothers' beliefs in childhood to youths' activities in adolescence

The Eccles' expectancy-value model posits that a cascade of mechanisms explain associations between parents' beliefs and youths' achievement-related behaviors. Specifically, parents' beliefs predict parents' behaviors; in turn, parents' behaviors predict youths' motivational beliefs, and youths' motivational beliefs predict their behaviors. This investigation focused on testing this model with mothers in sports, music, math, and reading over a 12-year period. Data were drawn from mother, youth, and teacher questionnaires collected as part of Childhood and Beyond Study (92% European American; N = 723). Mothers' beliefs in sports, music, and math positively predicted their behaviors in these areas 1 year later, which predicted youths' self-concepts of ability and values (i.e., their motivational beliefs) in these domains 1 year later. Adolescents' motivational beliefs predicted time spent in organized sport activities, playing music, and reading after school measured 4 years later as well as the number of math courses taken in high school. Furthermore, except in reading, mothers' behaviors mediated the relations between mothers' and youths' beliefs, and youths' beliefs mediated the relations between mothers' behaviors and youths' behaviors. Although there were mean-level differences in several indicators based on child gender, in most cases the relations among these indicators did not significantly vary by child gender. This study highlights the processes by which mothers' beliefs during their children's childhood can predict children's activities in adolescence.     

Effects of environmental support on overt and covert visuospatial rehearsal

People can rehearse to-be-remembered locations either overtly, using eye movements, or covertly, using only shifts of spatial attention. The present study examined whether the effectiveness of these two strategies depends on environmental support for rehearsal. In Experiment 1, when environmental support (i.e., the array of possible locations) was present and participants could engage in overt rehearsal during retention intervals, longer intervals resulted in larger spans, whereas in Experiment 2, when support was present but participants could only engage in covert rehearsal, longer intervals resulted in smaller spans. When environmental support was absent, however, longer retention intervals resulted in smaller memory spans regardless of which rehearsal strategies were available. In Experiment 3, analyses of participants’ eye movements revealed that the presence of support increased participants’ fixations of to-be-remembered target locations more than fixations of non-targets, and that this was associated with better memory performance. Further, although the total time fixating targets increased, individual target fixations were actually briefer. Taken together, the present findings suggest that in the presence of environmental support, overt rehearsal is more effective than covert rehearsal at maintaining to-be-remembered locations in working memory, and that having more time for overt rehearsal can actually increase visuospatial memory spans.     

Cell phone usage relational regulation strategies of older South Africans

This study explored older South Africans’ relational regulation strategies in using their cell phones to address their social goals and psychosocial needs. Nineteen older South Africans (17 female; 2 male), aged 60 and older, who had access to a cell phone and represented different socio-economic levels based on the Living Standard Measurement (LSM) scale, participated in the Mmogo-method®, a visual data-collection method. Thematic and visual analysis revealed that the subjective assessment of cell phone users’ competence determined the type of relational regulation strategy they apply. Findings revealed older persons to adopt three relational regulation strategies in their cell phone use: (i) postponement of need satisfaction; (ii) asking directly; or (iii) negotiating for needs satisfaction. The findings might facilitate programmes that promote cell phone use in older persons to address their social needs and promote healthy intergenerational interactions.     

Positive or Negative Effects of Technology Enhancement for Brand Placements? Memory of Brand Placements in 2D, 3D,and 4D Movies

Brand placements in movies are common throughout the world. Within the last few years, 3D movie technology has experienced substantial growth in both cinemas and home entertainment. Furthermore, advanced cinemas also offer 4D experiences by adding scent, airflow or tactile stimuli to the 3D film. Based on the limited capacity model of information processing and the levels of processing effect theory, we conduct two studies to investigate how delivery modes of a 2D movie clip, compared to a 3D and a 4D (3D + scent) movie clip, influence recall and recognition of brands that are placed in either prominent or subtle ways. With regard to subtle placements, results from both studies demonstrate that the memory of subtle brand placements is negatively affected by the enhancement offered by 3D or 4D, as compared to 2D movies. With regard to prominent placements, results indicate that the memory of a highly prominent brand placement benefits from 3D, but not from 4D technology. This article addresses implications for research as well as for marketers and movie makers, while also outlining directions for further research.     

The Impact of Ethnicity,Language, and Anxiety on Quality of Life in Children with Cancer

Undergoing cancer treatment significantly impacts quality of life (QOL). This study evaluated the role of anxiety, ethnicity, and language on QOL in children with a cancer diagnosis. Participants included 156 parent–child dyads in 3 groups: English-speaking Hispanic, Spanish-speaking Hispanic, and English-speaking non-Hispanic White. Parents completed measures of self-reported anxiety and their children’s perceived QOL. Children completed self-reported measures of anxiety and QOL. Families in which parents primarily spoke English reported higher parent-reported generic-module QOL (p?=?0.0062), higher parent-reported cancer-specific QOL (p?=?0.004), lower parent trait anxiety (p?=?0.0005)), and lower child trait anxiety (p?=?0.013), compared to families in which parents primarily spoke Spanish. Regression analyses were strongly supportive of a mediational role of parent trait anxiety in the association of ethnicity/language and parent-reported QOL. The results of this study suggest that children of Spanish-speaking parents may be at greater risk of decreased quality of life, as a function of increased parental anxiety.