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Motor imagery in bipolar depression with slowed movement.

Artikel i vetenskaplig tidskrift
Författare Benny Liberg
Mats Adler
Tomas Jonsson
Mikael Landén
Christoffer Rahm
Lars-Olof Wahlund
Maria Wiberg-Kristoffersen
Björn Wahlund
Publicerad i The Journal of nervous and mental disease
Volym 201
Nummer/häfte 10
Sidor 885-93
ISSN 1539-736X
Publiceringsår 2013
Publicerad vid Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi
Sidor 885-93
Språk en
Länkar dx.doi.org/10.1097/NMD.0b013e3182a5...
Ämnesord Adult, Aged, Bipolar Disorder, complications, physiopathology, Cerebrum, physiology, physiopathology, Female, Functional Neuroimaging, instrumentation, methods, Gyrus Cinguli, physiology, physiopathology, Humans, Limbic System, physiology, physiopathology, Magnetic Resonance Imaging, instrumentation, methods, Male, Middle Aged, Motor Cortex, physiology, physiopathology, Movement, physiology, Movement Disorders, diagnosis, etiology, physiopathology, Parietal Lobe, physiology, physiopathology, Prefrontal Cortex, physiology, physiopathology
Ämneskategorier Psykiatri

Sammanfattning

We hypothesized that motor retardation in bipolar depression is mediated by disruption of the pre-executive stages of motor production. We used functional magnetic resonance imaging to investigate neural activity during motor imagery and motor execution to elucidate whether brain regions that mediate planning, preparation, and control of movement are activated differently in subjects with bipolar depression (n = 9) compared with healthy controls (n = 12). We found significant between-group differences. During motor imagery, the patients activated the posterior medial parietal cortex, the posterior cingulate cortex, the premotor cortex, the prefrontal cortex, and the frontal poles more than the controls did. Activation in the brain areas involved in motor selection, planning, and preparation was altered. In addition, limbic and prefrontal regions associated with self-reference and the default mode network were altered during motor imagery in bipolar depression with motor retardation.

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