نتایج جستجو برای: theta

تعداد نتایج: 13688  

Journal: :Alcoholism, clinical and experimental research 2003
Madhavi Rangaswamy Bernice Porjesz David B Chorlian Keewhan Choi Kevin A Jones Kongming Wang John Rohrbaugh Sean O'Connor Sam Kuperman Theodore Reich Henri Begleiter

BACKGROUND In this study, the magnitude and spatial distribution of theta power in the resting EEG were examined to explore the changes in the neurophysiological status of the alcoholic brain. Some state- and trait-related issues of theta power increases in the EEG of alcoholics were also examined. METHODS Absolute theta (3-7 Hz) power in eyes-closed EEGs of 307 alcohol-dependent subjects and...

Journal: :Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 2016
Joel C Robbie Adam R Clarke Robert J Barry Franca E Dupuy Rory McCarthy Mark Selikowitz

OBJECTIVE This study investigated differences in EEG coherence measures between two groups of children with Attention-Deficit/Hyperactivity Disorder (AD/HD) - one with the more common EEG profile (increased theta), and a group with excess alpha activity as the dominant EEG abnormality. METHODS 26 children (aged 9-13years) with AD/HD were included in each of the excess-theta and excess-alpha g...

Journal: :CoRR 2018
Angsheng Li Yicheng Pan

We propose the notion of {\it resistance of a graph} as an accompanying notion of the structure entropy to measure the force of the graph to resist cascading failure of strategic virus attacks. We show that for any connected network $G$, the resistance of $G$ is $\mathcal{R}(G)=\mathcal{H}^1(G)-\mathcal{H}^2(G)$, where $\mathcal{H}^1(G)$ and $\mathcal{H}^2(G)$ are the one- and two-dimensional s...

Journal: :Journal of immunology 2006
Seng-Lai Tan Jingyong Zhao Chen Bi Xinyi Cynthia Chen Deena L Hepburn Jian Wang Jonathon D Sedgwick Subba R Chintalacharuvu Songqing Na

The protein kinase C theta (PKC theta) serine/threonine kinase has been implicated in signaling of T cell activation, proliferation, and cytokine production. However, the in vivo consequences of ablation of PKC theta on T cell function in inflammatory autoimmune disease have not been thoroughly examined. In this study we used PKC theta-deficient mice to investigate the potential involvement of ...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2001
H Hirase X Leinekugel J Csicsvari A Czurkó G Buzsáki

Local versus distant coherence of hippocampal CA1 pyramidal cells was investigated in the behaving rat. Temporal cross-correlation of pyramidal cells revealed a significantly stronger relationship among local (<140 microm) pyramidal neurons compared with distant (>300 microm) neurons during non-theta-associated immobility and sleep but not during theta-associated running and walking. In contras...

Journal: :Neuron 2013
Eran Stark Ronny Eichler Lisa Roux Shigeyoshi Fujisawa Horacio G. Rotstein György Buzsáki

Both circuit and single-cell properties contribute to network rhythms. In vitro, pyramidal cells exhibit theta-band membrane potential (subthreshold) resonance, but whether and how subthreshold resonance translates into spiking resonance in freely behaving animals is unknown. Here, we used optogenetic activation to trigger spiking in pyramidal cells or parvalbumin immunoreactive interneurons (P...

Journal: :Physical review letters 2006
V Kubarovsky M Battaglieri R De Vita J Goett L Guo G S Mutchler P Stoler D P Weygand P Ambrozewicz M Anghinolfi G Asryan H Avakian H Bagdasaryan N Baillie J P Ball N A Baltzell V Batourine I Bedlinskiy M Bellis N Benmouna B L Berman A S Biselli S Bouchigny S Boiarinov R Bradford D Branford W J Briscoe W K Brooks S Bültmann V D Burkert C Butuceanu J R Calarco S L Careccia D S Carman S Chen E Clinton P L Cole P Collins P Coltharp D Crabb H Crannell V Crede J P Cummings R De Masi D Dale E De Sanctis P V Degtyarenko A Deur K V Dharmawardane C Djalali G E Dodge J Donnelly D Doughty M Dugger O P Dzyubak H Egiyan K S Egiyan L Elouadrhiri P Eugenio G Fedotov H Funsten M Y Gabrielyan L Gan M Garçon A Gasparian G Gavalian G P Gilfoyle K L Giovanetti F X Girod O Glamazdin J T Goetz E Golovach A Gonenc C I O Gordon R W Gothe K A Griffioen M Guidal N Guler V Gyurjyan C Hadjidakis K Hafidi R S Hakobyan J Hardie F W Hersman K Hicks I Hleiqawi M Holtrop C E Hyde-Wright Y Ilieva D G Ireland B S Ishkhanov E L Isupov M M Ito D Jenkins H S Jo K Joo H G Juengst J D Kellie M Khandaker W Kim A Klein F J Klein A V Klimenko M Kossov L H Kramer J Kuhn S E Kuhn S V Kuleshov J Lachniet J M Laget J Langheinrich D Lawrence T Lee Ji Li K Livingston H Lu M MacCormick N Markov B McKinnon B A Mecking J J Melone M D Mestayer C A Meyer T Mibe K Mikhailov R Minehart M Mirazita R Miskimen V Mochalov V Mokeev L Morand S A Morrow M Moteabbed P Nadel-Turonski I Nakagawa R Nasseripour S Niccolai G Niculescu I Niculescu B B Niczyporuk M R Niroula R A Niyazov M Nozar M Osipenko A I Ostrovidov K Park E Pasyuk C Paterson J Pierce N Pivnyuk D Pocanic O Pogorelko S Pozdniakov J W Price Y Prok D Protopopescu B A Raue G Riccardi G Ricco M Ripani B G Ritchie F Ronchetti G Rosner P Rossi F Sabatié C Salgado J P Santoro V Sapunenko R A Schumacher V S Serov Y G Sharabian N V Shvedunov E S Smith L C Smith D I Sober A Stavinsky S S Stepanyan S Stepanyan B E Stokes I I Strakovsky S Strauch M Taiuti D J Tedeschi A Teymurazyan U Thoma A Tkabladze S Tkachenko L Todor C Tur M Ungaro M F Vineyard A V Vlassov L B Weinstein M Williams E Wolin M H Wood A Yegneswaran L Zana J Zhang B Zhao

The reaction gammap --> pK+K- was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a Theta++ pentaquark, a narrow, doubly charged baryon state having strangeness S=+1 and isospin I=1, in the pK+ invariant mass spectrum. No statistically significant evidence of a Theta++ was found. Upper limits on the total and differential ...

Journal: :Behavioral neuroscience 2004
Amy L Griffin Yukiko Asaka Ryan D Darling Stephen D Berry

Hippocampal theta activity has been established as a key predictor of acquisition rate in rabbit (Orcytolagus cuniculus) classical conditioning. The current study used an online brain--computer interface to administer conditioning trials only in the explicit presence or absence of spontaneous theta activity in the hippocampus-dependent task of trace conditioning. The findings indicate that anim...

2015
Alex Tendler Shlomo Wagner

Rhythmic activity in the theta range is thought to promote neuronal communication between brain regions. In this study, we performed chronic telemetric recordings in socially behaving rats to monitor electrophysiological activity in limbic brain regions linked to social behavior. Social encounters were associated with increased rhythmicity in the high theta range (7-10 Hz) that was proportional...

Journal: :The European journal of neuroscience 2002
Ole Jensen Claudia D Tesche

Recent theoretical work has suggested that brain oscillations in the theta band are involved in active maintenance and recall of working memory representations. To test this theoretical framework we recorded neuromagnetic responses from 10 subjects performing the Sternberg task. Subjects were required to retain a list of 1, 3, 5 or 7 visually presented digits during a 3-s retention period. Duri...

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