Self‐tracking in effortful activities: Gender differences in consumers' task experience

Despite the increasing use of self‐tracking technologies, surprisingly little empirical research has examined the effect of self‐tracking in effortful activities on consumers' task experience. Accordingly, the present research examined the moderating role of gender in the effect of self‐tracking in effortful activities on perceived competence and task experience (namely, enjoyment and subjective vitality). Across three experiments, results suggested that self‐tracking in effortful activities increases the perceived competence, enjoyment, and subjective vitality of females more than males, and that perceived competence explains these interaction effects. Interestingly, an experimental manipulation designed to prompt overestimation of abilities attenuated these positive effects among females. As such, the present research contributes to the literatures on self‐tracking and feedback instrumentality, and offers important practical implications for marketers.     

CAREGIVER SENSITIVITY AND CONSISTENCY AND CHILDREN'S PRIOR FAMILY EXPERIENCE AS CONTEXTS FOR EARLY DEVELOPMENT WITHIN INSTITUTIONS

The current study addressed whether two institution‐wide interventions in St. Petersburg, Russian Federation, that increased caregiver sensitivity (Training Only: TO) or both caregiver sensitivity and consistency (Training plus Structural Changes: T+SC) promoted better socioemotional and cognitive development than did a No Intervention (NoI) institution during the first year of life for children who were placed soon after birth. It also assessed whether having spent less than 9 versus 9 to 36 months with a family prior to institutionalization was related to children's subsequent socioemotional and cognitive development within these three institutions. The Battelle Developmental Inventory (J. Newborg, J.R. Stock, L. Wnek, J. Guidubaldi, & J. Svinicki, 1988) was used to assess the socioemotional and cognitive functioning of children in NoI (n = 95), TO (n = 104), and T+SC (n = 86) at two to three time points during their first 6 to 12 months of residency. Results suggest that improving caregiver sensitivity can improve the cognitive development of infants in the first year of institutionalization whereas improving caregiver consistency in addition to sensitivity is more beneficial for socioemotional development than is sensitivity alone. Similarly, for children in T+SC, longer time with a family prior to institutionalization (consistent caregiver, unknown sensitivity) was associated with better socioemotional, but not cognitive, baseline scores and more rapid cognitive than socioemotional development during institutionalization. These results suggest caregiver sensitivity is more highly related to cognitive development whereas caregiver consistency is more related to socioemotional development in the first years of life.     

Behavioral correlates of learned aggression in male mice

The aims of this paper are to study the aggressive behavior in male mice with consecutive experience of victories in 2, 10, and 20 days (T2, T10, and T20 winners) of daily agonistic confrontations under the sensory contact model and to determine the most probable behavioral domains that should be used as animal models for learned aggression in humans. It has been shown that the structure of winners' behavior changes from test to test: the attacking behavior prevailed (81% of the total time) in the behavior of T2 winners. Attacks and diggings (herein: digging up and scattering the litter on the partner' territory) prevailed in the behavior of T10 winners (each approximately 40%). T20 winners demonstrated aggressive grooming half of the testing time and digging behavior 25% of the time. Correlational analysis revealed that the number of significant correlations between the behavioral domains (attacking, digging, aggressive grooming, self‐grooming, threats, rotations) and between different behavioral parameters (latency, number, total and average time) of one behavioral domain are growing from the second test to twentieth test, and the relationships between the behavioral domains change qualitatively. The following may be regarded as elements of learned aggression in male mice: (1) appearance of aggressive grooming instead of the intensive attacking behavior and (2) involvement of the digging behavior in the hostile behavior together with the threats and attacking behavior. Negative correlations between parameters of the behavioral domains may testify to the replacement of one behavioral pattern by another and reflect learned behavior. Positive correlations between certain behavioral domains may reflect the formation of a common motivational background for the winners' behavior. Aggr. Behav. 26:386–400, 2000. © 2000 Wiley‐Liss, Inc.     

An experimental approach to the study of learned aggression

The sensory contact technique increases aggressiveness in male mice and allows aggressive types of behavior to be formed as a result of the repeated experience of victories in daily agonistic confrontations. Some behavioral domains confirm the development of learned aggression in males similar to those in humans. The features are repeated experience of aggression reinforced by victories; elements of learned behavior after periods of confrontation; intent, measured by increase of the aggressive motivation prior to agonistic confrontation; and decreased emotionality, estimated by parameters of open‐field behavior. Relevant situation provokes increases in aggression (boundary aggression). This review summarizes data on the influence of positive fighting experience in daily intermale confrontations on the behavior, neurochemistry, and physiology of aggressive mice (winners). This sort of experience changes many characteristics in individual and social behaviors, these having been estimated in different tests and in varied situations. Some physiological parameters are also changed in the winners. Neurochemical data confirm the activation of brain dopaminergic systems and functional inhibition of serotonergic system in winners under the influence of the repeated experience of aggression. The expression of the neurochemical and behavioral changes observed in winners has been found to depend on the mouse strain and on the duration of their agonistic confrontations. Aggr. Behav. 26:241–256, 2000. © 2000 Wiley‐Liss, Inc.     

Atypical shape bias and categorization in autism: Evidence from children and computational simulations

The shape bias, a preference for mapping new word labels onto the shape rather than the color or texture of referents, has been postulated as a word‐learning mechanism. Previous research has shown deficits in the shape bias in children with autism even though they acquire sizeable lexicons. While previous explanations have suggested the atypical use of color for label extension in individuals with autism, we hypothesize an atypical mapping of novel labels to novel objects, regardless of the physical properties of the objects. In Experiment 1, we demonstrate this phenomenon in some individuals with autism, but the novelty of objects only partially explains their lack of shape bias. In a second experiment, we present a computational model that provides a developmental account of the shape bias in typically developing children and in those with autism. This model is based on theories of neurological dysfunctions in autism, and it integrates theoretical and empirical findings in the literature of categorization, word learning, and the shape bias. The model replicates the pattern of results of our first experiment and shows how individuals with autism are more likely to categorize experimental objects together on the basis of their novelty. It also provides insights into possible mechanisms by which children with autism learn new words, and why their word referents may be idiosyncratic. Our model highlights a developmental approach to autism that emphasizes deficient representations of categories underlying an impaired shape bias.     

Adolescent maternity: A risk factor in poverty situations?

This paper describes the psychosocial characteristics of adolescent mothers living in poverty in urban communities of Uruguay, whose children are now 0 to 5 years old. A sample of 965 mothers representative of the poor urban communities in the entire country was studied. One hundred thirty-six of these mothers were adolescents, 19 years old or younger. Six major areas were explored: socioeconomic status and social support, family characteristics, child-rearing practices, maternal and paternal availability, and characteristics of the child. In the group of children 2 to 5 years of age, psychomotor development was explored using the Test de Desarrollo Psicomotor (TEPSI). Psychosocial risk and child development were compared for adolescent and nonadolescent poor urban mothers. Children in both groups showed negative effects. It was not found that children of adolescent mothers did worse than those of nonadolescent mothers. Therefore, it was concluded that adolescent maternity is a complex phenomenon that cannot be viewed in isolation from the social environment in which it takes place. The results indicated that in poor communities the poverty-related risk factors may obscure the effect of the age-related ones.     

Extralinguistic control of language comprehension and production in the nonfluent child

The study investigated (1) the developmental progression postulated to exist between comprehension and production of sentences having the same grammatical form, and (2) the effects of syntactic, semantic, and extralinguistic variables on comprehension and production in nursery-school children. Comprehension trials required choices among four puzzle piece alternatives for which (a) both subject and object pieces differed (Phase I) or (b) only grammatical subject pictures differed (Phase II). During production trials children were asked to label preconstructed puzzles. Results indicated the comprehension-production relationship to vary as a function of age, sentence prepositions, and phases. Differential effects of semantic and extralinguistic variables during comprehension were found primarily for the youngest children, suggesting that logical relations among agent-actor-object were not sole controllers of language comprehension. Nonsyntactic control of production responses was not found.     

Ignoring information in binary choice with continuous variables: When is less “more”?

When can a single variable be more accurate in binary choice than multiple sources of information? We derive analytically the probability that a single variable (SV) will correctly predict one of two choices when both criterion and predictor are continuous variables. We further provide analogous derivations for multiple regression (MR) and equal weighting (EW) and specify the conditions under which the models differ in expected predictive ability. Key factors include variability in cue validities, intercorrelation between predictors, and the ratio of predictors to observations in MR. Theory and simulations are used to illustrate the differential effects of these factors. Results directly address why and when “one-reason” decision making can be more effective than analyses that use more information. We thus provide analytical backing to intriguing empirical results that, to date, have lacked theoretical justification. There are predictable conditions for which one should expect “less to be more.”     

Improvements in early care in Russian orphanages and their relationship to observed behaviors

This article describes a unique study that attempts to promote positive social‐emotional relationships and attachment between caregivers and children in orphanages in St. Petersburg, Russia. The children who reside in these orphanages are typically between birth and 48 months of age; approximately 50% are diagnosed with disabilities, and approximately 60% leave through foreign adoption. Initially, their orphanage caregivers showed a high level of current anxiety and depression and were detached from and communicated little with the children. Likewise, during baseline observations, the children demonstrated poor attachment behaviors such as indiscriminant friendliness, lack of eye contact with adults, aggression, and impulsive behavior. Two interventions were used in a quasiexperimental design: (a) training of caregivers to promote warm, responsive caregiving and (b) staffing and structural alterations to support relationship building, especially increasing the consistency of caregivers. The methodology required that both the training and staffing interventions be provided to one orphanage, only the training to a second, and neither to a third. (At any one time, ns = 80–120 in each condition.) Initial informal observations reveal positive behaviors for both the caregivers and the children, such as increased two‐way conversations, animated and enthusiastic emotional responses, and positive social and language interactions. Early data analyses show an increase in the consistency and stability of caregivers and increased scores for caregivers on every subscale of the HOME Scales. Children showed improvements in physical growth, cognition, language, motor, personal‐social, and affect, with children having severe disabilities improving the most. The implications of these findings suggest that training staff with modest educational backgrounds and structural changes are effective, can increase socially responsive caregiving behaviors, and improves social interactions of children, at least temporarily. ©2005 Michigan Association for Infant Mental Health.