Static and dynamic balance skills of trainable children with Down's syndrome.

This study compared static and dynamic balance performance of 25 subjects with Down's Syndrome and 25 without Down's Syndrome; controls were placed on CA and IQ. No significant difference between the two samples' static balance performance was noted; subjects with the Down's Syndrome had significantly superior dynamic balance performance.     

Impaired tactual perception in children with Down's syndrome

Using standardized neuropsychological tests, tactual finger discrimination, graphaesthesia and stereognosis were studied in a group of 11 children aged 7–11 years with Down's syndrome (DS). All tasks were solved without visual control. The performance was subnormal in each test and the results of the stereognosis test were particularly poor. It was ascertained that the DS children could understand test instructions. Moreover, under visual control all objects used in the stereognosis test were handled correctly. The results suggest that tactual perception is subnormal in children with DS. The pathogenesis of the somatosensory abnormalities should be explored.     

Perceived sex differences in managerially relevant characteristics

A national sample of 884 male managers completed a survey of managerially relevant perceived sex differences. Females were rated lower on the following scales: (a) aptitudes, skills, and knowledge; (b) motivation and job interest; (c) temperament; and (d) work habits and attitudes. Moreover, lower ratings of women were prevalent among males in a variety of jobs, organizations, and industries.     

A training program to improve the memory of children with Down's syndrome

This study starts out from the general agreement about the explicit memory deficits in children with Down's syndrome. Our aim is to explore the possibilities of the computer as a valuable instrument with which to train memory by teaching cognitive rehearsal strategies. The sample was made up of 40 students with Down's syndrome and was divided into two research groups: control and experimental. The results show a clear tendency towards memory improvement in the experimental group. These results can be considered indicators of the effectiveness of the intervention. They are also very interesting for education, in the sense that teachers can help the students with Down's syndrome to improve their memory capacity.     

Some effects of token rewards on school achievement of children with Down's syndrome

The effectiveness of a token economy system in producing improvement in the academic performance of children with Down's syndrome was tested. One group of seven children received token reinforcement for correct responses and showed significant improvement both in arithmetic and language. A second matched group of six children received only verbal praise for correct responses to the same instructional materials and failed to improve in arithmetic but showed significant gains in language. Re-test scores one year later revealed that the Token Group maintained its gains in both subjects whereas the language performance of the No-Token Group showed a significant decline.     

Habituation in normal and Down's syndrome fetuses.

The ability of ten normal and two Down's syndrome fetuses to habituate to a repeated auditory stimulus was assessed. The normal fetuses were assessed on two separate occasions during the final trimester of pregnancy. The number of trials to habituate and latency to respond were recorded. The results demonstrated that all normal fetuses exhibited a decrement in response to repeated presentations of the stimulus, a 250-Hz sine wave. This was the result of habituation and not fatigue since fetuses recovered responding upon presentation of a new (500 Hz) stimulus and habituated faster on re-presentation of the original stimulus. The performance of fetuses remained stable over the two testing periods. The response of the Down's syndrome fetuses was different to that of normal fetuses rarely overlapping indices of habituation exhibited by normal fetuses. The study concludes that habituation may be a powerful tool to examine the behavioural and sensory development of the fetus and may be of use in the antenatal assessment of the existence and severity of neural abnormality.     

Perceived proposer personality characteristics and gender differences in acceptance of casual sex offers

In a highly influential paper, Clark and Hatfield (1989) demonstrated that, whereas men were quite likely to accept a casual sexual offer from a confederate research assistant, women never did so. The current research provides a more in-depth explanation of gender differences in acceptance of casual sex offers via 4 (quasi-) experiments. First, using a person-perception paradigm, I assessed people's impressions of women and men who proposed a casual sexual encounter in the same manner that confederates in Clark and Hatfield did. Women and men agreed that female proposers were more intelligent, successful, and sexually skilled than men who made the same proposals. Second, I demonstrated that the large gender differences from the original Clark and Hatfield study could be eliminated by asking participants to imagine proposals from (attractive and unattractive) famous individuals, friends, and same-gender individuals. Next, I assessed factors associated with likelihood of agreeing to the casual sex proposal. The extent to which women and men believed that the proposer would be sexually skilled predicted how likely they would be to engage in casual sex with this individual. Finally, I examined these factors in the context of actual encounters from the participants' previous experiences, and the results were replicated in this context. Overall findings suggest that the large gender differences Clark and Hatfield observed in acceptance of the casual sex offer may have more to do with perceived personality characteristics of the female versus male proposers than with gender differences among Clark and Hatfield's participants and that sexual pleasure figures largely in women's and men's decision making about casual sex.     

Vocalization and looking behaviour of Down's syndrome infants.

The effect of contingent and non-contingent vocal stimulation on vocalization and looking behaviour was investigated for 10 Down's syndrome infants. There were two experimental sessions consisting of four stages, namely 1 min base-line, 1 min experimental condition, a further 1 min base-line and a final 2 min experimental condition. Maternal vocal stimulation was contingent upon infant vocalization for the experimental conditions of one session and was presented every 10 s independent of infant vocalization for the experimental conditions of the other session. Neither condition increased infant vocalization but there was a significant decrease in looking at mother during the base-line stages which followed maternal vocalization (F = 5.07, d.f. = 4, 28, P less than 0.01). It is suggested that looking behaviour may be an important indication of competence in pre-linguistic social communication for developmentally delayed infants.     

The role of transitions to new age groups in the development of institutionalized children

Children in two institutions in St. Petersburg (Russian Federation) experienced ward transitions, one in which caregivers were trained to provide sensitive, responsive caregiving and one that conducted business as usual. A third institution eliminated transitions, received the same training, and implemented a variety of structural and employment changes designed to promote improved caregiver–child interactions and relationships. While the no‐transition comprehensive intervention group of children steadily improved in Battelle Developmental Inventory (LINC Associates, 1988 ) scores across all age intervals, the children in the institution who encouraged some positive caregiver–child interactions improved before and after, but not during, an age period that involved a transition. In contrast, the no‐treatment group displayed no developmental changes across any age period with or without a transition. These results suggest that the common institutional practice of ward transitions to new peers and caregivers is potentially disruptive to infants' and toddlers' general development, but primarily in a context in which some degree of caregiver–child sensitive and responsive interactions are encouraged.     

Depression symptoms among Omani children: age and sex differences

The present study explored the existence of depressive symptoms among Omani children according to sex and age. The Arabic translated version of the Multidimensional Child and Adolescent Depression Scale was administered to 1,749 children (828 boys, 921 girls) ranging in age from 10 to 18 years old (M= 13.9, SD = 2.3) from 10 schools representing different areas of Muscat, Oman. The results showed no differences in the total mean scores on depression between boys and girls, although differences were observed on 4 of the 8 subscales. Boys had significantly higher scores on Weak concentration and Loneliness, while girls scored higher for Sleep problems and Anhedonia. Significant differences across ages also were exhibited for the total score as well as four subscales (Pessimism, Weak concentration, Anhedonia, and Fatigue), suggesting higher rates of depression among 15- to 18-year-olds.     

Relationships of oral stereognostic ability to age and sex of children

A battery of items testing oral stereognostic ability was individually presented to 168 children, 12 boys and 12 girls at each of seven age levels from 4-5 to 11-4. Age was significantly related to oral stereognostic scores; older subjects scored significantly higher than younger subjects. Sex was also significant; girls scored higher than boys. The interaction of age and sex was not significant.     

Self-esteem and institutionalized delinquent offenders: the role of background characteristics.

Some of the delinquency literature sustains the assumption that inept persons doing unworthy things is the self-view held by youth offenders, "Disadvantaged" or "adverse" background characteristics are often assumed to account for low self-esteem among delinquent offenders. However, the implications of control theory suggest that youths having few bonds to people and institutions are relatively "free" to drift into delinquency without serious damage to self-esteem. The hypothesis we examined was derived from the work of control theorists: that self-esteem would be higher for offenders "removed" from conventional ties, lower for those who maintained conventional attachments. Data from 75 male delinquent offenders incarcerated at a correctional youth institution are used in testing this relationship. Our hypothesis received strong support. The implication drawn from these results is that the impact of the correctional process on self-esteem may be far less important than the myriad relationships previously established with people and institutions. These results pertaining to a special category of youth are in keeping with the reported findings on the link between deprivation and self-esteem of general youth populations.     

Perceived sexual self-control and condom use with primary and casual sex partners: age and relationship agreement differences in a Portuguese sample

Abstract

Objective: Consistent condom use is still not ideal. Research showed that perceived sexual self-control is associated with greater likelihood of using condoms. However, this association seems to vary according to age and relationship agreement (i.e. non-consensual non-monogamy, NCNM vs. consensual non-monogamy, CNM).

Design: Cross-sectional study with 307 heterosexual users of a dating web site for romantically involved individuals (81.8% men; M_age = 42.24, SD?=?9.65, range: 23–76 years). All individuals were in a romantic relationship (M_length = 13.47 years, SD?=?9.39).

Measures: Demographic information, perceived sexual self-control, condom use frequency (casual sex partners; primary partner in the last 3 months) and relationship agreement.

Results: Independently of relationship agreement, perceived sexual self-control was positively associated with condom use frequency with casual sex partners among younger and middle age participants, but not older ones (>49 years). Regarding the primary partner, a similar pattern emerged for CNM participants. In contrast, no significant association between perceived sexual self-control and condom use frequency with the primary partner emerged for NCNM individuals, regardless of age.

Conclusion: Our findings can inform evidence-based strategies to promote consistent condom use as an effective behaviour to prevent sexually transmitted infections, especially among older and NCNM individuals.     

Test settings and the sensorimotor performance of infants with Down's syndrome

The effects of test setting (home vs classroom) on the sensorimotor performance of 7 Down's syndrome infants were examined. The 7 Uzgiris-Hunt scales were administered on 10 occasions over a 4-mo. period, yielding 5 home-classroom comparisons for each subject. Analyses of mean performance scores, intersetting test-retest reliability, and intrasetting stability indicated that test performance was minimally affected by test setting, but that intrasetting interindividual invariance in performance was less stable when the subjects were tested in a classroom environment.     

Parent-child physical play: The effects of sex and age of children and parents

Physical play is an important vehicle for differential socialization of boys and girls into appropriate sex roles. The aim of the study was to examine developmental changes in patterns of parent-child physical play as a function of the sex of parent and child. Three hundred ninety families with a total of 746 children ranging in age from under 1 year to 10 years were contacted by telephone and questioned about the frequency of physical-play interactions with their children. The results indicated that the strongest variable affecting the frequency of physical play was the age of the child. This developmental effect was curvilinear, with comparatively low levels prior to age one, a peak in the early childhood years, and the decline thereafter. Fathers tended to engage in more physical play than mothers. Effects of child sex were less evident, but tended to indicate that girls participated more often in nonstrenuous physical games with their parents, such as pattycake and being bounced on the parent's knee, while boys participated more often in activities such as wrestling and ball playing. There was a modest but significant tendency for older parents to engage less often in physical play with their children at each age level. The implications of parent-child physical play for sex role typing were noted.