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1.
Children with DCD demonstrate impairments in bimanual finger tapping during self-paced tapping and tapping in synchrony to different frequencies. In this study, we investigated the ability of children with DCD to adapt motorically to perceptible or subliminal changes of the auditory stimuli without a change in frequency, and compared their performance to typically developing controls (TDC). Nineteen children with DCD between ages 6–11 years (mean age ± SD = 114 ± 21 months) and 17 TDC (mean age ± SD = 113 ± 21 months) participated in this study. Auditory perceptual threshold was established. Children initially tapped bimanually to an antiphase beat and then to either a perceptible change in rhythm or to gradual subliminal changes in rhythm. Children with DCD were able to perceive changes in rhythm similar to TDC. They were also able to adapt to both perceptible and subliminal changes in rhythms similar to their age- and gender- matched TDC. However, these children were significantly more variable compared with TDC in all phasing conditions. The results suggest that the performance impairments in bilateral tapping are not a result of poor conscious or sub-conscious perception of the auditory cue. The increased motor variability may be associated with cerebellar dysfunction but further behavioral and neurophysiological studies are needed.  相似文献   

2.
Sensory dysfunctions may underlie key characteristics in children with Autism Spectrum Disorders (ASD). The current study aimed to investigate auditory change detection in children with ASD in order to determine event-related potentials to meaningless and meaningful speech stimuli. 11 high functioning boys with a diagnosis of autism spectrum disorders (mean age = 13.0; SD = 1.08) and 11 typically developing boys (mean age = 13.7; SD = 1.5) participated in a mismatch negativity (MMN) paradigm. Results revealed that compared to TD controls, the children with ASD showed significantly reduced MMN responses to both words and pseudowords in the frontal regions of the brain and also a significant reduction in their activation for words in the Central Parietal regions. In order to test the relationship between sensory processing and auditory processing, children completed the Adult and Adolescent Sensory Profile. As predicted, the children with ASD showed more extreme sensory behaviours and were significantly higher than their typically developing controls across three of the sensory quadrants (sensory sensitivity, low registration and sensory avoidance). Importantly, only auditory sensory sensitivity was able to account for the differences displayed for words in the frontal and central parietal regions when controlling for the effect of group, revealing an inverse relationship of the higher sensory sensitivity scores the less activation in response for words. We discuss how the expression of sensory behaviours in ASD may result in deficient neurophysiological mechanisms underlying automatic language processing.  相似文献   

3.
Death and aging anxieties are related to higher psychological distress, but no study has examined whether these relationships are moderated by emotional complexity, an important indicator of adaptive emotional regulation among older adults. Participants (N = 188; mean age = 57; range = 29–100) rated their death and aging anxieties, general psychological distress, and reported their emotions on a daily basis over 14 days. Results showed that emotional complexity moderated the relationship between each of the two anxieties and psychological distress (i.e., the positive relationship between the two anxieties and psychological distress existed only among subjects with low emotional complexity). The findings suggest that emotional complexity buffers against psychological distress, and can be further explored as a facilitating mechanism in protecting against the negative mental health effects of aging and death anxieties.  相似文献   

4.
《Acta psychologica》2013,142(2):184-194
Older adults are known to have reduced inhibitory control and therefore to be more distractible than young adults. Recently, we have proposed that sensory modality plays a crucial role in age-related distractibility. In this study, we examined age differences in vulnerability to unimodal and cross-modal visual and auditory distraction. A group of 24 younger (mean age = 21.7 years) and 22 older adults (mean age = 65.4 years) performed visual and auditory n-back tasks while ignoring visual and auditory distraction. Whereas reaction time data indicated that both young and older adults are particularly affected by unimodal distraction, accuracy data revealed that older adults, but not younger adults, are vulnerable to cross-modal visual distraction. These results support the notion that age-related distractibility is modality dependent.  相似文献   

5.
This study examined how computer-game preference relates to mental-rotation test (MRT) performance and to gender differences. Subjects were 861 German secondary-school children (mean age = 14.67; range 10–20 years). Latent class analysis with the data of a computer-game preference scale revealed three types of players: “non-players”, “action-and-simulation game players” and “logic-and-skill-training game players”. Large gender differences were found with respect to class assignment. More females than males were found in the “logic-and-skill-training game player” class (82.9%) and in the class of “non-players” (81.9%). Males in contrast were overrepresented (81.7%) in the class of “action-and-simulation game players”. As expected, males on average outperformed females in mental-rotation test performance (d = 0.63). Furthermore, ANOVA results indicated mean differences in mental-rotation ability between action-and-simulation players and non-players (partial η2 = .01) as well as age differences (partial η2 = .04). With boys, non-players on average had lower MRT scores than action-and-simulation game players. For females, computer-game preference was unrelated to MRT performance. Results are discussed within a nature–nurture-interactionist framework of gender differences in spatial abilities.  相似文献   

6.
Maternal reflective functioning (RF) has been associated with children’s behavioral development. This study examined maternal prenatal and postnatal RF, as measured by the Pregnancy Interview and Parent Development Interview, as multidimensional constructs. It was also examined whether the RF-dimensions were associated with children’s temperament and externalizing behavior, as assessed by several questionnaires. The sample consisted of 123 first-time mothers (M age = 22.85 years, SD = 2.21) and their children (M age = 19.97 months, SD = 0.85, 56% male). Two related but distinct dimensions were found for prenatal RF, termed self-focused and child-focused mentalization. Three dimensions were observed for postnatal RF, termed self-focused, child-focused, and relation-focused mentalization. Results showed that prenatal RF negatively related to reported child physical aggression. Postnatal self-focused RF was positively linked to externalizing behavior and negative emotionality in offspring, while relation-focused RF scores were negatively associated with child physical aggression. Findings show that it is important to also look at the specific RF-dimensions when examining the effects of maternal RF on children’s behavioral development, as differential associations with behavioral outcomes exist. Discussion further focuses on the importance of these findings in prevention and clinical practice, and suggestions are being made to further improve the measurement of maternal RF-dimensions.  相似文献   

7.
《Behavior Therapy》2014,45(6):806-816
Although a small number of studies characterized cross-sectional associations between sleep hygiene and insomnia severity, no prior study has examined their relationships prospectively. Further, the relationship between sleep hygiene and insomnia severity among college students has rarely been examined. This study examined the prevalence of diverse sleep hygiene behaviors and their associations with insomnia severity in two independent samples of college students from a cross-sectional (N = 548; mean age = 19; 59% female; 71% White) and a two-wave short-term prospective (N = 157; mean age = 19; 71% female; 76% White) study. A total of 12% to 13% of students reported clinically significant insomnia. On average, students reported frequent engagement in inconsistent sleep-wake schedules and lounging and worrying/thinking about important matters in the bed. Improper sleep scheduling, behaviors that promote arousal near bedtime, and uncomfortable sleeping environments were positively associated with cross-sectional insomnia severity. After controlling for other well-established risk factors, only improper sleep scheduling remained significant. Prospectively, baseline improper sleep scheduling predicted insomnia severity at a 2-month follow-up after controlling for baseline insomnia severity and other well-established risk factors. Together, findings suggest a potential unique role of improper sleep scheduling in insomnia among college students.  相似文献   

8.
We examined event-related electroencephalography (EEG) oscillations, including event-related spectral perturbations (ERSP) and intertrial coherence (ITC), to compare feedback processing during a chance-based reward vs. non-reward task in groups of 10–12-year-old (n = 42), 13–14-year-old (n = 34) and 15–17-year-olds (n = 32). Because few, if any studies have applied these analytic methods to examine feedback processing in children or adolescents, we used a fine-grained approach that explored one half hertz by 16 ms increments during feedback (no win vs. win events) in the theta (4–8 Hz) frequency band. Complex wavelet frequency decomposition revealed that no win feedback was associated with enhanced theta power and phase coherence. We observed condition and age-based differences for both ERSP and ITC, with stronger effects for ITC. The transition from childhood to early adolescence (13–14 yrs.) was a point of increased differentiation of ITC favoring no win vs. wins feedback and also compared to children or older adolescents, a point of heightened ITC for no win feedback (quadratic effect).  相似文献   

9.
PurposeThe purpose of the present study was to enhance our understanding of phonological working memory in adults who stutter through the comparison of nonvocal versus vocal nonword repetition and phoneme elision task performance differences.MethodFor the vocal nonword repetition condition, participants repeated sets of 4- and 7-syllable nonwords (n = 12 per set). For the nonvocal nonword repetition condition, participants silently identified each target nonword from a subsequent set of three nonwords. For the vocal phoneme elision condition, participants repeated nonwords with a target phoneme eliminated. For the nonvocal phoneme elision condition, participants silently identified the nonword with the designated target phoneme eliminated from a subsequent set of three nonwords.ResultsAdults who stutter produced significantly fewer accurate initial productions of 7-syllable nonwords compared to adults who do not stutter. There were no talker group differences for the silent identification of nonwords, but both talker groups required significantly more mean number of attempts to accurately silently identify 7-syllable as compared to 4-syllable nonwords. For the vocal phoneme elision condition, adults who stutter were significantly less accurate than adults who do not stutter in their initial production and required a significantly higher mean number of attempts to accurately produce 7-syllable nonwords with a phoneme eliminated. This talker group difference was also significant for the nonvocal phoneme elision condition for both 4- and 7-syllable nonwords.ConclusionPresent findings suggest phonological working memory may contribute to the difficulties persons who stutter have establishing and/or maintaining fluent speech.Educational Objectives: (a) Readers can describe the role of phonological working memory in planning for and execution of speech; (b) readers can describe two experimental tasks for exploring the phonological working memory: nonword repetition and phoneme elision; (c) readers can describe how the nonword repetition and phoneme elision skills of adults who stutter differ from their typically fluent peers.  相似文献   

10.
The literature shows that exposure to societal threat stemming from criminality can elicit an increase in right-wing authoritarianism (RWA) via the mediation of the loss of perceived control. In this study, we investigated whether the perception of meaning can act as a buffering factor for such process, performing an experiment with 316 Italian university students (67.8% women; mean age = 25.81, SD = 9.18). A moderated mediation model showed that the loss of perceived control mediated the relation between societal threat stemming from criminality and RWA, but that the second link was significant only among people low in meaning. Limitations, implications and possible developments of this research are discussed.  相似文献   

11.
Association studies between the NEO five factor personality inventory and COMT rs4680 have focused on young adults and the results have been inconsistent. However, personality and cortical changes with age may put older adults in a more sensitive range for detecting a relationship. The present study examined associations of COMT rs4680 and personality in older adults.Genetic association analyses were carried out between the NEO and the targeted COMT rs4680 in a large, well-characterized sample of healthy, cognitively normal older adults (N = 616, mean age = 69.26 years).Three significant associations were found: participants with GG genotype showed lower mean scores on Neuroticism (p = 0.039) and higher scores on Agreeableness (p = 0.020) and Conscientiousness (p = 0.006) than participants with AA or AG genotypes.These results suggest that older adults with higher COMT enzymatic activity (GG), therefore lower dopamine level, have lower Neuroticism scores, and higher Agreeableness and Conscientiousness scores. This is consistent with a recent model of phasic and tonic dopamine release suggesting that even though GG genotype is associated with lower tonic dopamine release, the phasic release of dopamine might be optimal for a more adaptive personality profile.  相似文献   

12.
The current study examined BMI and body image dissatisfaction as predictors of physical and mental health-related quality of life (HRQL) and psychosocial functioning in a sample of 414 undergraduate students (mean age = 21.5, SD = 4.9; mean BMI = 23.6, SD = 5.2). In men and women, higher BMI was correlated with body image dissatisfaction and physical HRQL, but not with any measures of psychosocial functioning, whereas higher body image dissatisfaction was associated with poorer physical HRQL and psychosocial functioning. Furthermore, body image dissatisfaction was observed to mediate the relationship between BMI and physical HRQL in men and women. Interestingly, in this model, higher BMI predicted increased self-esteem. These findings suggest that body image dissatisfaction may be an important target for health interventions.  相似文献   

13.
Fine motor skill proficiency is an essential component of numerous daily living activities such as dressing, feeding or playing. Poor fine motor skills can lead to difficulties in academic achievement, increased anxiety and poor self-esteem. Recent findings have shown that children’s gross motor skill proficiency tends to fall below established developmental norms. A question remains: do fine motor skill proficiency levels also fall below developmental norms? The aim of this study was to examine the current level of fine motor skill in Irish children. Children (N = 253) from 2nd, 4th and 6th grades (mean age = 7.12, 9.11 and 11.02 respectively) completed the Fine Motor Composite of the Bruininks Oseretsky Test of Motor Proficiency 2nd Edition (BOT-2). Analysis revealed that only 2nd grade children met the expected level of fine motor skill proficiency. It was also found that despite children’s raw scores improving with age, children’s fine motor skill proficiency was not progressing at the expected rate given by normative data. This leads us to question the role and impact of modern society on fine motor skills development over the past number of decades.  相似文献   

14.
Research on bullying has highlighted the role of morality in explaining the different behavior of students during bullying episodes. However, the research has been limited to the analysis of explicit measures of moral characteristics and moral reasoning, whereas implicit measures have yet to be fully considered. To overcome this limitation, this study investigated the association between bullying and defending, on one hand, and both explicit (moral disengagement, self-importance of moral values) and implicit (immediate affect toward moral stimuli [IAMS]) moral components, on the other hand. Young adolescents (N = 279, mean age = 11 years, 9 months, 44.4% girls) completed a series of self-report scales and individually performed a computer task investigating the IAMS. Two hierarchical regressions (bootstrapping method) were performed. Results showed that moral disengagement was associated with bullying and defending behavior at high levels of IAMS, however not when IAMS was low. In contrast, self-importance of moral values was not significantly associated to the two behaviors when IAMS was high whereas both associations were significant at low levels of IAMS. These results significantly expand previous knowledge about the role of morality in bullying and defending behavior. In particular, they highlight the role of the interaction between explicit and implicit moral dimensions in predicting bullying and defending behaviors.  相似文献   

15.
IntroductionThe measurement of personal values is still a great challenge in social psychology due to the complex nature of this concept.ObjectiveBased on Schwartz's theory of human values, this study aimed at analysing the relationship between the Values Implicit Association Test (VIAT), a relatively new indirect measure of values, and the Portrait Values Questionnaire (PVQ), a well-known direct measure of values. Also, it examined whether social desirability moderates this relationship.MethodSeventy-three participants (64.4% female; M age = 25.46, SD = 4.04) took part to the study in a standardized setting.ResultsResults showed different value priorities depending on the measure used (i.e., indirect vs direct), and although social desirability was related to participants’ responses on PVQ more than on VIAT, it did not moderate the association between direct and indirect measures for any of the examined values.ConclusionsImplications of the findings for value measurement and future developments are discussed.  相似文献   

16.
Adolescent risk-taking behavior has been associated with age-related changes in striatal activation to incentives. Previous cross-sectional studies have shown both increased and decreased striatal activation to incentives for adolescents compared to adults. The monetary incentive delay (MID) task, designed to assess functional brain activation in anticipation of reward, has been used extensively to examine striatal activation in both adult and adolescent populations. The current study used this task with a longitudinal approach across mid-adolescence and late adolescence/early adulthood. Twenty-two participants (13 male) were studied using the MID task at two time-points, once in mid-adolescence (mean age = 16.11; SD = 1.44) and a second time in late adolescence/early adulthood (mean age = 20.14; SD = .67). Results revealed greater striatal activation with increased age in high- compared to low-incentive contexts (incentive magnitude), for gain as well as for loss trials (incentive valence). Results extend cross-sectional findings and show reduced striatal engagement in adolescence compared to adulthood during preparation for action in an incentive context.  相似文献   

17.
Background/Objective: Retirement homes and other gerontology services are frequently criticized due to their lack of flexibility and tailored attention, leading to homogeneous treatment which compromises patients’ control of their lives. This study aims to develop and validate the first Spanish instrument for healthcare professionals to assess the degree of person-centered attention delivered by senior care centers. Method: A total of 844 healthcare professionals (mean age = 39.94 years old; SD = 10.56) with a mean of 6.56 years (SD = 6.15) of work experience participated in the study. The psychometric properties of the questionnaire developed were analyzed using both classical test theory and item response theory models. Results: The internal structure was unidimensional with an explained variance of 55.23%. Reliability was outstanding: internal consistency (α = .96, ω = .96) and test-retest (r = .88; ICC = .93). The total score was significantly correlated with two similar questionnaires, with associated variance of 58.83% and 55.20% respectively. Conclusions: The new instrument allows healthcare professionals to assess the level of person-centered care provided by gerontology centers with excellent reliability and validity.  相似文献   

18.
The aim of this study was to analyze the psychometric properties of the Career Adapt-Abilities Scale (CAAS) in a French-speaking Swiss sample and its relationship with personality dimensions and work engagement. The heterogeneous sample of 391 participants (Mage = 39.59, SD = 12.30) completed the CAAS-International and a short version of the Utrecht Work Engagement Scale. To assess personality dimensions, participants completed either the Zuckerman–Kuhlman–Aluja Personality Questionnaire (n = 283) or the NEO-FFI-R (n = 108). The internal consistencies for the four subscales and total scores of the CAAS ranged from good to excellent, and skewness and kurtosis values indicated that scores were normally distributed. Gender differences and correlations with age were small or negligible. Several CFA models confirmed the factor structure of the French version of the CAAS-International, with loadings very similar to the ones observed for the international form. Adaptability was related to different personality dimensions, particularly neuroticism and conscientiousness, and also to work engagement. When predicting work engagement, career adaptability had a significant incremental validity over personality dimensions. Finally, career adaptability partially moderated the relationship between personality and work engagement, suggesting that career adaptability also contributes to regulating the expression of personality dispositions.  相似文献   

19.
We investigated the time course of neuromuscular and hypertrophic adaptations associated with only four weeks of barbell squat and deadlift training. Forty-seven previously untrained women (mean ± SD, age = 21 ± 3 years) were randomly assigned to low volume training (n = 15), moderate volume training (n = 16), and control (n = 16) groups. The low and moderate volume training groups performed two and four sets, respectively, of five repetitions per exercise, twice a week. Testing was performed weekly, and included dual X-ray absorptiometry and vastus lateralis and rectus femoris B-mode ultrasonography. Bipolar surface electromyographic (EMG) signals were detected from the vastus lateralis and biceps femoris during isometric maximal voluntary contractions of the leg extensors. Significant increases in lean mass for the combined gynoid and leg regions for the low (+0.68 kg) and moderate volume (+0.47 kg) groups were demonstrated within three weeks. Small-to-moderate effect sizes were shown for leg lean mass, vastus lateralis thickness and pennation angle, and peak torque, but EMG amplitude was unaffected. These findings demonstrated rapid muscular adaptations in response to only eight sessions of back squat and deadlift training in women despite the absence of changes in agonist–antagonist EMG amplitude.  相似文献   

20.
《Behavior Therapy》2016,47(4):538-549
The purpose of the current study was to examine whether the rate and type of parent-reported homework completion is associated with parent-report of child behavior outcomes, number of sessions to master parental skills as measured by therapist observation, and length of treatment in Parent–child Interaction Therapy (PCIT). Sixty-two parent–child dyads (primary caregiver: Mage = 36.35 years, female 95.20%, 81.60% White, 59.57% Hispanic; child Mage = 4.22 years; child gender male 64.50%) who completed PCIT were included in the study. A within-subjects hierarchical regression statistical design was used to examine the impact of parent report of homework completion on treatment processes and outcomes. A higher rate of self-reported homework completion was predictive of parental mastery of skill acquisition in fewer sessions and treatment completion in fewer sessions. Parent report of homework completion rate was not related to changes in child disruptive behavior after controlling for child behavior at baseline. Current study findings reinforce the importance of having parents regularly practice PCIT skills outside of session in order to decrease treatment length and facilitate the acquisition of parenting skills, which may reduce family burdens associated with attending a weekly treatment.  相似文献   

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