Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0848237 (acute stress)
 4,619 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

FOR THE SELECTION OF RELEVANT INFORMATION OUT OF A CONTINUOUS STREAM OF INFORMATION, WHICH IS A COMMON DEFINITION OF ATTENTION, TWO CORE MECHANISMS ARE ASSUMED: a competition-based comparison of the neuronal activity in sensory areas and the top-down modulation of this competition by frontal executive control functions. Those control functions are thought to bias the processing of information toward the intended goals. Acute stress is thought to impair these frontal functions through the release of cortisol. In the present study, subjects had to detect a luminance change of a stimulus and ignore more salient but task irrelevant orientation changes. Before the execution of this task, subjects underwent a socially evaluated cold pressor test (SECPT) or a non-stressful control situation. The SECPT revealed reliable stress response with a significant increase of cortisol and alpha-amylase. Stressed subjects showed higher error rates than controls, particularly in conditions which require top-down control processing to bias the less salient target feature against the more salient and spatially separated distracter. By means of the EEG, subjects who got stressed showed a reduced allocation to the relevant luminance change apparent in a modulation of the N1pc. The following N2pc, which reflects a re-allocation of attentional resources, supports the error pattern. There was only an N2pc in conditions, which required to bias the less salient luminance change. Moreover, this N2pc was decreased as a consequence of the induced stress. These results allow the conclusion that acute stress impairs the intention-based attentional allocation and enhances the stimulus-driven selection, leading to a strong distractibility during attentional information selection.
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PMID:The influence of acute stress on attention mechanisms and its electrophysiological correlates. 2534 69

PURPOSE OF THE STUDY There s a known relation between the chronical back-pain-syndrome and psychical problems. We suppose a direct causality between acute stress and onset of the backpain syndrome. MATERIAL AND METHODS A prospective cohort-study (IV/2014 - VIII/2014) of patients who came to our emergency department with acute backpain-syndrome, with no relevant previous history - such as operations or chronic pain. We questioned together 39 patients (19 female and 20 male). The patients filled in two charts: FW7, and also a modified HADS-D. In the later one the patients were questioned in two extra points regarding contingent excessive emotional or existential problems in their brief history. The Pain-Severity-Score was assessed as well. RESULTS Combined together, relevant score-results and / or anamnesis of excessive emotional or existential problem was found in 79.5% (SD 0.4%) of the whole cohort. CONCLUSIONS This could have implications for guidelines, introducing the psychotherapy-first into the concepts. Key words:stress; well-being; depression; back-pain-syndrome.
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PMID:Causal Relation of Psychical Stress to Acute Back Pain. 3025 82