Handwriting in patients with Parkinson disease: effect of L-dopa and stimulation of the sub-thalamic nucleus on motor anticipation

The present research focused on how patients with Parkinson’s disease (PD) produce handwriting sequences. PD patients who were on/off medication or deep brain stimulation treatments had to write lll and lln trigrams. We evaluated their ability to anticipate on-line the last letter in the trigram. The results revealed that in PD patients, contrary to healthy participants, the percentage of time taken by the down-stroke of the second l did not vary as a function of the spatial constraints of the following letter (l or n). In other words, the handwriting of the PD patients did not exhibit any sign of motor anticipation. However, under treatment, PD patients exhibited similar results to healthy participants despite no improvement in movement variability. Taken together these results do not seem consistent with the hypothesis that PD patients do not anticipate future movements because of their movement variability. They are more in agreement with theories that postulate that PD patients have a general deficit in the parallel processing of the components of a motor sequence.     

Effects of Training Volume on Hormones and Mood in Basketball Players

Mood and basal hormone levels were measured before and after a 4-month training period in 20 professional basketball players on 2 different teams. Training volume was daily quantified by intensities, showing that Team 1 trained nearly twofold the volume of Team 2. Apart from the lack of differences between teams in anthropometric and physical variables, results showed mood improvements in the total sample without differences between teams. However, cortisol levels decreased in Team 1 and increased in Team 2, while the free testosterone–cortisol ratio, free testosterone, prolactin, and luteinizing hormone did not show significant changes. Changes in cortisol were positively related to depression and negatively related to training volume. Results suggest that differences exist in sensitivity and/or timing of both psychological and hormonal responses to 2 given volumes of training.     

Flexible use of recent information in causal and predictive judgments

Associative and statistical theories of causal and predictive learning make opposite predictions for situations in which the most recent information contradicts the information provided by older trials (e.g., acquisition followed by extinction). Associative theories predict that people will rely on the most recent information to best adapt their behavior to the changing environment. Statistical theories predict that people will integrate what they have learned in the two phases. The results of this study showed one or the other effect as a function of response mode (trial by trial vs. global), type of question (contiguity, causality, or predictiveness), and postacquisition instructions. That is, participants are able to give either an integrative judgment, or a judgment that relies on recent information as a function of test demands. The authors concluded that any model must allow for flexible use of information once it has been acquired.     

Do attributions change over time when the actor's behavior is hedonically relevant to the perceiver?

The tendency for observers to overattribute others' behavior to dispositional variables and, correspondingly, to underestimate the importance of situational variables has been well documented. Yet, the strength of this so-called fundamental attribution error has been challenged by J. M. Burger (1991), who showed that this bias disappeared over time. But does time cause an attribution shift when the other's behavior is negative and hedonically relevant to the observer (e.g., the former is attacked by the latter)? In an exploratory study, the authors showed that even in this case, attributions to dispositional variables tended to diminish overtime.     

Identification and status revisited: the moderating role of self-enhancement and self-transcendence values

Two studies examined the moderating role of the importance attributed to self-enhancement and self-transcendence values on the association of group status with identification. In the first study, students reported their personal value priorities, their identification with a group, and their perception of the status of that group. The more importance respondents attributed to self-enhancement and the less importance to self-transcendence, the more their identification with a group depended on the group's status. In the second study, the salience of self-enhancement and of self-transcendence values was experimentally manipulated. Identification with a group depended more on the status of that group when self-enhancement values were salient than when self-transcendence values were salient.     

Night and day: are siblings as different in temperament as parents say they are?

Twin studies suggest that parent ratings of temperament exaggerate differences between twins. The present study examined whether such contrast effects also operate for nontwin siblings. The activity level (AL) and shyness of 95 nontwin sibling pairs (ages 3 to 8 years) were assessed via parent ratings and objective measures (actigraph and observer ratings). Siblings showed no resemblance in either parent-rated AL or shyness; however, sibling resemblance for actigraph AL and observer-rated shyness was substantial. Thus, parents do contrast their nontwin siblings when rating these 2 temperament dimensions. Moreover, the importance of sibling differences in temperament to the sibling relationship and differential maternal treatment varied across the different measures of AL and shyness, suggesting that parent perceptions may play a role in these associations.     

The role of passion for studies on academic procrastination and mental health during the COVID-19 pandemic

Social Psychology of Education - Procrastination is a maladaptive behaviour that students often experience in academic activities and can result in negative consequences to mental health. The...     

Flooded by a wall of water: parent–child reminiscing about local environment and unwanted changes

This article examines the long-lasting effects of an unwanted place change (i.e., the construction of a dam) on the social representations (SRs) of places and of place-community relationship. The study integrates an SRs approach, generative semiotics, and methods borrowed from research on the social making of autobiographical memory. The aim is to explore whether and how intergenerational family narratives contribute to the transmission of SRs. Parent-child pairs were asked to share episodes linked to the dam. Video-recordings were submitted to thematic content analysis and semiotic analysis. Results show that parents and children associate the dam with a radical transformation: it acts as a performer of separation between the community and its territory. The analysis of interactions gives further insights into the how family and community memories are connected. This first attempt confirms the potentialities of the integrated approach to understanding the processes of intergenerational transmission of social representations, and paves the way to further refinements.     

Acculturation discrepancies and well‐being: the moderating role of conformity

This study examines associations of immigrants' well‐being with the discrepancies they perceive between their own acculturation attitudes and the acculturation expectations of members of the host society. A hundred immigrants to Israel from the former Soviet Union reported their personal value priorities, their satisfaction with life, their attitudes towards acculturation, and their beliefs about what members of the dominant society require of them. The immigrants believed that Israelis want them to relinquish their distinctive identity and to assimilate more than they themselves wish to do. As hypothesized, perceived pressure to assimilate correlated negatively with life satisfaction only among those who value conformity, but not among others. Copyright © 2000 John Wiley & Sons, Ltd.     

Regret intensity, diurnal cortisol secretion, and physical health in older individuals: evidence for directional effects and protective factors

Two studies were conducted to examine the associations between life regrets and health-relevant variables among older adults. Study 1 explored whether intense experiences of regret would be associated with a health-relevant biological process (i.e., diurnal cortisol secretion) and acute physical problems (N = 183). In Study 2, a group of 103 older adults was followed over a period of 3 months, and changes in cold symptoms and sleep problems were examined. Study 2 incorporated an experimental manipulation, targeted at engaging participants in adaptive social- cognitive processes through writing. The results of Study 1 showed intense life regrets to be associated with a larger volume and a steeper morning rise of cortisol secretion and with higher levels of acute physical symptoms. Study 2 demonstrated that levels of regret intensity generally declined only in the experimental group, whereas certain aspects of regret intensity remained stable in the control group. In addition, the intervention evidenced a beneficial effect on the association between initial regret intensity and increased sleep problems over time.