Searching for inhibition of return in the rat using the covert orienting of attention task

Inhibition of return (IOR) is an important psychological construct describing inhibited responses to previously attended locations. In humans, it is investigated using Posner’s cueing paradigm. This paradigm requires central visual fixation and detection of cued stimuli to the left or right of the fixation point. Stimuli can be validly or invalidly cued, appearing in the same or opposite location to the cue. Although a rat version of the spatial cueing paradigm (the covert orienting of attention task) does exist, IOR has so far not been demonstrated. We therefore investigated whether IOR could be robustly demonstrated in adult male rats using the covert orienting of attention task. This task is conducted in holed wall operant chambers with the central three holes mimicking the set-up for Posner cueing. Across four samples of rats (overall n = 84), we manipulated the following task parameters: stimulus onset asynchronies (Experiments 1–3), cue brightness (Experiment 1b) and the presence of a central reorienting event (Experiment 4). In Experiment 1, we also investigated strain differences by comparing Lister Hooded rats to Sprague–Dawley rats. Although Lister Hooded rats briefly showed evidence of IOR (Experiment 1a, and see Online Resource 1 data), we were unable to replicate this finding in our other experiments using different samples of this strain. Taken together, our findings suggest that IOR cannot be robustly demonstrated in the rat using the covert orienting of attention task conducted in holed wall operant chambers.     

Positive Emotion Differentiation: A Functional Approach

While positive emotion can be conceptualized broadly as a response to the potential for reward, the environment offers different kinds of rewards, and these are best approached in somewhat different ways. A functional approach to positive emotion differentiation distinguishes among several different types of rewards with strong implications for adaptive fitness and posits the existence of “discrete” positive emotions that promote an adaptive response to each reward. A taxonomy of eight positive emotions, dubbed the “PANACEAS” taxonomy based on an acronym of the first letter of each of the eight constructs, is presented as an example of this approach. Positive emotion constructs defined through functional analyses are useful for guiding empirical research, especially for identifying prototypical eliciting stimuli, and generating hypotheses about the implications of different positive emotions for a variety of outcomes. Research findings are reviewed that support the importance of positive emotion differentiation in understanding the effects of positive emotions on cognition, physiology, and behavior. Advantages of the functional approach are discussed, as well as implications of the approach for evaluating major theories of the structure of emotion.     

Effects of intention and learning on attention to information in dynamic touch

The current research distinguishes two types of attention shifts: those entailed by perceptual learning and those entailed by changing intention. In perceptual learning, participants given feedback have been shown to gradually shift attention toward the optimal (i.e., specifying) information variable for the task. A shift in variable use is also expected when intention changes, because an intention to perceive some property entails attunement to information about that property. We compared the effects of feedback and intention in a dynamic (kinesthetic) touch task by representing both as changes of locus in an information space of inertial variables. Participants wielded variously sized, unseen, rectangular parallelepipeds and made length or width judgments about them. When given feedback, participants made gradual attentional shifts toward the optimal variable, which demonstrates the education of attention. When asked to report a new property, participants made large attentional jumps to the ballpark of the optimal variable for the new property. Exploratory movements were measured on 6 participants and were found to differ as a function of intention and to change with learning.     

With a little help from my friends: maternal social support,via parenting,promotes willingness to share in preschoolers born to young mothers

Little is known about prosocial behaviours in children of young mothers. This longitudinal study involved 44 young mother (age <20 years at birth of first child) families and 44 older mother families, who were carefully matched for child age and gender, as well as for family structure (number of children, lone‐parent status) and socio‐economic background (maternal education, head‐of‐household unemployment, low family income). At the first time‐point (M child age = 2.45 years), mothers listed family members or friends who provided practical and/or emotional support; videos of mother–child interaction in play and tidy‐up were coded for positive and negative parenting. Two years later (M child age = 4.32 years), children's prosocial behaviours were assessed via (i) an experimental task of willingness to share and (ii) video‐based ratings of sharing and helping during dyadic play with friends. T‐tests showed few group differences in prosocial behaviours. Regression analyses showed that, for young mother families only, reduced negative parenting mediated associations between support from friends and preschoolers' willingness to share. Support from friends, via parenting, may promote willingness to share in children born to young mother families. Copyright © 2009 John Wiley & Sons, Ltd.     

Using a runway paradigm to assess the relative strength of rats’ motivations for enrichment objects

Laboratory animals should be provided with enrichment objects in their cages; however, it is first necessary to test whether the proposed enrichment objects provide benefits that increase the animals’ welfare. The two main paradigms currently used to assess proposed enrichment objects are the choice test, which is limited to determining relative frequency of choice, and consumer demand studies, which can indicate the strength of a preference but are complex to design. Here, we propose a third methodology: a runway paradigm, which can be used to assess the strength of an animal’s motivation for enrichment objects, is simpler to use than consumer demand studies, and is faster to complete than typical choice tests. Time spent with objects in a standard choice test was used to rank several enrichment objects in order to compare with the ranking found in our runway paradigm. The rats ran significantly more times, ran faster, and interacted longer with objects with which they had previously spent the most time. It was concluded that this simple methodology is suitable for measuring rats’ motivation to reach enrichment objects. This can be used to assess the preference for different types of enrichment objects or to measure reward system processes.     

The role of appraisal-related beliefs in psychological well-being and physical symptom reporting

Pharmacy workers from a large United Kingdom public hospital participated in a daily diary study (n = 32, number of responses = 204) to explore if daily beliefs about high work demands' influence on affect and goals were associated with daily affective well-being, job satisfaction, and reports of physical symptoms. After completion of an initial questionnaire, participants were required to complete the diary twice daily, before and after work, over a 2 week period. Measures of daily affective well-being and job satisfaction after work were associated with beliefs concerning work demands' influence on both goals and affect. Measures of physical symptoms after work were not associated with beliefs concerning work demands' influence on goals or affect.     

REMEMBERING THE OTHER: POSTCOLONIAL PERSPECTIVES ON RELATIONSHIPS BETWEEN JEWS AND MUSLIMS IN FRENCH ALGERIA

In July 1962, Algeria ceased to be a French colony and became an independent nation prompting the departure of almost all the land's 120,000 Jews, most of whom migrated to France. Half a century on from this “exodus,” a diverse and growing body of testimony is appearing in the form of memoirs written by Jews who grew up in colonial Algeria. Laying claim to a specific Algerian-Jewish identity, this relatively new body of work emphasizes the unique historical position and trajectory of the Algerian-Jewish community. Using this material, this article will focus on how interaction between Jews and Muslims has been reconstructed and represented from a postcolonial vantage point. Exploring the collective narrative of shared ethno-religious sensibilities created by centuries of cohabitation that were then progressively undermined by an accelerating process of cultural and socioeconomic elongation instituted by the French presence in Algeria reveals a complex and constantly shifting set of negotiations between proximity and distance that characterized Judeo-Muslim relationships. The position the authors assign to themselves and to their community within this reconstructed history is instructive for thinking about present-day issues of identity within the Algerian Jewish diaspora.     

Children's attributions for peer victimization: A social comparison approach

A social comparison framework was used to examine the relations between children's attributions for victimization and adjustment. In Study One, 192 nine-to ten-year-old children were asked why someone may pick on them. Results revealed attributions reflecting five causes of victimization that could be reliably sorted by direction of social comparison: (a) jealous peer (downward), (b) mutual antipathy (horizontal), (c) being different from each other (horizontal), (d) personal behavior (upward) and (e) being uncool (upward). Children's responses were used to create an attribution measure that was administered to 206 eight-to eleven-year-old children. Results were consistent with the social comparison hypothesis such that peer jealousy was uniquely associated with lower levels of loneliness and greater acceptance whereas personal behavior and not being uncool were correlated with greater loneliness and lower perceived acceptance and self-esteem. Findings supported the usefulness of a social comparison framework for understanding associations among attributions and adjustment.