کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6233880 1277554 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gray colored glasses: Is major depression partially a sensory perceptual disorder?
ترجمه فارسی عنوان
عینک های رنگی خاکستری: آیا افسردگی عمده تا حدی یک اختلال ادراکی حسی است؟
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی روانپزشکی و بهداشت روانی
چکیده انگلیسی

BackgroundMajor depression is a neuropsychiatric disorder that can involve profound dysregulation of mood. While depression is associated with additional abnormalities besides reduced mood, such as cognitive dysfunction, it is not well established that sensory perception is also altered in this disorder (aside from in psychotic depression). Recent studies have shown that visual processing, in as early a stage as the retina, is impaired in depression. This paper examines the hypothesis that major depression can involve alterations in sensory perception.MethodsA Pubmed literature search investigated several lines of evidence: innervation of sensory cortex by serotonin and norepinephrine; antidepressant drugs and depression itself affecting processing of facial expressions of emotion; electroencephalography (EEG) studies of depressed persons and antidepressant drugs; involvement of the serotonergic 5HT2A receptor in both depression and hallucinogenic drug action; psychotic depression involving sensory distortions; dopamine possibly playing a role in depression; and the antidepressant effect of blocking the NMDA receptor with ketamine.ResultsData from each of these lines of evidence support the hypothesis that major depression can involve sensory perceptual alterations.ConclusionsLoss of interest in one's daily activities and inability to experience pleasure, also known as anhedonia, in major depression may in part be mediated by sensory abnormalities, whereby normal sensory perceptions are no longer present to activate reward circuitry.LimitationsThe data supporting the hypothesis tend to be associative, so further confirmation of the hypothesis awaits additional controlled experiments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Affective Disorders - Volume 151, Issue 2, November 2013, Pages 418-422
نویسندگان
,