Results 71 to 80 of about 46,771 (232)

Social Signals in Primate Orbitofrontal Cortex [PDF]

Current Biology, 2012
Primate evolution produced an increased capacity to respond flexibly to varying social contexts as well as expansion of the prefrontal cortex. Despite this association, how prefrontal neurons respond to social information remains virtually unknown. People with damage to their orbitofrontal cortex (OFC) struggle to recognize facial expressions, make ...
Watson, Karli K., Platt, Michael L.
openaire   +2 more sources

Individual‐specific resting‐state networks predict language dominance in drug‐resistant epilepsy

Epilepsia, EarlyView.
Abstract Objective This study was undertaken to reliably estimate individual‐specific resting‐state cortical networks and determine whether language network topography can predict task‐based language dominance in drug‐resistant epilepsy. Methods We utilized a multisession hierarchical Bayesian model (MS‐HBM) trained on drug‐resistant epilepsy patients ...
Mervyn Jun Rui Lim, Shaoshi Zhang, Shreya Pande, Aihuiping Xue, Ru Kong, Kareem Zaghloul, Sara Inati, B. T. Thomas Yeo   +7 more
wiley   +1 more source

Mindfulness meditation increases interictal epileptiform discharges in meditation‐naïve surgical epilepsy patients

Epilepsia, EarlyView.
Abstract Objective Meditation has widely recognized psychological and neuromodulatory benefits, yet its effects on epileptiform activity remain unclear. This study examined whether novice meditation modulates interictal epileptiform discharges (IEDs) in patients with drug‐resistant epilepsy using intracranial electroencephalography (iEEG).
Shweta Soni, Karine Brochu, Paolo Federico, Walter Hader, Julia W. Y. Kam, Fady Girgis   +5 more
wiley   +1 more source

Complementary predictive value of electromagnetic source imaging and hemodynamic responses in epilepsy surgery: A quantitative spatial analysis

Epilepsia, EarlyView.
Abstract Objective Accurate presurgical evaluation should assess not only the location but also the spatial extent of epileptic activity relative to the surgical cavity, a practical approximation of the epileptogenic zone. We evaluated how electromagnetic source imaging (EMSI) and hemodynamic responses to epileptic discharges relate to the surgical ...
Chifaou Abdallah, Edouard Delaire, Arielle Dascal, Aura González, Zhengchen Cai, Tanguy Hedrich, Hassan Khajehpour, Satoru Ikemoto, Masataka Tanaka, Boris C. Bernhardt, Eliane Kobayashi, Jean Gotman, Birgit Frauscher, Christophe Grova   +13 more
wiley   +1 more source

MPH-Induced Changes in Right Frontal Metabolism

Pediatric Neurology Briefs, 1999
The effects of methylphenidate (MPH), a drug that increases dopamine, on brain glucose metabolism in 20 cocaine abusers was studied using PET scans and measurements of D2 receptors at the Brookhaven National Laboratory, the State University of New York ...
J Gordon Millichap
doaj   +1 more source

Electroclinical features and dynamic network connectivity of orbitofrontal epilepsy

Epilepsia, EarlyView.
Abstract Objective Orbitofrontal epilepsy (OFE) is rare and underrecognized. This study aims to characterize electroclinical features and dynamic network connectivity of OFE and subtypes. Methods We retrospectively analyzed 17 patients with OFE who underwent stereoelectroencephalographic (SEEG) electrode implantation and epilepsy surgery at our center.
Meixuan Ren, Cuiping Xu, Na Clara Pan, Runshi Gao, Wei Shu, Xueyuan Wang, Xi Zhang, Li Wang, Liping Zhang, Xiaoming Yan, Xiaohua Zhang, Tao Yu, Mohamad Z Koubeissi, Yuping Wang   +13 more
wiley   +1 more source

Different prefrontal cortex activity patterns in bipolar and unipolar depression during verbal fluency tasks based on functional near infrared spectroscopy study

Scientific Reports
This study aimed to investigate the functionality of the prefrontal cortex in patients with unipolar depression (UD) and bipolar depression (BD) using functional near-infrared spectroscopy (fNIRS) during a verbal fluency task (VFT).
Lan Mou, Yuqi Shen, Boyuan Wu, Chengyu Zhang, Jiayun Zhu, Qian Tan, Xiaomei Zhang, Zefeng Wang, Zhongxia Shen   +8 more
doaj   +1 more source

Attention-dependent modulation of cortical taste circuits revealed by Granger causality with signal-dependent noise.

PLoS Computational Biology, 2013
We show, for the first time, that in cortical areas, for example the insular, orbitofrontal, and lateral prefrontal cortex, there is signal-dependent noise in the fMRI blood-oxygen level dependent (BOLD) time series, with the variance of the noise ...
Qiang Luo, Tian Ge, Fabian Grabenhorst, Jianfeng Feng, Edmund T Rolls   +4 more
doaj   +1 more source

Components of generalized onset seizures with focal evolution progressing to bilateral tonic–clonic seizures using quantitative electroencephalography in children: Focal or generalized?

Epilepsia, EarlyView.
Abstract Absence seizures evolving to bilateral tonic–clonic seizures may have focal or asymmetric clinical features. Using quantitative electroencephalography (EEG) may evaluate this phenomenon and the involved neuronal network. We conducted a retrospective chart review of pediatric patients with generalized epilepsy and normal brain magnetic ...
Juan Toro‐Perez, Erick Sell, Asif Doja, Ana Suller‐Marti, Katherine Muir, Sarah Healy, Srinivas Bulusu, Sharon Whiting, Roberto Caraballo   +8 more
wiley   +1 more source

Absence of Spatial Tuning in the Orbitofrontal Cortex

PLoS ONE, 2014
There is limited data in the literature to explicitly support the notion that neurons in OFC are truly action-independent in their coding. We set out to specifically test the hypothesis that OFC value-related neurons in area 13 m of the monkey do not carry information about the action required to obtain that reward--that activity in this area ...
Lauren E Grattan, Paul W Glimcher
openaire   +4 more sources