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Rajan S. Patel MBChB MD FRCS ORL‐HNS David P. Goldstein MD FRCS Jennifer Guillemaud MD Guillem Andreu Bruch MD Dale Brown MD FRCS Ralph W. Gilbert MD FRCS Patrick J. Gullane MD FRCS Kevin M. Higgins MSc MD FRCS Jonathan Irish MD FRCS Danny J. Enepekides BSc MD FRCS 《Head & neck》2010,32(11):1444-1451
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Parul J. Shukla MS FRCS Ravi Maharaj Abe Fingerhut 《European journal of trauma and emergency surgery》2010,36(1):3-9
Background:
Following the general trend in the evolution of minimal access surgery (MAS), the place of laparoscopy for diagnostic and therapeutic procedures in the emergency setting is well defined. As for all laparoscopic procedures, the ergonomic and technical aspects of MAS in acute surgery are important issues. 相似文献998.
Guido A. van Wingen Philip van Eijndhoven Indira Tendolkar Robbert Jan Verkes Jan K. Buitelaar Guillén Fernández 《Journal of psychiatric research》2010,44(8):527-534
Mood-congruent cognitive biases constitute critical factors for the vulnerability to depression and its maintenance. One important aspect is impaired memory for positive information during depression and after recovery. To elucidate its state (during depression only) and trait (during depression and recovery) related neural bases, we investigated medication free depressed, recovered, and healthy individuals with functional MRI while they memorized and recognized happy and neutral face stimuli. The imaging results revealed group differences in mood-incongruent successful memory encoding and retrieval activity already in the absence of significant memory performance differences. State effects were observed in the amygdala and posterior cingulate cortex. Whereas the amygdala was generally involved in memory formation, its activity predicted subsequent forgetting of neutral faces in depressed patients. Furthermore, the amygdala and posterior cingulate cortex were involved in memory retrieval of happy faces in depressed patients only. Trait effects were observed in the fusiform gyrus and prefrontal cortex. The fusiform gyrus was involved in memory formation and retrieval of happy faces in both patient groups, whereas it was involved in memory formation and retrieval of neutral faces in healthy individuals. Similar trait effects were observed during memory retrieval in the orbitofrontal cortex and left inferior frontal gyrus. Thus, while memory processing of positive information in the amygdala and posterior cingulate cortex is biased during depression only, memory processing in the fusiform gyrus and prefrontal cortex is biased also after recovery. These distinct neural mechanisms may respectively constitute symptom maintenance and cognitive vulnerability factors for depression. 相似文献
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