Abnormal corticostriatal activity during fear perception in bipolar disorder
نویسندگان
چکیده
منابع مشابه
Abnormal superior temporal connectivity during fear perception in schizophrenia.
Patients with schizophrenia have difficulty in decoding facial affect. A study using event-related functional neuroimaging indicated that errors in fear detection in schizophrenia are associated with paradoxically higher activation in the amygdala and an associated network implicated in threat detection. Furthermore, this exaggerated activation to fearful faces correlated with severity of flat ...
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Compulsive behaviors in obsessive-compulsive disorder (OCD) may be related to deficits in reward processing mediated by corticostriatal circuitry, a brain network implicated in the pathophysiology of OCD. Performing compulsive actions can be perceived as a reward to OCD patients because it temporarily reduces the anxiety provoked by obsessions. Although most OCD literature provides evidence of ...
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This study investigates the distinct patterns of local and long-range gamma oscillations between patients with bipolar disorder (BD) and major depressive disorder (MDD). Twenty BD patients, twenty MDD patients, and twenty normal controls participated in this study. For each participant, the event-related magnetoencephalographic responses while performing an implicit emotional task were recorded...
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OBJECTIVE Abnormalities in frontal lobe phosphorous metabolism in patients with bipolar disorder have been reported, but many of the patients studied were receiving lithium. In this study, medication-free bipolar patients were examined to determine abnormalities in frontal lobe high-energy phosphorous metabolism. METHOD In vivo phosphorous-31 magnetic resonance spectroscopic imaging was perfo...
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ژورنال
عنوان ژورنال: NeuroReport
سال: 2008
ISSN: 0959-4965
DOI: 10.1097/wnr.0b013e328310af58