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Depression in some patients with spinal cord injuries may be clinically significant and, when present, should be treated to
decrease morbidity including decreased physical functioning. Depression associated with spinal cord injury (SCI) may be misevaluated,
due to (1) nonspecific multifactorial production of depression symptoms and (2) SCI-specific decrease in somatic sensory central
nervous system input. The Somatic Suppression Hypothesis suggests that SCI patients have difficulty experiencing any intense
emotion because of suppression of physiological arousal. In addition, cognitive processes that may reduce depression in SCI
patients include: (1) attribution of somatic symptoms of depression to medical (biological) causes, (2) realistic, positive
expectations for physical improvement, and (3) the perception that the disability of the SCI is only minimally related to
the patient’s self-care after complete evaluation. Health personnel should accept lack of depression in SCI, and should encourage
positive realistic expectations of recovery. 相似文献
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Journal of Religion and Health - Visibility for transgender and gender nonconforming people and the elderly is growing; however, thus far the overlap of the two groups has rarely been considered.... 相似文献
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Kindling-induced changes in plasticity of the rat amygdala and hippocampus 总被引:3,自引:0,他引:3 下载免费PDF全文
Schubert M Siegmund H Pape HC Albrecht D 《Learning & memory (Cold Spring Harbor, N.Y.)》2005,12(5):520-526
Temporal lobe epilepsy (TLE) is often accompanied by interictal behavioral abnormalities, such as fear and memory impairment. To identify possible underlying substrates, we analyzed long-term synaptic plasticity in two relevant brain regions, the lateral amygdala (LA) and the CA1 region of the hippocampus, in the kindling model of epilepsy. Wistar rats were kindled through daily administration of brief electrical stimulations to the left basolateral nucleus of the amygdala. Field potential recordings were performed in slices obtained from kindled rats 48 h after the last induced seizure, and in slices from sham-implanted and nonimplanted controls. Kindling resulted in a significant impairment of long-term potentiation (LTP) in both the LA and the CA1, the magnitude of which was dependent on the number of prior stage V seizures. Saturation of CA1-LTP, assessed through repeated spaced delivery of high-frequency stimulation, occurred at lower levels in kindled compared to sham-implanted animals, consistent with the hypothesis of reduced capacity of further synaptic strengthening. Furthermore, theta pulse stimulation elicited long-term depression in the amygdala in nonimplanted and sham-implanted controls, whereas the same stimulation protocol stimulation caused LTP in kindled rats. In conclusion, kindling differentially affects the magnitude, saturation, and polarity of LTP in the CA1 and LA, respectively, most likely indicating an activity-dependent mechanism in the context of synaptic metaplasticity. 相似文献
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Previous research and theory have conceptualized impulsivity as a multifaceted construct that requires multiple modes of measurement
for accurate assessment. This article describes a software package that includes four paradigms for measuring multiple and
unique aspects of impulsivity. Specifically, four tasks are described: (1) the two choice impulsivity paradigm, (2) the single
key impulsivity paradigm, (3) the GoStop impulsivity paradigm, and (4) the time paradigm. These tasks measure processes related
to the capacity to tolerate delay for reward, to inhibit an already initiated response, and to estimate the passage of time.
These processes have been found to be important to the understanding of impulsive behaviors. The programs are flexible and
allow the experimenter to manipulate a number of parameters related to delay-reward contingencies, timing, performance feedback/payment,
and data output variables. Manipulation of these parameters makes the paradigms scalable to a wide range of ability levels
and appropriate for samples ranging from children to adults. The four paradigms in this software package are available at
no cost and can be obtained by contacting the corresponding author. 相似文献
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Schubert TW 《Personality & social psychology bulletin》2004,30(6):757-769
Men and women differ in the meaning they attribute to physical coercion and bodily force. Men associate bodily force with gaining power, whereas women associate bodily force with expressing loss of power. It is hypothesized that because of these associations, performing bodily forceful behavior feeds back on appraisals of one's power and that bodily feedback effects will mirror the gender differences in associations. Supporting these hypotheses, it was found that unobtrusively inducing behavior related to bodily force (making a fist) activated the concept of power in a Stroop task for both genders but that it increased hope for power and positive judgments of an assertively acting target for men, whereas it decreased hope for power and led to negative judgments of an assertively acting target for women. 相似文献