Water can induce better spatial memory performance than food in radial maze learning by rats1

Abstract: Two experiments were carried out to test the differential effects of hunger and thirst on memory performance. In Experiment 1, two groups of rats were exposed to an original radial‐maze task and then to a 30‐min retention‐memory task. The food‐deprived group completed the original task more quickly than the water‐deprived group, but the thirsty group mastered the memory task more quickly than the hungry group (p < 0.01). In Experiment 2, deprivation conditions were changed from the original to the memory task. The food‐water group completed the memory task more rapidly than the water‐food group (p < 0.05). Thirst proved to constitute a more favorable condition for retention‐memory learning. The applicability of several theories is discussed.     

Dual scaling of comparison and reference stimuli in multi-dimensional psychological space

Dzhafarov and Colonius (Psychol. Bull. Rev. 6 (1999)239; J. Math. Psychol. 45(2001)670) proposed a theory of Fechnerian scaling of the stimulus space based on the psychometric (discrimination probability) function of a human subject in a same-different comparison task. Here, we investigate a related but different paradigm, namely, referent-probe comparison task, in which the pair of stimuli (x and y) under comparison assumes substantively different psychological status, one serving as a referent and the other as a probe. The duality between a pair of psychometric functions, arising from assigning either x or y to be the fixed reference stimulus and the other to be the varying comparison stimulus, and the 1-to-1 mapping between the two stimulus spaces X and Y under either assignment are analyzed. Following Dzhafarov and Colonius, we investigate two properties characteristic of a referent-probe comparison task, namely, (i) Regular cross-minimality—for the pair of stimulus values involved in referent-probe comparison, each minimizes a discrimination probability function where the other is treated as the fixed reference stimulus; (ii) Nonconstant self-similarity—the value of the discrimination probability function at its minima is a nonconstant function of the reference stimulus value. For the particular form of psychometric functions investigated, it is shown that imposing the condition of regular cross-minimality on the pair of psychometric functions forces a consistent (but otherwise still arbitrary) mapping between X and Y, such that it is independent of the assignment of reference/comparison status to x and to y. The resulting psychometric differentials under both assignments are equal, and take an asymmetric, dualistic form reminiscent of the so-called divergence measure that appeared in the context of differential geometry of the probability manifold with dually flat connections (Differential Geometric Methods in Statistics, Lecture Notes in Statistics, Vol. 28, Springer, New York, 1985). The pair of divergence functions on X and on Y, respectively, induce a Riemannian metric in the small, with psychometric order (defined in Dzhafarov & Colonius, 1999) equal to 2. The difference between the Finsler-Riemann geometric approach to the stimulus space (Dzhafarov & Colonius, 1999) and this dually-affine Riemannian geometric approach to the dual scaling of the comparison and the reference stimuli is discussed.     

Mothers' and Fathers' Psychological Symptoms and Marital Functioning: Examination of Direct and Interactive Links with Child Adjustment

A community sample of 51 mother-father dyads with a school-age child rated marital functioning, parental psychological symptoms, and children's adjustment problems. Parents with more psychological symptoms reported lower marital satisfaction levels. Mothers' and fathers' marital functioning and symptomatology individually related to children's adjustment in the expected directions. In addition, interaction tests revealed that, for mothers but not fathers, the combination of poorer marital functioning and higher levels of psychological symptoms amplified the negative effects on children's adjustment problems. These findings support the hypothesis that parental psychopathology and marital adjustment together affect children's functioning in an interactive way, underscoring the need to consider multiple family influences in studies of child development.     

Use of the CAFAS to Evaluate Outcome for Youths with Severe Emotional Disturbance Served by Public Mental Health

Outcomes are reported for youths with serious emotional disturbance receiving customary services from community mental health service providers who receive state mental health funds. Various outcome indicators for the Child and Adolescent Functional Assessment Scale (CAFAS) are described, as well as a procedure for categorizing youths into client types based on the CAFAS subscale scores. The youth's intake assessment was compared to the last CAFAS evaluation that the youth received. A statistically significant reduction in mean CAFAS total score was observed for the entire sample and for each client type. In addition, the mean number of subscales on which the youth was rated as severely impaired significantly decreased for the total sample and for each client type. The proportion of youths who experienced a clinically meaningful improvement in functioning was 58.6%. For the subset of youths who were rated as severely impaired on one or more subscales at intake, 53.1% left services without any severe impairments. The pattern of outcome results differed for subgroups based on type and extent of impairment. Implications of these findings and suggestions for using outcome monitoring to improve services in the public mental health sector are discussed.     

Successful Development: Childhood Antecedents of Adaptive Psychosocial Functioning in Adulthood

The study was part of the Jyväskylä Longitudinal Study of Personality and Social Development. Data on developmental background for 131 women and 130 men consisted of variables for (1) emotion regulation at age 8, (2) cognitive–motivational orientation at age 14, and (3) family circumstances, and data on adult outcomes for variables concerning psychosocial functioning at age 36. Links between the childhood and adulthood variables were investigated using the LISREL model which consisted of two parts, the measurement model and the structural equation model. Two correlating latent factors emerged from adult outcomes for men and women: Social Functioning, consisting of external criteria for successful development (stability of career line, controlled drinking, socialization) and Psychological Functioning, consisting of internal criteria (self-esteem and psychological well-being). Only Social Functioning was explained by developmental background. High emotion regulation in childhood was a more robust antecedent of good social functioning in men than in women.     

Cultural Effects on English Language Teachers’ Judgments of Metaphoric Creativity: A Mixed‐Methods Approach

This study explored cultural influences on English language teachers’ judgments of English metaphors created by Taiwanese learners of English. Based on a mixed‐methods approach, it delved into the rating severity and implicit evaluation criteria of two cultural groups of teachers: Taiwanese and Americans. Ten Taiwanese teachers and 10 American teachers evaluated 120 novel metaphoric expressions using the Consensual Assessment Technique (Amabile, 1996). Creativity in context: Update to the social psychology of creativity. They further filled out a creativity evaluation survey, which was designed to bring to light what qualities within the metaphors influenced their judgments of metaphoric creativity. With the teachers’ ratings being analyzed by means of many‐facet Rasch measurement, this study first indicated that the American teachers were more severe raters than the Taiwanese teachers, but no significant difference was found between them. Analysis of the evaluation survey further demonstrated that both cultural groups shared largely similar evaluation criteria; yet, two contrasts emerged between them. Specifically, the American teachers seemed to favor metaphors that expressed the creator's thoughts; by contrast, the Taiwanese teachers preferred metaphors that relied on readers’ imagination to work out the meanings. These findings shed light on implications for teaching creativity in English L2 classrooms and assessing learners’ creative language artifacts in an English L2 context.     

Hanin: Nostalgia among Syrian refugees

We examined the psychological functions of nostalgia (hanin in Arabic) among Syrian refugees residing in Saudi Arabia, who were forcibly displaced during the Syrian civil war. Forced displacement entails disruption, loss, and mourning, creating a salient contrast between one's past and present circumstances, which could attenuate the benefits of nostalgia. Studying this population thus affords a strong test of the boundaries of nostalgia's functionality. We experimentally induced nostalgia via vivid autobiographical recall and then assessed various psychological functions, as well as current affect. A supplemental objective was to examine the role of dispositional resilience. Most established benefits of nostalgia also accrued to Syrian refugees. However, contrary to previous findings, nostalgia decreased optimism, highlighting the limits of its palliative capacity among displaced individuals. As hypothesized, the impact of nostalgia was moderated by dispositional resilience, which acted as a catalyst of the emotion's benefits and as an inhibitor of its costs.     

Enhancing Program Quality in a National Sample of After‐school Settings: The Role of Youth–Staff Interactions and Staff/Organizational Functioning

Using multilevel data from the national evaluation of Boys and Girls Clubs of America (BGCA), this study examined associations among programmatic structures, workplace and workforce characteristics, and relational practices of program staff as they relate to young people's ratings of their experience attending local clubs. The sample included 57,710 members and 5,231 staff members at 740 BGCA sites throughout the United States. Staff relational practices—including establishing caring relationships, setting high expectations, positive behavior management, encouraging youth input and agency, and cultural sensitivity—explained associations between staffing and organizational functioning and youths’ perceptions of the quality of their clubs. Findings suggest a central role of staff relational practices in establishing conditions that youth experience positively, and that staffing and organizational processes, including community engagement and teamwork and efficiency can be viewed as foundations for establishing a culture of positive adult‐youth interaction, which in turn can contribute to the promotion of positive youth development. Further, identification with the experiences of youth had a direct association with youths’ perceptions of club quality. These results underscore the importance of staff workforce development initiatives as key to improving youth experiences in after‐school programs.     

Infant sleep moderates the effect of infant temperament on maternal depressive symptoms,maternal sensitivity,and family functioning

Observed infant temperamental difficulty and infant sleep efficiency and sleep variability were examined as predictors of maternal depressive symptoms, maternal sensitivity, and family functioning. Eight observations at 8-months postpartum were used to assess infant temperament, and actigraphy was used to measure infant sleep for 1-week at the time of the 8-month assessment. Structured clinical interviews were used to assess maternal depressive symptoms between 5 and 12 months postpartum and at 15 months postpartum, and observational assessments were used to assess maternal sensitivity and family functioning at 15 months postpartum. Variability in infant sleep moderated the effect of infant temperament on maternal depressive symptoms, maternal sensitivity, and family functioning. Infant temperament was positively associated with maternal depressive symptoms when variability in infant sleep efficiency was high, but not when variability in infant sleep efficiency was low. Likewise, infant temperament was negatively associated with maternal sensitivity and family functioning when variability in infant sleep efficiency was high, but not when variability in infant sleep efficiency was low. Results underscore the importance of infant sleep for maternal and family health.     

Parent-reported executive functioning in young children treated for cancer

It is well known that children treated for cancer are at risk for cognitive and functional impairments. Such research is largely based on studies of late effects in school-aged or older children. However, far less is known about executive function weaknesses in preschool-aged children treated for cancer. Thus, the aim of this study was to examine executive functioning in a clinically referred sample of young oncology patients, and its association with broader domains of functioning. Data from 61 young children with cancer, who were referred for clinical cognitive evaluations, were abstracted and included in this study. Patients were 5.00 years of age (SD = 0.72) at assessment, 54.1% male, and two-thirds (63.9%) had been treated for brain tumors. Most executive functions were significantly discrepant from the mean, with 47.5% of preschoolers having parent-reported working memory concerns within the clinically significant range. There were no differences in executive functioning based on diagnosis or treatment status. Parent-reported executive functioning was strongly correlated with global intelligence and adaptive functioning, with some indices also associated with nonverbal problem solving and pre-academic skills. Ultimately, results indicate the presence of emerging weaknesses in executive functioning in young children with cancer, and add to a growing body of literature highlighting the potential cognitive and behavioral risks associated with a cancer diagnosis in early childhood.