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1.
Estimating time to contact (TTC) involves multiple sensory systems, including vision and audition. Previous findings suggested that the ratio of an object’s instantaneous optical size/sound intensity to its instantaneous rate of change in optical size/sound intensity (τ) drives TTC judgments. Other evidence has shown that heuristic-based cues are used, including final optical size or final sound pressure level. Most previous studies have used decontextualized and unfamiliar stimuli (e.g., geometric shapes on a blank background). Here we evaluated TTC estimates by using a traffic scene with an approaching vehicle to evaluate the weights of visual and auditory TTC cues under more realistic conditions. Younger (18–39 years) and older (65+ years) participants made TTC estimates in three sensory conditions: visual-only, auditory-only, and audio–visual. Stimuli were presented within an immersive virtual-reality environment, and cue weights were calculated for both visual cues (e.g., visual τ, final optical size) and auditory cues (e.g., auditory τ, final sound pressure level). The results demonstrated the use of visual τ as well as heuristic cues in the visual-only condition. TTC estimates in the auditory-only condition, however, were primarily based on an auditory heuristic cue (final sound pressure level), rather than on auditory τ. In the audio–visual condition, the visual cues dominated overall, with the highest weight being assigned to visual τ by younger adults, and a more equal weighting of visual τ and heuristic cues in older adults. Overall, better characterizing the effects of combined sensory inputs, stimulus characteristics, and age on the cues used to estimate TTC will provide important insights into how these factors may affect everyday behavior.  相似文献   

2.
Reactions to sensory experiences are an overlooked correlate of affective regulation, despite the importance of bodily states on psychological processes. Children who display sensory over-responsivity (i.e., adverse reactions to typical sensations) are at greater risk for developing affective disorders. We extended this literature to adolescents and their middle-aged parents. Participants in a birth record-based study of families of adolescent twins (N = 506 families; 1012 adolescents; 53% female) completed a subset of items from the Adult Sensory Profile. We derived adolescent self-reported internalizing disorder symptoms and parent affective diagnoses from structured diagnostic interviews. Structural equation models tested the relationship between parent sensory over-responsivity symptoms and affective diagnoses and their adolescent offspring’s sensory over-responsivity and internalizing symptoms. Adolescent sensory over-responsivity symptoms were correlated with internalizing disorder symptoms. Parents with a diagnosis of anxiety or depression (mothers only) reported more frequent SOR symptoms than parents without a diagnosis. Parent depression was significantly related to adolescent sensory over-responsivity symptoms, over and above parent sensory over-responsivity symptoms (β = 0.26, p < 0.001 for mothers; β = 0.13, p = 0.004 for fathers). Father alcohol abuse/dependency also predicted offspring sensory over-responsivity symptoms. Offspring of parents with affective disorders were at additional risk for sensory dysregulation via parents’ influence on offspring internalizing problems.  相似文献   

3.
Which NP does all associate with in e.g. “The pandas, the children all saw”—the pandas, the children, or both? The intuition of adult Mandarin Chinese native speakers regarding the interpretation of the adverbial quantifier dou ‘all’ remains unclear and controversial, and various incommensurate theories of domain selection have been proposed. These studies may have failed to yield clear results because they used testing materials in which the interpretation of dou is confounded with other principles of NP interpretation (e.g. zhexie xiaohai ‘these children’ is truth-functionally synonymous with ‘all these children’). To address these concerns, we present the first set of experimental studies on adult knowledge and use of syntactic constraints on the quantifier domain of dou. The results support the hypothesis that dou can take one and only one c-commanding NP as its domain, but falsify interesting theoretical accounts that assume a strict locality constraint on dou quantification.  相似文献   

4.
Personality factors, such as neuroticism, are important for understanding motives for cannabis use; however, few studies have examined the role of neuroticism in the context of other personality factors, or possible mechanisms accounting for an association between neuroticism and motives for use. The present study examined concurrent associations between personality traits (i.e., conscientiousness, extraversion, agreeableness, and neuroticism) and cannabis use motives, and the role of anxiety sensitivity (AS) in the association between neuroticism and coping cannabis use motives. Seventy young adults endorsing past-month cannabis use (58.6 % female, M age = 20.91) completed self-report measures. Linear regressions were conducted to examine the concurrent associations between personality factors and cannabis use motives. Higher levels of neuroticism, but no other personality traits, were significantly associated with greater coping (β = 45, p < .01) and expansion (β = 0.29, p = <.05) motives. Bootstrap analysis (10,000 re-samples) revealed that a significant portion of the relationship between neuroticism and coping motives was explained by AS (point estimate = 0.029, PB 95 % CI: 0.0089 to 0.0615). Greater neuroticism may result in heightened sensitivity to arousal, which may then increase motivation to use cannabis to alleviate such arousal.  相似文献   

5.
Recent etiopathogenic theories of gastrointestinal conditions state that information processing biases can be a possible major factor involved in the aetiology and maintenance of these conditions. This exploratory study investigated the role of attention biases (AB) towards symptoms-related cues in gastrointestinal patients with respect to symptom maintenance, simultaneously taking into consideration the role of irrational beliefs. We included 32 patients diagnosed with gastrointestinal conditions. Patients completed a battery of psychological tests and an experimental task aimed to measure the preferential attention processing of linguistic stimuli related to gastrointestinal symptoms when they compete for attention resources with neutral stimuli. AB was positively related to irrational beliefs [r(31) = .376, p = .037] and analgesics use [r(32) = .518, p = .002], but not to self-report gastrointestinal symptoms [r(30) = ?.165, p = .382]. Irrational beliefs correlated with pain catastrophizing [r(31) = .373, p = .039], but not to gastrointestinal symptoms, pain intensity, visceral sensitivity or negative emotions; however, pain catastrophizing correlated with all of these. Taken together, our results suggest that core irrational beliefs action as general vulnerability factors that trigger specific implicit and explicit cognitive mechanisms (i.e., AB, pain catastrophizing) involved in the onset and maintenance of symptoms. Future experimental studies should test the robustness of these results in larger samples and aim to further advance our understanding of how cognitive factors interact and potentiate each other in generating and maintaining debilitating suffering.  相似文献   

6.
Research has shown that answers on self-report measures can be influenced by a participant’s awareness of information regarding the study (“reactivity”). There exists a gap in the literature regarding weight cue reactivity on self-report measures of body dissatisfaction (BD). This type of reactivity involves exposing participants to information regarding their height, weight, or body mass index (BMI). Ninety-Nine participants (45.5 % female, mean age = 20.17, SD = 3.08) were randomly assigned to one of three conditions: proximal weight cue (being weighed before completing measures); distal weight cue (knowledge of impending measurement following questionnaire completion); and no weight cues (control), all before measures of BD. Perceived body size and BD were measured using the Stunkard Figure Rating Scale. Two separate ANCOVAs revealed a significant main effect for condition on self-reported perceived body size F [2,92] = 5.22, p = 0.01, η2 = 0.10, as well as on BD, F [2,92] = 9.46, p < 0.001, η2 = 0.17, while controlling for BMI. Both proximal and distal cues elicited elevated BD; only proximal cues elicited self-reported perceived body size. These results quantify the impact of weight cue reactivity effects on self-report measures and suggest that researchers and/or clinicians collect answers on such measures prior to anthropometric data.  相似文献   

7.
The purpose of the present study was to examine whether rhesus monkeys remember information about their own agency—along with spatial, temporal and contextual properties—from a previously experienced event. In Experiment 1, rhesus monkeys (n = 4) used symbols to reliably indicate whether they had performed or observed an event on a computer screen. In Experiment 2, naïve and experienced monkeys (n = 8) reported agency information when stringent controls for perceptual and proprioceptive cues were included. In Experiment 3, five of the monkeys completed a task in which they reported agency information along with spatial and temporal features of events. Two monkeys performed this agency discrimination when they could not anticipate which memory test they would receive. There was also evidence that these features were integrated in memory. Implications of this research are discussed in relation to working memory, episodic memory and self-awareness in nonhuman animals.  相似文献   

8.
9.
The main objectives of the present study were (1) to examine the between- and within-person association of physical (in)activity and satisfaction with life (SWL), and (2) to identify relevant top-down and bottom-up influences associated with daily well-being in menopausal women using a daily process approach. As part of a 21-day diary study, community-dwelling middle-aged women (N = 103; age range 40–60 years) wore an accelerometer for the objective assessment of physical activity and completed daily Internet surveys at the end of their day. Multilevel analyses indicated the between-person effects of physical activity on SWL were negligent but that on days when a woman was more physically active than her usual, she reported greater SWL (B = 12.01, p < .05). Sedentary behavior did not demonstrate a between- or within-person association with SWL. Women also experienced reduced SWL on days when greater symptom burden was reported (B = ?2.47, p < .05). Neuroticism also emerged as a top-down personality trait with a negative relation to SWL (B = ?1.47, p < .05). Higher levels of neuroticism predicted reduced daily life satisfaction particularly on days characterized by heightened symptom burden (B = ?0.26, p < .05). In this sample of midlife women, daily physical activity had a positive influence on SWL, whereas daily symptom burden and the personality trait of neuroticism had detrimental consequences on a woman’s daily well-being.  相似文献   

10.
The purpose of the multi-measure, multi-wave, longitudinal study was to examine the interactive relation between behavioral distress tolerance (DT) and perceived social support (PSS) in 352 tornado-exposed adolescents aged 12–17 years (M = 14.44; SD = 1.74). At baseline, adolescents completed a computer-based task for DT, and self-report measures of PSS, depressed mood, posttraumatic stress disorder (PTSD), substance use, and interpersonal conflict. Symptoms also were assessed 4 and 12 months after baseline. Findings showed that lower levels of DT together with lower levels of PSS conferred risk for elevated symptoms of prospective depression (t(262) = ?2.04, p = .04; reffect size = 0.13) and PTSD (t(195) = ?2.08, p = .04; reffect size = 0.15) following a tornado. However, only PSS was significant in substance use t(139) = 2.20, p = .03; reffect size=0.18) and conflict (t(138) = ?4.05, p < .0001; reffect size=0.33) in our sample. Implications regarding adolescent DT, the transdiagnostic nature of PSS, and the clinical applications of our findings in the aftermath of a natural disaster are discussed.  相似文献   

11.
Anxiety is conceptualized as a state of negative emotional arousal that is accompanied by concern about future threat. The purpose of this meta-analytic review was to evaluate the evidence of associations between emotional competence and anxiety by examining how specific emotional competence domains (emotion recognition, emotion expression, emotion awareness, emotion understanding, acceptance of emotion, emotional self-efficacy, sympathetic/empathic responses to others’ emotions, recognition of how emotion communication and self-presentation affect relationships, and emotion regulatory processes) relate to anxiety in childhood and adolescence. A total of 185 studies were included in a series of meta-analyses (N’s ranged from 573 to 25,711). Results showed that anxious youth are less effective at expressing (r = ?0.15) and understanding emotions (r = ?0.20), less aware of (r = ?0.28) and less accepting of their own emotions (r = ?0.49), and report less emotional self-efficacy (r = ?0.36). More anxious children use more support-seeking coping strategies (r = 0.07) and are more likely to use less adaptive coping strategies including avoidant coping (r = 0.18), externalizing (r = 0.18), and maladaptive cognitive coping (r = 0.34). Emotion acceptance and awareness, emotional self-efficacy, and maladaptive cognitive coping yielded the largest effect sizes. Some effects varied with children’s age. The findings inform intervention and treatment programs of anxiety in youth and identify several areas for future research.  相似文献   

12.
Callous-unemotional (CU) traits are one meaningful risk factor which helps to explain heterogeneity in the emergence of externalizing behavior problems. While the extant literature demonstrates links between early CU traits and later externalizing problems, there is a dearth of research examining for whom early CU traits confer risk. Data from a longitudinal study (n?= 108) were used to examine the extent to which parasympathetic functioning moderated links between CU traits in toddlerhood (m age ?=?24.99 months) and externalizing behavior problems at preschool-age (m age ?=?51 months). Neither CU traits nor parasympathetic functioning at age 2 directly predicted later externalizing behaviors. However, results show that high levels of CU traits predict elevated externalizing behavior problems, but only for toddlers exhibiting either high baseline respiratory sinus arrhythmia (RSA) or little to no RSA suppression in response to a fear stimulus.  相似文献   

13.
Little is known about early life diet as a risk factor for early-onset persistent conduct problems (EOP CP). To investigate this, we used data from the Avon Longitudinal Study of Parents and Children, a UK-based prospective epidemiological birth cohort. 5727 mother-child pairs (49.9 % boys) monitored since pregnancy (delivery date between 1 April, 1991 and 31 December, 1992) reported intake of fish and processed foods at 32 weeks gestation and, for the child, at 3 years; EOP (n = 666) and Low conduct problem (Low CP, n = 5061) trajectories were measured from 4 to 13 years; hyperactivity and emotional difficulties were assessed in childhood (4–10 years) and early adolescence (12–13 years), in addition to potential confounding factors (family adversity, birth complications, income). Compared to Low CP, mothers of EOP children consumed less fish (p < 0.01) and more processed food (p < 0.05) prenatally, while EOP children consumed more processed food at 3 years (p < 0.05). For EOP, but not Low CP children, consuming less than two servings/week of fish (vs. two or more servings/week, p < 0.05), and one or more servings/day of processed food (vs. less than one serving/day, p < 0.01), was associated with higher emotional difficulties in early adolescence. Conclusions: Findings suggest that prenatal and postnatal diets high in processed food, and low in fish, associate with an EOP CP trajectory and co-occurring difficulties in early adolescence. As small effect size differences were found, further studies are needed to investigate the long-term impact of early unhealthy diet.  相似文献   

14.
Given the significant modifications to posttraumatic stress disorder (PTSD) symptom criteria from DSM-IV to DSM-5, a better understanding of the dimensionality underlying DSM-5 PTSD symptoms among adolescents is needed. However, to date, whether gender moderates the latent structure of DSM-5 PTSD symptoms in youth remains unclear. Meanwhile, little is known about how distinct PTSD dimensions relate to adolescent behavioral problems. The aim of this study was to fill these gaps. A sample of 1184 disaster-exposed Chinese adolescents (53.8 % girls) with age ranging from 13 to 17 years (M = 14.3, SD = 0.8) completed the PTSD Checklist for DSM-5, and the Withdrawn, Aggressive Behavior, and Delinquent Behavior subscales of the Youth Self-Report. Confirmatory factor analyses revealed that the seven-factor hybrid PTSD model provided the best fit to the data for both girls and boys. Measurement equivalence of this model held across gender, although girls had higher mean scores than boys on some factors. Differential patterns of associations emerged between PTSD dimensions and behavioral problems, with anhedonia symptoms most strongly relating to social withdrawal, and externalizing behavior symptoms most strongly relating to aggression and delinquency. These findings further support the gender invariance and external criterion validity of the newly refined hybrid model that best represents DSM-5 PTSD symptom structure in youth, and carry implications for accurate assessment, diagnosis, and gender comparison of DSM-5 PTSD symptomatology, and potential symptom targets for PTSD intervention among adolescent disaster survivors.  相似文献   

15.
Scientific advances have allowed the development of multiplex gene-panels to assess many genes simultaneously in women who have tested negative for BRCA1/2. We examined correlates of interest in testing for genes that confer modest and moderate breast cancer risk and risk communication preferences for women from BRCA negative families. Female first-degree relatives of breast cancer patients who tested negative for BRCA1/2 mutations (N = 149) completed a survey assessing multiplex genetic testing interest and risk communication preferences. Interest in testing was high (70 %) and even higher if results could guide risk-reducing behavior changes such as taking medications (79 %). Participants preferred to receive genomic risk communications from a variety of sources including: primary care physicians (83 %), genetic counselors (78 %), printed materials (71 %) and the web (60 %). Factors that were independently associated with testing interest were: perceived lifetime risk of developing cancer (odds ratio (OR) = 1.67: 95 % confidence interval (CI) 1.06–2.65) and high cancer worry (OR = 3.12: CI 1.28–7.60). Findings suggest that women from BRCA1/2 negative families are a unique population and may be primed for behavior change. Findings also provide guidance for clinicians who can help develop genomic risk communications, promote informed decision making and customize behavioral interventions.  相似文献   

16.
To describe factors associated with preimplantation genetic diagnosis (PGD) decisions among Jewish Israeli BRCA1/2 carriers or spouses of a male carrier, we contacted all women who initiated PGD consultation for embryonic BRCA1/2 mutation detection at Sheba Medical Center, prior to March 2014. Applying a qualitative approach, we asked women to elaborate on the factors they considered in either opting for PGD or discontinuing the screening procedure. Participants were 18 Jewish Israeli women; 14 were carriers of one of the Ashkenazi founder mutations in BRCA1/2, and four were spouses of male mutation carriers, who underwent at least one cycle of PGD. Prior to seeking PGD, ten of the women had no children. At the time of the interview, all but three had at least one child. Three factors emerged as key motivators for PGD: having witnessed the disease in a close relative (n = 12); prior IVF treatment for infertility (n = 12); and having pre-existing frozen embryos (n = 6). Ten women withdrew from the PGD process due to clinical, logistical, and financial reasons. In conclusion, most women decided to withdraw from PGD instead of continuing until a successful conception was achieved. Those who opted for PGD attributed their discontinuation of further screening to the emotional burden that is greatly intensified by practical difficulties.  相似文献   

17.
Since its introduction four years ago, noninvasive prenatal screening for fetal aneuploidy (NIPS) has been widely adopted as a screening tool for women at a high risk for fetal aneuploidy. As use expands into the general population, questions arise concerning the integration of NIPS into preexisting screening paradigms. This study aims to examine the use of NIPS in current practice among prenatal counselors, predominantly in the United States, in order to inform strategies for the optimal use of both new and existing screening techniques. We electronically surveyed 208 members of the National Society of Genetic Counselors to ascertain how NIPS is currently being used. Genetic counselors were also queried as to the advantages and disadvantages of offering NIPS to all patients regardless of a priori risk. Results indicate substantial variation in practice regarding which patients are offered NIPS and how counselors have incorporated this technology into existing screening routines. The majority of participants report offering NIPS in conjunction with another method of screening for fetal aneuploidy, indicating that NIPS is being used as an addition rather than as a replacement. These screening methods primarily include nuchal translucency (NT) (45.1 %, n = 78) and first trimester serum screening, with or without an NT (19.7 %, n = 34). Furthermore, the majority report that they would be concerned about losing the clinical value of an NT in a complete transition to NIPS (85.4 %, n = 164). Counselors are evenly split on the merits of expanding the use of NIPS to the general population (con: 55.3 %, n = 105; pro: 44.7 %, n = 85). The lack of consensus suggests that updated practice guidelines might benefit counselors. In addition, respondents emphasized the need to better educate patients and providers about the risks, benefits, and limitations of the test.  相似文献   

18.
College students face consistent cognitive demands and often get insufficient and/or irregular sleep. The current study investigated associations of sleep duration and sleep variability with attentional performance. Sleep duration variability was expected to moderate the association between duration and cognitive functioning. College students’ (n = 83) natural sleep patterns were recorded via wristband actigraphy across three consecutive nights during an academic term. The association between sleep duration and attentional capture was strongest for those whose sleep was the most consistent across the three nights preceding the attentional task (i.e., low sleep duration variability). For those with low sleep duration variability, less sleep was associated (B = ?0.25) with reduced ability to ignore irrelevant cues and redirect attention to target locations. In other words, consistently low sleep duration was associated with compromises in attention. Our results indicate the importance of consistent sleep routines as well as sufficient sleep duration in order to optimize attentional performance in college students.  相似文献   

19.
We aimed to investigate the relationship of religious beliefs and forgiveness in diabetic patients with various sociodemographic characteristics, emotional problems and glycaemic control. The study comprises 100 patients diagnosed with type 2 DM. We used a data collection form, the Scale of Forgiveness and Religiosity (SFR), Problem Areas in Diabetes Scale (PAID), Beck Depression Inventory (BDI), State-Trait Anxiety Inventory (STAI) and the Audit of Diabetes-Dependent Quality of Life (ADDQoL). We also recorded blood glucose and HbA1c test results. A statistically significant relationship was determined only between the scores of the STAI-I and the religious belief scales (r = 0.198, p = 0.049). A statistically significant negative relationship was determined between the forgiveness scale points and the BDI (r = 0.326, p = 0.001), the STAI-II (r = 0.308, p = 0.002) and PAID (r = 0.313, p = 0.001) and a positive correlation with ADDQoL (r = 0.284, p = 0.004). To conclude, forgiveness by patient himself or others reduced the emotional problems which were experienced related to diabetes by reducing stress levels and could increase quality of life.  相似文献   

20.
Humans have the capacity to use stimuli interchangeably by forming equivalence classes, and this ability seems to be supported by our language system. According to Sidman and Tailby (Conditional discrimination vs. matching to sample: an expansion of the testing paradigm. J Exp Anal Behav 37:5–22, 1982), the formation of equivalence classes require that three relations are derived among the class members, and past experiments have shown that one of these relations, i.e., symmetry, corresponding to the ability to reverse a relation (if A → B, then B → A), is extremely difficult to obtain in non-human animals. Because language development and the ability to form equivalence classes both co-occur in children with an increased ability to form categories, the current study tested the idea that category learning might promote symmetry in a nonhuman primate species. In Experiment 1, twelve Guinea baboons (Papio papio) were trained to associate 60 pictures of bears and 60 pictures of cars to two category labels, before being tested in symmetry trials. In Experiment 2, symmetry was trained and tested by reversing the association order between labels and pictures, using a new set of stimuli. In both experiments, the baboons successfully demonstrated category discrimination, but had only a weak (though significant) tendency to respond in accordance with symmetry during test trials. Altogether, our results confirm that symmetry is inherently difficult in non-human animals. We discuss possible explanations for such a limitation and give reasons for thinking that the effects of categorization on symmetry should be further investigated.  相似文献   

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