Effects of stress on sleep: the moderating role of coping style.

The aim of this prospective quasi-experimental study was to assess the role of coping style as a factor moderating the relationship between stress and sleep. Sleep of 36 students was assessed by means of actigraphy and daily logs during low-stress and high-stress periods. The high-stress period was the week that the students were evaluated for acceptance to graduate programs in clinical psychology. The low-stress period was a regular academic week. The students' ways of coping were assessed during the baseline low-stress period using the COPE inventory. Data analysis revealed that a high emotion-focused coping score was significantly predictive of reduction in sleep time from the low- to the high-stress period. These results suggest that coping style is a key factor in assessing the relationship between stress and sleep.     

Early Adolescents' Achievement Goals,Social Status,and Attitudes Towards Cooperation with Peers

This qualitative study used a semi-structured interview with 50 fifth grade Israeli students to investigate the relations among achievement goals and social identity processes that concern orientation towards social structure and status in the classroom, and preference and willingness to cooperate with peers from different social groups. Mastery-oriented students were found to evaluate cooperation with respect to its contribution to learning, friendship, and class cohesion, and to be willing to cooperate with peers regardless of their social group membership. Performance-approach and performance-avoidance oriented students were found to evaluate cooperation with regard to its implications for social status, and to prefer to cooperate with peers of the in-group and with high status peers. Performance-avoidance oriented students with low social status were found to also adopt a defensive avoidant orientation in the social domain.     

Inverted-U effects generalize to the judgment of subjective properties of faces

Researchers studying absolute identification have long known that it takes more time to identify a stimulus in the middle of a range than one at the extremes. That is, there is an inverted-U relation between mean response time and response position. In this task, an inverted-U relation also exists between response uncertainty and response position. Similarly, an inverted-U relation between mean response time and response position has been found for psychometric measures involving questions about the self. However, psychophysicists explain these inverted-U effects differently than do self-schema researchers. We propose an integrative framework in which task constraints explain these effects. To verify the generality of these inverted-U effects, we hypothesized that they would exist in three tasks having similar constraints--in this case, tasks involving the judgment of subjective properties of faces on a Likert-type scale. Our results are consistent with this hypothesis. We discuss the relevance of the results for other applications of Likert-type scales.     

A projective assessment of autonomous motivation in children: Correlational and experimental evidence

This article presents two studies aimed at validating a new TAT-like projective measure of autonomous motivation in children. Study 1 assesses the validity of the new measure by correlating it with self-report questionnaires of autonomous motivation, positive and negative affect, task value and mastery goal orientation. Study 2 is an experiment in which autonomous motivation is manipulated and then assessed with the new projective measure and with a self-report scale. Results of both studies support the validity of the new projective measure. In study 2, regression analysis suggests that the new projective measure is sensitive to aspects of experimentally induced autonomous motivation that are not captured by a self-report measure.

Tradition versus tradition: Mizrahi pupils in National Religious schools in Israel, 1948–1990

Absorbing the immigrants from the Middle East and North Africa in Israel was one of the Israeli education system’s important tasks. This article deals with the way the National Religious schools treated these new immigrants and their descendants, known as Oriental Jews, Mizrahi Jews, or “Mizrahim.” The differences between Mizrahi Jews and Ashkenazi Jews (those of European ancestry) were related to differences in religious traditions, academic level, and religious observance. Educators imposed the Ashkenazi tradition on Mizrahi pupils. This created social tension and alienated Mizrahi pupils from the system. On the other side, Ashkenazi pupils who had difficulties with the heterogeneous educational environment left the public system and enrolled in more religious schools, which had a much smaller percentage of Mizrahi pupils. This segregation was even more common at the high school level. Ashkenazim attended yeshiva high schools, while Mizrahi pupils went to regular high schools. Small changes were evident by the 1990s. By that time, more Mizrahi pupils were attending the elite yeshivot, and the public system adopted a more multicultural attitude and included the Mizrahi tradition as well.     

Effective learning and retention of braille letter tactile discrimination skills in children with developmental dyslexia

Children with developmental dyslexia (DD) may differ from typical readers in aspects other than reading. The notion of a general deficit in the ability to acquire and retain procedural (‘how to’) knowledge as long‐term procedural memory has been proposed. Here, we compared the ability of elementary school children, with and without reading difficulties (DD, typical readers), to improve their tactile discrimination with practice and tested the children's ability to retain the gains. Forty 10–11‐year‐olds practiced the tactile discrimination of four braille letters, presented as pairs, while blindfolded. In a trial, participants were asked to report whether the target stimuli were identical or different from each other. The structured training session consisted of six blocks of 16 trials each. Performance was re‐tested at 24 hours and two weeks post‐training. Both groups improved in speed and in accuracy. In session 1, children with DD started as significantly less accurate and were slower than the typical readers but showed rapid learning and successfully closed the gap. Only two children with DD failed to benefit from training and were not included in subsequent data analyses. At 24 hours post‐training both groups showed effective retention of the gains in speed and accuracy. Importantly, children with DD were able to retain the gains in speed and accuracy, over a two‐week interval as effectively as typical readers. Thus, children with DD were as effective in the acquisition and retention of tactile discrimination of braille letters as typical readers of the same age. The results do not support the notion of a general procedural learning disability in DD.     

Young Israelis' Reactions to National Trauma: The Rabin Assassination andTerror Attacks

This study examined the cognitive and emotional reactions of 477 Israeli high school students to the assassination of Prime Minister Yitzhak Rabin (immediately after the event as well as 5 months later) and to a series of terror attacks. The respondents' reactions to the two events were compared as a function of gender and political orientation. About 50% of the respondents who changed their political views immediately after the assassination reverted to pre-event attitudes 5 months later. Emotional reactions to the assassination showed substantial fading after 5 months, with extent of fading unaffected by gender or political orientation. The intensity of emotional reactions was affected by political orientation: Although Rabin's supporters and his opponents reacted with equal intensity to the terror attacks, supporters reacted with the same intensity to Rabin's assassination, whereas opponents' reactions to the assassination were less intense.     

α7 Nicotinic Receptor Subunits Are Not Necessary for Hippocampal-Dependent Learning or Sensorimotor Gating: A Behavioral Characterization of Acra7-Deficient Mice

The α7 nicotinic acetylcholine receptor (nAChR) subunit is abundantly expressed in the hippocampus and contributes to hippocampal cholinergic synaptic transmission suggesting that it may contribute to learning and memory. There is also evidence for an association between levels of α7 nAChR and in sensorimotor gating impairments. To examine the role of α7 nAChRs in learning and memory and sensorimotor gating, Acra7 homozygous mutant mice and their wild-type littermates were tested in a Pavlovian conditioned fear test, for spatial learning in the Morris water task, and in the prepulse inhibition paradigm. Exploratory activity, motor coordination, and startle habituation were also evaluated. Acra7 mutant mice displayed the same levels of contextual and auditory-cue condition fear as wild-type mice. Similarly, there were no differences in spatial learning performance between mutant and wild-type mice. Finally, Acra7 mutant and wild-type mice displayed similar levels of prepulse inhibition. Other behavioral responses in Acra7 mutant mice were also normal, except for an anxiety-related behavior in the open-field test. The results of this study show that the absence of α7 nAChRs has little impact on normal, base-line behavioral responses. Future studies will examine the contribution of α7 nAChR to the enhancement of learning and sensorimotor gating following nicotine treatments.     

The Reaction of the Youth in Israel to the Assassination of Prime Minister Yitzhak Rabin

The assassination of Israeli Prime Minister Yitzhak Rabin by a political assassin caused shock, disbelief, and deep grief to the Israeli people. Particularly prominent was the reaction of the youth, who gathered in large crowds, at the site of the murder and in other places, and engaged in various mourning behaviors of a ritual nature. This drew the attention of the media in Israel and around the world. A study of approximately 700 teenagers conducted after the assassination examined their emotional reactions, participation in ritualistic mourning activities, and assessments of the reasons for feeling shocked. In all areas, differences were found as a function of gender, and attitudes toward Rabin's peace policy. An attempt was made to explain the youth's behavior in terms of the formation of groups and group identity.