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111.
De Wet Wolmarans Dan J. Stein Brian H. Harvey 《Cognitive, affective & behavioral neuroscience》2016,16(3):551-560
Burying forms part of the normal behavioral routine of rodents, although its expression is species-specific. However, it has been suggested that aberrant burying behavior, of which marble-burying (MB) is an example, may represent neophobic and/or compulsive-like behavior. In the present investigation, we assessed MB in an established animal model of obsessive–compulsive disorder (OCD)—namely, spontaneous stereotypy in the deer mouse—to establish whether high (H) stereotypy is associated with neophobia and/or another compulsive endophenotype, i.e. MB, as compared to nonstereotypical (N) controls. A three-trial, one-zone MB test was performed over three consecutive evenings both before and after chronic treatment with high-dose (50 mg/kg/day) oral escitalopram. Neophobia was measured via the number of marbles buried during the first pre- and posttreatment MB trials, and compulsive-like behavior via the number of marbles buried over all pre- and posttreatment MB trials. The data from the present study support earlier findings that burying is a normal behavioral routine (inherent burying behavior, IBB) that is expressed by all deer mice, irrespective of stereotypical cohort, and is not associated with either neophobia or compulsiveness. Indeed, chronic escitalopram treatment, which is similarly effective in treating clinical anxiety and OCD, as well as in attenuating H behavior, failed to influence IBB. Although 11 % of the animals presented with a unique burying endophenotype (high burying behavior), escitalopram also failed to attenuate said behavior, necessitating further investigation as to its relevance. In conclusion, MB cannot be regarded as a measure of anxiety-like or compulsive behavior in the deer mouse model of OCD. 相似文献
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113.
Dong-Yuan Debbie Wang F. Dan Richard Brittany Ray 《Quarterly journal of experimental psychology (2006)》2016,69(8):1648-1656
The stimulus–response correspondence (SRC) effect refers to advantages in performance when stimulus and response correspond in dimensions or features, even if the common features are irrelevant to the task. Previous research indicated that the SRC effect depends on the temporal course of stimulus information processing. The current study investigated how the temporal overlap between relevant and irrelevant stimulus processing influences the SRC effect. In this experiment, the irrelevant stimulus (a previously associated tone) preceded the relevant stimulus (a coloured rectangle). The irrelevant and relevant stimuli onset asynchrony was varied to manipulate the temporal overlap between the irrelevant and relevant stimuli processing. Results indicated that the SRC effect size varied as a quadratic function of the temporal overlap between the relevant stimulus and irrelevant stimulus. This finding extends previous experimental observations that the SRC effect size varies in an increasing or decreasing function with reaction time. The current study demonstrated a quadratic function between effect size and the temporal overlap. 相似文献
114.
高压氧对小鼠学习记忆及脑细胞形态结构的影响 总被引:2,自引:0,他引:2
实验用两种行为模型(旷场行为模型和Y-迷宫分辨学习模型)观察了幼龄小鼠在不同压力的高压氧处理后,对新异环境的探究行为和自发活动情况,以及学习记忆能力的变化;并用XY-生物医学电脑图像分析仪分析了与学习记忆相关的脑区(大脑皮层、海马)神经元密度,细胞核面积,胞核/胞浆比值的变化。结果表明:(1)与对照组相比,吸0.1MPa高压氧的幼鼠学习记忆能力明显提高,相关脑区的神经元密度、细胞核面积、胞核/浆比均显著增加。(2)吸0.25MPa高压氧的幼鼠学习记忆能力与对照组相比无明显变化,但其在新异环境中的自发行为明显减少。提示:慢性吸入0.1MPa高压氧有利于促进幼鼠脑的生长发育,增强脑功能活动。 相似文献
115.
The bundling literature largely holds that a person's reaction to a given product bundle depends only on the characteristics of the products contained in the bundle. This paper, instead, proposes that people evaluate bundles in reference to other bundles that they have seen. Prior research indicates that people are sensitive to a bundle's “attribute inventory” or the aggregate level of comparable attributes possessed by its constituent products. We show that when people evaluate a bundle, they compare the attribute inventories that it offers to those offered by other bundles that they have seen. The resulting compositional comparisons can occur without changes to the products that comprise the target and contextual bundles, vary by attribute comparability and attentional focus, and coexist with (and at times reverse the effects of) well‐established product‐specific context effects, which are determined solely by the products and their attributes. 相似文献
116.
Andreea Butucescu Drago Iliescu Cristian‐Dan Opariuc 《International Journal of Selection & Assessment》2019,27(4):406-410
This study tested the Selection Procedural Justice Scale (SPJS) in an educational setting. The sample consisted of 617 students. Four different confirmatory models were tested, followed by an IRT analysis to test the scale structure at the item level in the two different contexts (selection vs. academic exams). Results indicated that the 11‐factor structure is the best factorial solution, and SPJS items were found to be free of DIF. 相似文献
117.
Sylvia Niehuis Alan Reifman Kareem Al‐Khalil Cary R. Oldham Dan Fang Michael O'Boyle Tyler H. Davis 《Personal Relationships》2019,26(2):209-231
To differentiate romantic disillusionment from similar constructs of dissatisfaction and regret, functional Magnetic Resonance Imaging (fMRI) data obtained when romantically involved individuals (N = 39) were reminded of relationship events representing these emotions were analyzed. Whole‐brain activations suggested disillusionment‐linked processes not observed for dissatisfaction or regret. Compared to dissatisfying events, disillusioning ones showed greater activity in regions pertaining to evaluation, reflection, and reconciling conflicting information (e.g., anterior cingulate cortex). No regions showed significantly more activation for dissatisfying than disillusioning events. Compared to regret‐inducing events, disillusioning events showed greater activation in areas thought pertinent to detail processing and decision making (occipital fusiform and lingual gyrus). Regret‐inducing events activated regions suggesting the planning and thoughts of how one could have acted differently (e.g., prefrontal cortex). 相似文献
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119.
Juncai Pu Xinyu Zhou Dan Zhu Xiaoni Zhong Lining Yang Haiyang Wang 《Psychology, health & medicine》2017,22(6):680-692
Women are an important part of the medical workforce, yet little is known about gender differences in psychological morbidity, burnout, job stress and job satisfaction among neurologists. This study assessed gender differences in a large national sample of Chinese neurologists. Multivariate analyses were performed to examine associations. A total of 5558 neurologists were included in the analysis. Compared with their male counterparts, female neurologists were generally younger; were less likely to be married or to have children; had higher levels of education; were in practice for a shorter period of time; were less likely to hold senior roles; and had lower incomes. Male and female neurologists worked similar hours and spent a similar number of nights on call. No gender differences were found in psychological morbidity, burnout, and high levels of job stress for female and male, respectively. Women had higher emotional exhaustion scores, while men were more likely to have low levels of job satisfaction. The multivariate analysis showed that factors independently associated with psychological morbidity, burnout, high levels of job stress and low levels of job satisfaction were generally similar for women and men. These findings increase our understanding of gender differences in psychological morbidity, burnout, job stress, and job satisfaction among neurologists. As more women join the medical profession, these differences may be useful in designing medical training and practice. 相似文献
120.
The present study aimed to update previous meta-analyses of gCBT, and focus specifically on recent studies in which the Beck Depression Inventory (BDI) was used to assess outcome. PsycINFO, PubMed, EMBASE, and Cochrane were searched for eligible studies. Both randomized controlled trials (RTC, k = 9) and non-RTCs (k = 1) published since 2000 were included. On the BDI large significant effect sizes were found for gCBT compared with treatment as usual (TAU, d = 4.64), wailing list controls (WLC, d = 1.20), and both of these comparison conditions combined with studies of well-defined alternative treatments (ALT, d = 1.61). On the BDI a moderate effect size (d = 0.53) was found for comparisons of gCBT and ALT groups. gCBT also had large and significant effects on depressive cognition assessed with the Automatic Thoughts Questionnaire and the Dysfunctional Attitudes Scale compared with WLC and ALT comparison groups (d = 2.66). This meta-analysis shows that gCBT is a robust intervention for depression in adults. 相似文献