نتایج جستجو برای: dosolateral prefrontal cortex dlpfc

تعداد نتایج: 149890  

2015
Ting Shen Cao Li Biao Wang Wei-min Yang Chen Zhang Zhiguo Wu Mei-hui Qiu Jun Liu Yi-feng Xu Dai-hui Peng

OBJECTIVE Evidence of the brain network involved in cognitive dysfunction has been inconsistent for major depressive disorder (MDD), especially during early stage of MDD. This study seeks to examine abnormal cognition connectivity network (CCN) in MDD within the whole brain. METHODS Sixteen patients with MDD and 16 health controls were scanned during resting-state using 3.0 T functional magne...

Journal: :NeuroImage 2016
Bo Shen Yunlu Yin Jiashu Wang Xiaolin Zhou Samuel M. McClure Jian Li

In intertemporal choice (ITC), people discount future rewards in proportion to the time delay until reward receipt. Despite recent non-invasive brain stimulation studies suggesting a general causal link between dorsolateral prefrontal cortex (dlPFC) activity and ITC impulsivity, results regarding the functional specificity of dlPFC are mixed. We used high-definition transcranial direct current ...

2015
Nathalie Schicktanz Matthias Fastenrath Annette Milnik Klara Spalek Bianca Auschra Thomas Nyffeler Andreas Papassotiropoulos Dominique J.-F. de Quervain Kyrill Schwegler

The dorsolateral prefrontal cortex (DLPFC) plays a key role in working memory. Evidence indicates that transcranial magnetic stimulation (TMS) over the DLPFC can interfere with working memory performance. Here we investigated for how long continuous theta-burst stimulation (cTBS) over the DLPFC decreases working memory performance and whether the effect of cTBS on performance depends on working...

Journal: :NeuroImage 2007
Emi Takahashi Kenichi Ohki Dae-Shik Kim

Recent functional neuroimaging studies have shown that multiple cortical areas are involved in memory encoding and retrieval. However, the underlying anatomical connections among these memory-related areas in humans remain elusive due to methodological limitations. Diffusion tensor imaging (DTI) is a technique based on detecting the diffusion of water molecules from magnetic resonance images. D...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2014
Sarah Rudorf Todd A Hare

External circumstances and internal bodily states often change and require organisms to flexibly adapt valuation processes to select the optimal action in a given context. Here, we investigate the neurobiology of context-dependent valuation in 22 human subjects using functional magnetic resonance imaging. Subjects made binary choices between visual stimuli with three attributes (shape, color, a...

Journal: :Neuropsychobiology 2012
C Baeken D L Schrijvers B G C Sabbe M A Vanderhasselt R De Raedt

BACKGROUND Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive tool to investigate neural conduction in motor processes. Most rTMS research has been conducted by targeting the primary motor cortex. Several studies have also found increased psychomotor speed after rTMS of the dorsolateral prefrontal cortex (DLPFC). However, these studies were mainly performed in psychiatric pat...

Journal: :Cerebral cortex 2006
Olivier A Coubard Zoï Kapoula

This study explores whether vergence eye movements along the median plane can be triggered with short latencies, and the role of the dorsolateral prefrontal cortex (DLPFC) in controlling such movements. We used a gap paradigm and applied transcranial magnetic stimulation (TMS) in 10 humans making saccades or vergence. TMS over the motor cortex had no effect on any eye movement parameter. TMS ov...

Journal: :Journal of affective disorders 2005
Paolo Brambilla Jeffrey A Stanley Mark A Nicoletti Roberto B Sassi Alan G Mallinger Ellen Frank David Kupfer Matcheri S Keshavan Jair C Soares

BACKGROUND Magnetic resonance spectroscopy studies (MRS) reported abnormally low levels of N-acetylaspartate (NAA, a marker of neuronal integrity) in dorsolateral prefrontal cortex (DLPFC) of adult bipolar patients, suggesting possible neuronal dysfunction. Furthermore, recent MRS reports suggested possible lithium-induced increase in NAA levels in bipolar patients. We examined with in vivo (1)...

Journal: :Cerebral cortex 2013
Sandra Chanraud Anne-Lise Pitel Eva M Müller-Oehring Adolf Pfefferbaum Edith V Sullivan

Abnormal brain activity may reflect compensation when observed in patients who perform normally on tests requiring functions usually observed as impaired. Operational criteria defining compensation have been described and aid in distinguishing compensatory from chance events. Here, we tested whether previously published functional magnetic resonance imaging data acquired in 15 recovering alcoho...

Journal: :Brain research 2011
O'Dhaniel A Mullette-Gillman Jacqueline M Detwiler Amy Winecoff Ian Dobbins Scott A Huettel

Decision making is commonly conceived to reflect the interplay of mutually antagonistic systems: executive processes must inhibit affective information to make adaptive choices. Consistent with this interpretation, prior studies have shown that the dorsolateral prefrontal cortex (dlPFC) is activated by executive processing and deactivated during emotional processing, with the reverse pattern fo...

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