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101.
The understanding of the eating disorders (EDs) anorexia (AN) and bulimia nervosa (BN) has undergone remarkable advancements in the past decade. Most studies that have been done in AN show brain gray and white matter volume loss during the ill state that, at least in part, remit with recovery. Similar patterns occur for brain phospholipids assessed using magnet resonance spectroscopy (MRS). Imaging studies have been used to provide functional information regarding serotonin neuroreceptor dynamics, regional cerebral blood flow, or cerebral glucose metabolism. Such studies have implicated cingulate, frontal, temporal, and parietal regions in AN. Investigators have found that challenges such as food and body image distortions may activate some of these regions, raising the possibility that such studies may shed light on puzzling AN symptoms, such as body image distortions or extremes of appetitive behaviors. Emerging data suggest these disturbances persist after recovery from AN, suggesting the possibility that these are traits that may create a vulnerability to develop an ED. While fewer studies have been done in BN or binge eating disorder, there may be disturbances of serotonin metabolism in similar brain regions. Taken together, these findings give promise for future investigations with the hope of delineating brain pathways that contribute to the etiology of EDs 相似文献
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Bogdan Kostic Anne M. Cleary Kaye Severin Samuel W. Miller 《Psychonomic bulletin & review》2010,17(3):405-411
We examined whether people can detect analogical resemblance to an earlier experimental episode without being able to recall
the experimental source of the analogical resemblance. We used four-word analogies (e.g., robin-nest/beaver-dam), in a variation of the recognition-without-cued-recall method (Cleary, 2004). Participants studied word pairs (e.g., robin-nest) and were shown new word pairs at test, half of which analogically related to studied word pairs (e.g., beaver-dam) and half of which did not. For each test pair, participants first attempted to recall an analogically similar pair from
the study list. Then, regardless of whether successful recall occurred, participants were prompted to rate the familiarity
of the test pair, which was said to indicate the likelihood that a pair that was analogically similar to the test pair had
been studied. Across three experiments, participants demonstrated an ability to detect analogical resemblance without recalling
the source analogy. Findings are discussed in terms of their potential relevance to the study of analogical reasoning and
insight, as well as to the study of familiarity and recognition memory. 相似文献
104.
Edward A. Selby Cynthia M. Bulik Laura Thornton Wade H. Berrettini Steve Crawford Katherine A. Halmi Craig L. Johnson Allan S. Kaplan Detlev O. Nutzinger Janet Treasure Walter H. Kaye 《Behaviour research and therapy》2010,48(7):634-645
Anorexia nervosa (AN) is perhaps the most lethal mental disorder, in part due to starvation-related health problems, but especially because of high suicide rates. One potential reason for high suicide rates in AN may be that those affected face pain and provocation on many fronts, which may in turn reduce their fear of pain and thereby increase risk for death by suicide. The purpose of the following studies was to explore whether repetitive exposure to painful and destructive behaviors such as vomiting, laxative use, and non-suicidal self-injury (NSSI) was a mechanism that linked AN-binge-purging (ANBP) subtype, as opposed to AN-restricting subtype (ANR), to extreme suicidal behavior. Study 1 utilized a sample of 787 individuals diagnosed with one or the other subtype of AN, and structural equation modeling results supported provocative behaviors as a mechanism linking ANBP to suicidal behavior. A second, unexpected mechanism emerged linking ANR to suicidal behavior via restricting. Study 2, which used a sample of 249 AN patients, replicated these findings, including the second mechanism linking ANR to suicide attempts. Two potential routes to suicidal behavior in AN appear to have been identified: one route through repetitive experience with provocative behaviors for ANBP, and a second for exposure to pain through the starvation of restricting in ANR. 相似文献
105.
Brandon K. Burr J. Brooke Kuns LaDonna Atkins Anita Glee Bertram Kaye Sears 《Journal of Religion, Spirituality & Aging》2015,27(2-3):183-200
Many families face difficulties in maintaining healthy relationships. Past research has identified that religious and/or spiritual beliefs and practices can enhance family well-being. Research has also shown that religious and/or beliefs and practices can shape the aging process. Yet there exists little information on the methods through which religious and/or spiritual beliefs are passed on to future generations. This study utilized Eriksonian conceptual ideas, and grounded theory methods to conduct interviews with 13 older adults on the process through which religious and/or spiritual beliefs are passed on to children and grandchildren. Ideas are discussed for practitioners based on study findings. 相似文献
106.
Elias Asfaw Zegeye Josue Mbonigaba Sylvia Blanche Kaye 《Psychology, health & medicine》2018,23(5):525-531
HIV/AIDS impacts significantly on pregnant women and on children in Ethiopia. This impact has a multiplier effect on household economies and on productivity losses, and is expected to vary across rural and urban settings. Applying the human capital approach to data collected from 131 respondents, this study estimated productivity losses per HIV-positive pregnant woman–infant pair across urban and rural health facilities in Ethiopia, which in turn were used to estimate the national productivity loss. The study found that the annual productivity loss per woman–infant pair was Ethiopian birr (ETB) 7,433 or United States dollar (US$) 378 and ETB 625 (US$ 32) in urban and rural settings, respectively. The mean patient days lost per year due to inpatient admission at hospitals/health centres was 11 in urban and 22 in rural health facilities. On average, urban home care-givers spent 20 (SD = 21) days annually providing home care services, while their rural counterparts spent 23 days (SD = 26). The productivity loss accounted for 16% and 7% of household income in urban and rural settings, respectively. These high and varying productivity losses require preventive interventions that are appropriate to each setting to ensure the welfare of women and children in Ethiopia. 相似文献
107.
Helen Kaye G. C. Preston L. Szabo H. Druiff N. J. Mackintosh 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1987,39(2):127-145
Conditioning may generalize from one context to another when latent inhibition (the effect on subsequent conditioning of prior unreinforced exposure to the stimulus) does not. Experiment 1 studied conditioned approach and licking by rats to a stimulus paired with the delivery of water and confirmed that latent inhibition could be abolished by a change of context, while prior aversive conditioning to the stimulus, produced by pairing it with mild shock, interfered with the acquisition of conditioned approach and licking regardless of this change of context. Thus even when conditioning and latent inhibition were measured in the same way, the former generalized across contexts, and the latter did not. Experiment 2 showed that the effects not only of unreinforced exposure to a stimulus but also of presentation of the stimulus uncorrelated with the delivery of water were confined to the context in which they occurred. Thus the generalization of conditioning from one context to another and the failure of latent inhibition to generalize cannot be attributed to the occurrence of rein-forcers during conditioning and their absence in latent inhibition. This conclusion was confirmed in Experiment 3, where animals received both aversive conditioning trials and unreinforced presentations of other stimuli in the treatment phase of the experiment, but were then conditioned to one of these stimuli paired with water. Once again, the effects of aversive conditioning transferred perfectly from one context to another, while those of unreinforced presentations did not. Latent inhibition, these results suggest, is not easily explained by supposing that animals associate an unreinforced stimulus with zero consequences and have to unlearn this association when the stimulus is then paired with a reinforcer. 相似文献
108.
H Kaye J M Pearce 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1984,36(2):131-144
In two experiments rats initially received appetitive Pavlovian conditioning with an auditory conditioned stimulus (CS). Subsequently this stimulus was presented in compound with a novel light and paired with the same appetitive reinforcer. In keeping with the outcome of many such experiments on blocking, there was very little evidence of appetitive conditioning during subsequent independent presentations of the light. Of main concern in the present experiments, however, was the influence of this training on the strength of the orienting response directed towards the light. When the light was first presented it elicited a strong orienting response. The strength of this response declined rapidly when the light was presented in compound with the previously trained auditory CS but more slowly when it was paired with the reinforcer either by itself or in conjunction with an initially neutral auditory stimulus. It is suggested that the extent to which the events following the light are accurately predicted determines the strength of orientation towards this stimulus. 相似文献
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