首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
The purpose of this study was to examine individual differences in the activation and regulation of the hypothalamic-pituitary-adrenal (HPA) axis in prepubertal children after exposure to two different stress modalities and to evaluate the utility of an individual differences approach to the examination of HPA axis functioning. After a 30-min controlled baseline period, 73 7-year-olds (40 boys and 33 girls) were randomly assigned to a validity check condition or one of two experimental tasks designed to elicit fear or frustration. This was followed by a 60-min controlled regulation phase. A total of 17 saliva samples were collected, including 12 poststress samples at 5-min intervals. There was a significant stress modality effect, with children exposed to the fear condition reaching peak cortisol levels at 25 min poststress and those exposed to the frustration condition reaching peak levels at 45 min poststress. There was no difference in peak cortisol levels between the stress modalities. Individual variability across conditions was significant, with participants reaching peak levels as early as 10 min poststress and as late as 60 min poststress. Our data suggest that analysis of individual curves prior to making group-level comparisons may improve the explanatory power of HPA axis behavior models.  相似文献   

2.
父母消极抚养方式与父母冲突和青少年社会适应的关系   总被引:1,自引:0,他引:1  
以720名小学、初中和高中生为被试,采用问卷法,探讨父母消极抚养方式与父母冲突和青少年社会适应的关系,并检验父母消极抚养方式在父母冲突与青少年适应间的中介作用。结果发现:(1)与孩子有关的父母冲突显著多于与父母自身有关的冲突,初中生报告的两种冲突显著多于小学生;母亲消极抚养显著多于父亲,父母对男生的消极抚养显著多于女生,父母对初中生的消极抚养显著多于小学生;青少年的抑郁、学习问题较多,在抑郁、不良行为上存在显著的性别主效应,女生抑郁多于男生,男生的不良行为多于女生。在抑郁、学习问题和不良行为上存在显著年级主效应,初、高中生的抑郁、学习问题和不良行为显著多于小学生;(2)与孩子或父母有关的冲突越多,父母消极抚养越多;(3)父母消极抚养越多,青少年抑郁、不良行为、学习问题越多;(4)父母消极抚养在父母冲突与青少年社会适应中起部分中介作用。  相似文献   

3.
It is widely recognized that different events may take place in the intrauterine environment that may influence later developmental outcome. Scholars have long postulated that maternal prenatal stress, alcohol or drug use, and cigarette smoking may impact foetal formation of the hypothalamus–pituitary–adrenal (HPA) axis, which may later influence different aspects of early childhood socioemotional and cognitive development. However, results linking each of these factors with child cortisol secretion have been mixed. The current meta-analysis examined the relation between each of these programming variables and child cortisol secretion in studies conducted up to December 31st, 2012. Studies were included if they were conducted prior to child age 60 months, and if they reported an index of effect size linking either maternal prenatal stress, alcohol or drug use, or cigarette smoking with an index of child cortisol secretion. In total, 19 studies (N = 2260) revealed an average effect size of d = .36 (p < .001). Moderator analyses revealed that greater effect sizes could be traced to maternal alcohol use, to the use of retrospective research methodology, where mothers are questioned after childbirth regarding programming variables, and to the use of baseline measures of cortisol secretion, as opposed to recovery measures. Discussion focuses on processes that link the environment to foetal development and how both are linked to later adaptation.  相似文献   

4.
This study investigated the extent to which trait anxiety and state anxiety in response to stress are associated with the cortisol awakening response (CAR).Fifty-one healthy participants were recruited. State anxiety measures were taken in anticipation of and during a laboratory stressor. Salivary cortisol levels were measured immediately upon awakening (at 0, 15, 30, and 45 min) on two consecutive mornings. Cortisol awakening response was assessed by the area under the curve with respect to zero (AUCG).The magnitude of the CAR was found to be negatively associated with both trait anxiety and anticipatory anxiety. Moreover, regression analysis showed that the effects of trait anxiety on the AUCG were mediated by anticipatory anxiety.These results suggest that the CAR is influenced by trait anxiety. Moreover, the effect of trait anxiety on the CAR seems to operate by impacting on psychological stress reactivity (i.e., anticipatory anxiety).  相似文献   

5.
The purpose of the present study was to investigate basic methodological issues related to the usage of an examination stress protocol in studies of psychoneuroendocrinology. In the present study, 57 undergraduate students served as participants. All subjects provided salivary samples and completed psychological inventories during a low examination stress period and again during a high examination stress period. Salivary samples were analyzed for cortisol. Three major findings were observed. First, the examination stress protocol proved to be an effective trigger of elevations in both psychological measures of stress and in cortisol levels. Second, sex differences were observed in cortisol levels, such that males showed an elevation in cortisol during the high examination stress session whereas females did not. Finally, no significant correlations were observed between elevations in psychological measures of stress and elevations in cortisol levels. These findings suggest that the examination stress protocol used in the present study effectively elevated both psychological stress and cortisol levels. Furthermore, these findings suggest that there are biological differences in how males and females respond to stress. Finally, no evidence was found to suggest a relationship between psychological and hormonal levels of stress. Together, these findings suggest the need to better define and consider the implications of both the specific measures of stress being used and individual differences in the subject samples in psychoendocrine studies.  相似文献   

6.
Parental unresolved/disorganized responses to loss assessed in the Adult Attachment Interview predict infant disorganized (D) attachment. Parental experiences of loss near the birth of an infant should therefore increase the likelihood of D attachment to that parent. Liotti (1992) suggested that D attachment may increase tendencies to altered states of consciousness, and some support for this hypothesis has been obtained in clinical and high-risk samples. Here, Tellegen's Absorption Scale was used to measure propensities to altered consciousness in two low-risk samples of young adults (N=136, N=308). In both studies, participants whose parents experienced familial loss within two years of their birth showed elevated levels of absorption. These outcomes (a) support the proposed connection between disorganized attachment and tendencies to altered consciousness, and (b) suggest that queries regarding parental loss experiences should be further explored as a ‘rough and ready’ estimate of disorganized attachment in large-scale studies.  相似文献   

7.
The study cross-nationally examined to what degree parental psychological abuse (rejection, isolation, and emotional neglect) would be associated with control of adolescents' personal domain as opposed to prudential-conventional domain. Participants (ages 14–18) included 170 Americans, 125 Japanese from Akita Prefecture, and 320 from Tokyo. With all samples, abuse was linked to overcontrol. However, the link was domain specific, pertaining only to the personal domain (e.g., hairstyle) and not prudential (e.g., use of alcohol) or conventional (e.g., table manners) domains. Psychological abuse also predicted adolescents' desire of parental authority in different domains among cultures. U.S. adolescents, linked to abuse, desired more freedom within the overlap issues, whereas Akita adolescents desired greater parental authority for the personal. Tokyo adolescents' autonomous expression was in the middle between the U.S. and Akita samples. This study suggests control of the personal is a component of psychological abuse. Cultural effect on autonomous expression linked to abuse is discussed.  相似文献   

8.
9.
青少年的自主期望、对父母权威的态度与亲子冲突和亲合   总被引:7,自引:0,他引:7  
通过对704名城乡高一和高三年青少年的问卷调查,探讨了高中阶段青少年-父母关系、青少年的行为自主期望和对父母权威的态度的特点,以及青少年—父母关系与青少年的行为自主期望和对父母权威的态度之间的关系。结果显示,我国城乡青少年对父母权威的认同程度较高,而期望获得行为自主的年龄较晚;青少年的行为自主期望、对父母权威的态度与青少年—父母冲突与亲合在某些方面存在城乡、性别和年级差异;青少年对父母权威的认同程度越高,对与父母发生分歧的接受性越高,其与父母的关系越亲密;那些期望在较晚年龄获得行为自主的青少年,与父亲的冲突较多,但与母亲较亲密  相似文献   

10.
Stress can have enhancing or impairing effects on memory. Here, we addressed the effect of pre-learning stress on subsequent memory and asked whether neutral and emotionally valent information are differentially affected by specific stress components, autonomic arousal and stress-induced cortisol. Ninety-six healthy men and women underwent either a stressor (modified cold pressor test) or a control warm water exposure. During stress, participants showed comparable autonomic arousal (heart rate, blood pressure), while 60 percent showed an increase of cortisol (responders vs. 40 percent non-responders). Ten minutes after the cold pressor test neutral, positive and negative words were presented. Free recall was tested 1 and 24 h later. Overall, positive and negative words were better recalled than neutral words. Stress enhanced the recall of neutral words independently of cortisol response. In contrast, the free recall of negative words was enhanced in cortisol responders in the 1-h but not 24-h test which might suggest different effects of cortisol on consolidation and reconsolidation processes. Recall for positive words was unaffected by stress-induced cortisol. To summarize, (i) pre-learning stress can enhance memory for neutral words independently of cortisol and (ii) stress effects on memory for negative words appear to rely on stress-induced cortisol elevations, the absence of this effect for positive words might be at least partly due to differences in arousal evoked by positive vs. negative words.  相似文献   

11.
ABSTRACT

This paper documents preliminary examination of the factor structure and psychometric properties of the Parental Attitudes and Behaviors Scale (PABS), an OCD-specific measure of parental attitudes, beliefs, and behavioral strategies related to childhood OCD. Employing a sample of 123 youth (mean age = 11.7; 59% male, 79% Caucasian) diagnosed with OCD in an outpatient child anxiety clinic, we used exploratory factor analysis to produce a 3-factor solution representing the following domains of parental responses to childhood OCD: accommodation, empowerment, and hostility/blame. These scales demonstrated adequate internal consistency and concurrent validity, providing preliminary evidence for the psychometric integrity of the PABS.  相似文献   

12.
The purpose of this study was to assess the association between maternal interactive behavior and infant cortisol stress reactivity in response to the Still Face paradigm (SF) in a cohort of four-month old infants (adjusted age) born preterm (<32 weeks gestation, N = 22) compared with infants born full term (>37 weeks gestation, N = 28). Infant cortisol reactivity was calculated as area under the curve (AUC) from baseline to the third cortisol sample (30 min post-SF) using the trapezoidal rule, while the percent of time mothers spent using a contingent interaction style was measured (0–100%) during episodes 1 (Play; baseline), 3 (Reunion#1), and 5 (Reunion#2) while mother-infant dyads participated in the SF paradigm. We hypothesized that because infants born preterm are at increased risk for dysregulation, they would show, compared to full-term infants, a blunted stress response, involving under-responsiveness. We found blunted cortisol stress reactivity among the preterm infants. We also found that mothers of preterm infants demonstrated less contingent maternal interaction during Renion#1 of the SF; and that contingent maternal interaction at Reunion#2 of the SF was protective against cortisol stress reactivity in response to the SF. However, we did not find that the influence of maternal interaction on cortisol reactivity was moderated by gestational age group (full term vs preterm): the association between contingent maternal interaction and stress reactivity was similar for both gestational groups across episodes. In order to improve self-regulation and longer term social and cognitive developmental outcomes in medically at-risk infants, future research is warranted to determine how these findings relate to infants’ stress reactions in naturalistic settings, and the directionality and temporal relationship between cortisol stress responses and maternal interactive behavior.  相似文献   

13.
This paper examined the relationship of constructs identified by identity continuity and attachment theories of grief to adjustment to loss from the framework of identity theory. Connections between loss salience, identity construal, and balance of identity construal on grief intensity via their association with post-loss identity disruption were examined across three types of self-relevant losses; death of a family member, job loss, or divorce. We hypothesized that lower salience, higher endorsement of identity attributes represented by relational and individualistic self-construals, and an overall balance across identity attributes would be related to decreased grief severity across all types of loss. Results supported hypotheses with the exception that the hypothesized ameliorative effect of increases in relational self-construal was only seen in the bereaved group.  相似文献   

14.
Watson PJ  Shalev AY 《CNS spectrums》2005,10(2):123-131
Assessment and treatment of acute responses to traumatic stress has received much attention since September 11, 2001. This article elucidates principles of early intervention with adults in the immediate (within 48 hours) and early recovery phase (within the first week). The principles have been drawn from research on risk and recover factors, stress and traumatic stress theory, and expert consensus recommendations. The debriefing model is discussed, and principle interventions of psychological first aid, pharmacology, and mass trauma systems are described. This article concludes with brief guidelines for longer-term interventions and recommendations for future research.  相似文献   

15.
This study examined (1). predictors for peritraumatic dissociation, (2). its relations with acute and chronic symptoms of posttraumatic stress disorder (PTSD), and (3). pathways regarding these relations in response to pregnancy loss. In early pregnancy, about 1370 women volunteers completed questionnaires for neuroticism, control over emotions, dissociative tendencies, absorption, and prior life events. Of these, 126 subsequently experienced pregnancy loss and most of them completed measures 1 month (N = 118) and 4 months (N = 104) later. At 1 month, peritraumatic dissociation, memory of pregnancy loss (degree of fragmentation, sensory impressions, and emotional intensity), thought suppression, and PTSD symptoms were assessed, and at 4 months, PTSD symptoms were re-assessed. Peritraumatic dissociation was predicted by prior low control over emotions, dissociative tendencies, and lower education. It was not predicted by neuroticism, absorption, and prior life events. Peritraumatic dissociation was related to acute PTSD symptoms and LISREL analyses indicated that self-reported memory fragmentation and thought suppression of pregnancy loss mediated this relation. It also predicted chronic PTSD symptoms, and this relation was mediated by acute PTSD symptoms.  相似文献   

16.
Two previous studies found that life stress and parental alcoholism were not as highly related to distress for Hispanic adolescents as they were for European American adolescents (M. Barrera Jr., S. A. Li, and L. Chassin, 1993, 1995). Those findings could be interpreted as evidence of Hispanic youths' resilience, but limitations of the stress measure and the homogeneity of the Hispanic sample threatened this interpretation. The present study improved on those previous studies by using a new measure of uncontrollable stressors and a more heterogeneous Mexican American sample. Participants in this study were 175 Mexican American and 59 European American adolescents and their parents. Unlike the previous studies, results did not show that Mexican American adolescents were more resilient to parental problem drinking or life stress than were European American adolescents. Overall, life stress was related to adolescents', mothers', and fathers' reports of adolescents' psychological distress above and beyond the effects of ethnicity and socioeconomic factors.  相似文献   

17.
The Adult Attitude to Grief (AAG) scale was devised for an earlier study (Machin, 2001) to test the validity of a concept of loss, which proposed that grief reactions fall broadly into three categories — ‘overwhelmed’, ‘balanced’ and ‘controlled’. There was statistical support for the proposed differences but the AAG scale, more importantly, provided insight into the diverse reactions taking place in individual bereaved respondents. This paper describes a second study undertaken to examine the clinical usefulness of the AAG scale with clients receiving help within the Psychological Services Operating Unit of the North Staffordshire Combined Healthcare (NHS) Trust. The scale has been used both in its original form with bereaved clients and in a modified form with clients having distress symptoms associated with other losses, such as relationship breakdown or the onset of chronic illness. The use of the AAG scale in this clinical setting suggests that, both as an assessment tool and as a cue for therapeutic dialogue, it provides a promising way of mapping the general and particular characteristics of response to loss in individual clients. Consideration is also given to varying therapeutic approaches needed to help clients regain the equilibrium disturbed by their grief.  相似文献   

18.
为考察父母忽视对青少年自杀意念的影响及其作用机制,采用父母忽视量表、自尊量表、希望量表和自杀意念量表,对全国七个省份八所中学共845名初二学生进行调查。结果表明:(1)父母忽视、自尊、希望和自杀意念两两之间存在显著的相关,且父母忽视对自杀意念具有显著的正向预测作用;(2)自尊和希望在父母忽视与自杀意念的关系中起部分中介作用。具体而言,父母忽视通过三条路径影响自杀意念:一是自尊的单独中介作用;二是希望的单独中介作用;三是自尊-希望的链式中介作用。本研究揭示了父母忽视与青少年自杀意念的关系及其作用机制,对预防以及减少青少年自杀行为具有一定的现实意义。  相似文献   

19.
Instances of sustained cooperative behaviour in humans can be considered as an adaptive strategy that enhances the probability of reaching a goal. This study investigates psychophysiological responses to cooperation in healthy subjects, while considering outcome and gender as potential moderators of these responses. Salivary cortisol levels (Csal), heart rate (HR), skin conductance level (SCL), nonspecific skin conductance responses (NSRs), and mood states were measured at different points before, during and after a Lego house‐building task in undergraduate men (n = 22) and women (n = 20). Once the task was finished, the experimenter informed the participants about the outcome obtained (positive or negative). Cooperation produces an increase in HR, SCL, and NSR responses. When the outcome is positive it produces a gradual diminution in Csal levels, but when the outcome is negative there is a significant increase in Csal levels after the task followed by a progressive decrease. Men with positive outcomes showed a lower area under curve (AUC) in Csal than women with a negative outcome. Men had more NSR responses in all periods other than the rest period. Several mood states are differently affected by the combined effect of outcome and gender. Our laboratory results can be generalized to other situations in which negotiation, mediation, and cooperative strategies are relevant for taking decisions and/or solving problems.  相似文献   

20.
We examined 5-month-olds’ responses to adult facial versus vocal displays of happy and sad expressions during face-to-face social interactions in three experiments. Infants interacted with adults in either happy-sad-happy or happy-happy-happy sequences. Across experiments, either facial expressions were present while presence/absence of vocal expressions was manipulated or visual access to facial expressions was blocked but vocal expressions were present throughout. Both visual attention and infant affect were recorded. Although infants looked more when vocal expressions were present, they smiled significantly more to happy than to sad facial expressions regardless of presence or absence of the voice. In contrast, infants showed no evidence of differential responding to voices when faces were obscured; their smiling and visual attention simply declined over time. These results extend findings from non-social contexts to social interactions and also indicate that infants may require facial expressions to be present to discriminate among adult vocal expressions of affect.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号