Not moved,still lonely: the negative relation between loneliness and being moved

Motivation and Emotion - Three studies (total N?=?501) showed a negative association between loneliness and the emotion of being moved. People who were lonelier than others consistently...     

Individual Differences in Mood Changes

The study explores the influence of individual tendencies toward mood improvement/deterioration and the Big Five personality traits on mood changes. Participants (218 students) completed NEO-FFI and The Mood Regulation Scales. Based on the within-person structure of individual tendencies toward mood improvement/deterioration four mood regulative types were distinguished (increasing, decreasing, hot and cool type). In the experimental stage participants were randomly assigned to one of four group conditions created by experimental factors: (1) induced mood (positive/negative), and (2) the level of cognitive loading (easy/hard condition). Direct (Mood Adjective Check List) and indirect (emotional version of Lexical Decision Task) measurements were used to assess mood changes. The results showed different patterns of mood changes for increasing and decreasing regulative types. Those differences were visible especially in the positive mood regulation. While the decreasing type decreased the induced positive mood, the increasing type was characterized by mood changes manifested in energetic arousal increase and tense reduction. Moreover, high Neuroticism and low Extraversion in the decreasing type contributed to a negative mood increment manifested in reduction of energetic arousal. The same effect was revealed for high Conscientiousness for the increasing type. The results are discussed in the context of psychological status of mood regulation strategies (automatic/controlled) and with reference to previous research in this area.     

Retrieval-induced forgetting,delay, and sleep

Retrieval-induced forgetting (RIF) refers to the finding that retrieval of a subset of previously studied material can cause forgetting of related unpractised material. Prior work on the role of delay between practice and test for RIF reported mixed results. Whereas some studies found RIF to be a relatively transient phenomenon, others found RIF to persist over time. We examined whether the persistence of RIF can depend on whether wakefulness or sleep follows retrieval practice. We employed a variant of the retrieval-practice paradigm with short (20 minutes) and long (12 hours) delay conditions. In all conditions participants studied a perceptually categorised list followed by retrieval practice on some of the items from some of the categories. Participants studied and practised the material in the morning or the evening. RIF was present in the short-delay conditions, and it was present in the long-delay condition if the delay included nocturnal sleep; if the long delay was filled with diurnal wakefulness, RIF was absent. Results show that whether delay eliminates RIF or not can depend on whether sleep or wake follows retrieval practice. Connections of the results to recent findings about the role of delay and sleep for RIF are discussed.     

Negative Relations Between Pacifier Use and Emotional Competence

Research in psychology and neuroscience suggests that facial mimicry plays a causal role in understanding facial expression of emotion. Accurate understanding of facial emotion, in turn, grounds emotional development. Are pacifiers, which disrupt facial mimicry in the user, associated with compromised emotional development? We examined facial mimicry in children and found that duration of pacifier use was associated with reduced facial mimicry in boys. In two questionnaire studies of young adults, pacifier use also predicted lower perspective taking and emotional intelligence in males. Pacifier use did not predict these emotion processing skills in girls. Future confirmatory studies are proposed.     

ROC in animals: Uncovering the neural substrates of recollection and familiarity in episodic recognition memory

It is a consensus that familiarity and recollection contribute to episodic recognition memory. However, it remains controversial whether familiarity and recollection are qualitatively distinct processes supported by different brain regions, or whether they reflect different strengths of the same process and share the same support. In this review, I discuss how adapting standard human recognition memory paradigms to rats, performing circumscribed brain lesions and using receiver operating characteristic (ROC) methods contributed to solve this controversy. First, I describe the validation of the animal ROC paradigms and report evidence that familiarity and recollection are distinct processes in intact rats. Second, I report results from rats with hippocampal dysfunction which confirm this finding and lead to the conclusion that the hippocampus supports recollection but not familiarity. Finally, I describe a recent study focusing on the medial entorhinal cortex (MEC) that investigates the contribution of areas upstream of the hippocampus to recollection and familiarity.     

Scared to death or scared to love? Terror management theory and close relationships seeking

To cope with paralyzing terror awakened by thoughts of their own death people usually use two defense mechanisms: cultural worldview and self‐esteem. Recent studies suggest that also close relationships may function as a death anxiety buffer. The present research explores this phenomenon in an experimental paradigm. One hundred sixteen undergraduates completed a self‐esteem scale, attachment scale, and a scale tapping ideal mate characteristics. After experimental manipulation each participant talked shortly with six unknown students of the opposite sex and rated their attractiveness. The results showed no effect of self‐esteem either in the experimental or control condition. As for the attachment styles, we obtained significant interaction of avoidance and condition (non‐avoidant participants were more favorable under mortality salience), and simple effect of anxiety (anxious participants increased the assessments regardless of the condition). Both effects were short‐term and affected only the assessments of the first date. Copyright © 2006 John Wiley & Sons, Ltd.     

Zero‐sum thinking as mediator of the relationship of national attitudes with (un)willingness to host refugees in own country

This study examines factors related to willingness to host refugees. We examined the role of national attitudes (patriotism, nationalism), out‐group attitudes (classic and modern prejudice), and zero‐sum thinking: Belief in a Zero‐Sum Game and psychological entitlement in attitudes towards hosting refugees. We proposed including zero‐sum thinking as possible mediator between national attitudes and attitudes towards refugees based on assumption that nationalism is a competitive attitude towards out‐groups, while patriotism does not. Structural equation modelling based on a Polish national sample (N = 1092) revealed that patriotism is positively associated with willingness to host refugees, through its negative association with prejudice via decreasing zero‐sum thinking. Nationalism was negatively associated with willingness to host refugees, through prejudice via increasing zero‐sum thinking. Findings are discussed in the context of current refugee policies.     

Amphetamine and morphine produce a conditioned taste and place preference in the house musk shrew (Suncus murinus)

Rats have been shown to avoid consuming a flavor, but prefer a location, previously paired with amphetamine or morphine. A series of 4 experiments evaluated the hedonic properties of amphetamine and morphine in the house musk shrew (Suncus murinus), an insectivore that (unlike rats) is capable of vomiting when exposed to toxins. Unlike rats, amphetamine (20 mg/kg) and morphine (20 mg/kg) produced both a conditioned sucrose (0.3 M) and saccharin (0.1%) preference in shrews (administered intraperitoneally), when measured by both a 1- and a 2-bottle test. At the same dose, both drugs also produced a place preference in shrews. These results suggest that the potential of rewarding drugs to produce taste avoidance may vary on the basis of the ability of the species to vomit.     

Equivocations on knowledge systems theory: An actor-oriented critique

Knowledge systems theory, in our view, tends to obscure rather than illuminate an understanding of the fundamentals of knowledge processes in society. This tendency occurs primarily because both the theory, and the methodologies that are derived from it, fail to recognize that knowledge processes are social processes, and thereby that knowledge itself has to be envisaged as a social construction. As a result of this omission, knowledge systems theory and methodology can only deal poorly with issues of power and social conflict, and, at the same time, tend to make use of several inappropriate teleological and reifying notions. According to our view, the understanding of knowledge processes will benefit greatly from a more actor-oriented perspective. In such an approach, emphasis is accorded to human agency and the concept of multiple knowledge networks. Central purposes of actor-oriented methodologies then, are to clarify how actors attempt to create space for their own ‘projects’ and to determine which elements contribute to or impede the successful creation of such space for maneuver. Norman Long is a member of the Department of Rural Sociology of the Tropics and Subtropics at Wageningen Agricultural University, P.O. Box 8130, 6700 EW, Wageningen, The Netherlands. He is known for his work in the sociology of rural development. Magdalena Villarreal recently acquired her M.S. in “Management of Agricultural Knowledge Systems” at Wageningen Agricultural University. She is presently working on a Ph.D. proposal on issues of power, gender, and intervention.