Works by Pogosyan, Alek

Results: 48

Subthalamic stimulation modulates context-dependent effects of beta bursts during fine motor control.

Published in:

Nature Communications, 2024, v. 15, n. 1, p. 1, doi. 10.1038/s41467-024-47555-3

By:

Bange, Manuel;
Gonzalez-Escamilla, Gabriel;
Herz, Damian M.;
Tinkhauser, Gerd;
Glaser, Martin;
Ciolac, Dumitru;
Pogosyan, Alek;
Kreis, Svenja L.;
Luhmann, Heiko J.;
Tan, Huiling;
Groppa, Sergiu

Publication type:

Article

Identifying and modulating distinct tremor states through peripheral nerve stimulation in Parkinsonian rest tremor.

Published in:

2021

By:

Arruda, Beatriz S.;
Reis, Carolina;
Sermon, James J.;
Pogosyan, Alek;
Brown, Peter;
Cagnan, Hayriye

Publication type:

journal article

High post-movement parietal low-beta power during rhythmic tapping facilitates performance in a stop task.

Published in:

European Journal of Neuroscience, 2016, v. 44, n. 5, p. 2202, doi. 10.1111/ejn.13328

By:

Fischer, Petra;
Tan, Huiling;
Pogosyan, Alek;
Brown, Peter;
Rousselet, Guillaume

Publication type:

Article

Changes in Functional Connectivity within the Rat Striatopallidal Axis during Global Brain Activation In Vivo.

Published in:

Journal of Neuroscience, 2006, v. 26, n. 23, p. 6318, doi. 10.1523/JNEUROSCI.0620-06.2006

By:

Magill, Peter J.;
Pogosyan, Alek;
Sharott, Andrew;
Csicsvari, Jozsef;
Bolam, J. Paul;
Brown, Peter

Publication type:

Article

Stimulation‐Evoked Resonant Neural Activity in the Subthalamic Nucleus Is Modulated by Sleep.

Published in:

Movement Disorders, 2025, v. 40, n. 2, p. 351, doi. 10.1002/mds.30063

By:

Wiest, Christoph;
Simpson, Thomas G.;
Pogosyan, Alek;
Hasegawa, Harutomo;
He, Shenghong;
Plazas, Fernando Rodriguez;
Wehmeyer, Laura;
Yassine, Sahar;
Guo, Xuanjun;
Shah, Rahul;
Merla, Anca;
Perera, Andrea;
Raslan, Ahmed;
O'Keeffe, Andrew;
Hart, Michael G.;
Morgante, Francesca;
Pereira, Erlick A.;
Ashkan, Keyoumars;
Tan, Huiling

Publication type:

Article

Subthalamic Nucleus Stimulation–Induced Local Field Potential Changes in Dystonia.

Published in:

Movement Disorders, 2023, v. 38, n. 3, p. 423, doi. 10.1002/mds.29302

By:

Wiest, Christoph;
Morgante, Francesca;
Torrecillos, Flavie;
Pogosyan, Alek;
He, Shenghong;
Baig, Fahd;
Bertaina, Ilaria;
Hart, Michael G.;
Edwards, Mark J.;
Pereira, Erlick A.;
Tan, Huiling

Publication type:

Article

Closed‐Loop Deep Brain Stimulation for Essential Tremor Based on Thalamic Local Field Potentials.

Published in:

Movement Disorders, 2021, v. 36, n. 4, p. 863, doi. 10.1002/mds.28513

By:

He, Shenghong;
Baig, Fahd;
Mostofi, Abteen;
Pogosyan, Alek;
Debarros, Jean;
Green, Alexander L.;
Aziz, Tipu Z.;
Pereira, Erlick;
Brown, Peter;
Tan, Huiling

Publication type:

Article

Directional local field potentials: A tool to optimize deep brain stimulation.

Published in:

2018

By:

Tinkhauser, Gerd;
Pogosyan, Alek;
Debove, Ines;
Nowacki, Andreas;
Shah, Syed Ahmar;
Seidel, Kathleen;
Tan, Huiling;
Brittain, John‐Stuart;
Petermann, Katrin;
di Biase, Lazzaro;
Oertel, Markus;
Pollo, Claudio;
Brown, Peter;
Schuepbach, Michael;
Brittain, John-Stuart

Publication type:

journal article

Subthalamic beta dynamics mirror Parkinsonian bradykinesia months after neurostimulator implantation.

Published in:

2017

By:

Steiner, Leon Amadeus;
Neumann, Wolf‐Julian;
Staub‐Bartelt, Franziska;
Herz, Damian M.;
Tan, Huiling;
Pogosyan, Alek;
Kuhn, Andrea A.;
Brown, Peter;
Neumann, Wolf-Julian;
Staub-Bartelt, Franziska

Publication type:

journal article

Adaptive DBS in a Parkinson's patient with chronically implanted DBS: A proof of principle.

Published in:

2017

By:

Piña‐Fuentes, Dan;
Little, Simon;
Oterdoom, Marinus;
Neal, Spencer;
Pogosyan, Alek;
Tijssen, Marina A. J.;
Laar, Teus;
Brown, Peter;
Dijk, J. Marc C.;
Beudel, Martijn;
Piña-Fuentes, Dan;
van Laar, Teus;
van Dijk, J Marc C

Publication type:

Case Study

Improvements in rate of development and magnitude of force with intense auditory stimuli in patients with Parkinson's disease.

Published in:

European Journal of Neuroscience, 2011, v. 34, n. 1, p. 124, doi. 10.1111/j.1460-9568.2011.07735.x

By:

Anzak, Anam;
Tan, Huiling;
Pogosyan, Alek;
Djamshidian, Atbin;
Ling, Helen;
Lees, Andrew;
Brown, Peter

Publication type:

Article

Involvement of the subthalamic nucleus in engagement with behaviourally relevant stimuli.

Published in:

European Journal of Neuroscience, 2009, v. 29, n. 5, p. 931, doi. 10.1111/j.1460-9568.2009.06635.x

By:

Sauleau, Paul;
Eusebio, Alexandre;
Thevathasan, Wesley;
Yarrow, Kielan;
Pogosyan, Alek;
Zrinzo, Ludvic;
Ashkan, Keyoumars;
Aziz, Tipu;
Vandenberghe, Wim;
Nuttin, Bart;
Brown, Peter

Publication type:

Article

Movement-related synchronization of gamma activity is lateralized in patients with dystonia.

Published in:

European Journal of Neuroscience, 2008, v. 27, n. 9, p. 2322, doi. 10.1111/j.1460-9568.2008.06203.x

By:

Brücke, Christof;
Kempf, Florian;
Kupsch, A.;
Schneider, Gerd‐Helge;
Krauss, Joachim K.;
Aziz, Tipu;
Yarrow, Kielan;
Pogosyan, Alek;
Brown, Peter;
Kühn, Andrea A.

Publication type:

Article

Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures.

Published in:

European Journal of Neuroscience, 2007, v. 25, n. 5, p. 1604, doi. 10.1111/j.1460-9568.2007.05417.x

By:

Klostermann, Fabian;
Nikulin, Vadim V.;
Kühn, Andrea Annette;
Marzinzik, Frank;
Wahl, Michael;
Pogosyan, Alek;
Kupsch, Andreas;
Schneider, Gerd‐Helge;
Brown, Peter;
Curio, Gabriel

Publication type:

Article

Reciprocal interactions between oscillatory activities of different frequencies in the subthalamic region of patients with Parkinson's disease.

Published in:

European Journal of Neuroscience, 2005, v. 22, n. 1, p. 257, doi. 10.1111/j.1460-9568.2005.04179.x

By:

Fogelson, Noa;
Pogosyan, Alek;
Kühn, Andrea A.;
Kupsch, Andreas;
Van Bruggen, Gerard;
Speelman, Hans;
Tijssen, Marina;
Quartarone, Angelo;
Insola, Angelo;
Mazzone, Paolo;
Di Lazzaro, Vincenzo;
Limousin, Patricia;
Brown, Peter

Publication type:

Article

Alternating Modulation of Subthalamic Nucleus Beta Oscillations during Stepping.

Published in:

Journal of Neuroscience, 2018, v. 38, n. 22, p. 5111, doi. 10.1523/JNEUROSCI.3596-17.2018

By:

Fischer, Petra;
Chiung Chu Chen;
Ya-Ju Chang;
Chien-Hung Yeh;
Pogosyan, Alek;
Herz, Damian M.;
Cheeran, Binith;
Green, Alexander L.;
Aziz, Tipu Z.;
Hyam, Jonathan;
Little, Simon;
Foltynie, Thomas;
Limousin, Patricia;
Zrinzo, Ludvic;
Harutomo Hasegawa;
Samuel, Michael;
Ashkan, Keyoumars;
Brown, Peter;
Huiling Tan

Publication type:

Article

Subthalamic Nucleus Local Field Potential Activity Helps Encode Motor Effort Rather Than Force in Parkinsonism.

Published in:

Journal of Neuroscience, 2015, v. 35, n. 15, p. 5941, doi. 10.1523/JNEUROSCI.4609-14.2015

By:

Huiling Tan;
Pogosyan, Alek;
Ashkan, Keyoumars;
Cheeran, Binith;
FitzGerald, James J.;
Green, Alexander L.;
Aziz, Tipu;
Foltynie, Thomas;
Limousin, Patricia;
Zrinzo, Ludvic;
Brown, Peter

Publication type:

Article

Human Subthalamic Nucleus in Movement Error Detection and Its Evaluation during Visuomotor Adaptation.

Published in:

Journal of Neuroscience, 2014, v. 34, n. 50, p. 16744, doi. 10.1523/JNEUROSCI.3414-14.2014

By:

Tan, Huiling;
Zavala, Baltazar;
Pogosyan, Alek;
Ashkan, Keyoumars;
Zrinzo, Ludvic;
Foltynie, Thomas;
Limousin, Patricia;
Brown, Peter

Publication type:

Article

Dynamic modulation of subthalamic nucleus activity facilitates adaptive behavior.

Published in:

PLoS Biology, 2023, v. 21, n. 6, p. 1, doi. 10.1371/journal.pbio.3002140

By:

Herz, Damian M.;
Bange, Manuel;
Gonzalez-Escamilla, Gabriel;
Auer, Miriam;
Muthuraman, Muthuraman;
Glaser, Martin;
Bogacz, Rafal;
Pogosyan, Alek;
Tan, Huiling;
Groppa, Sergiu;
Brown, Peter

Publication type:

Article

Beta burst dynamics in Parkinson's disease OFF and ON dopaminergic medication.

Published in:

2017

By:

Tinkhauser, Gerd;
Pogosyan, Alek;
Huiling Tan;
Herz, Damian M.;
Kühn, Andrea A.;
Brown, Peter;
Tan, Huiling

Publication type:

journal article

The modulatory effect of adaptive deep brain stimulation on beta bursts in Parkinson's disease.

Published in:

2017

By:

Tinkhauser, Gerd;
Pogosyan, Alek;
Little, Simon;
Beudel, Martijn;
Herz, Damian M.;
Huiling Tan;
Brown, Peter;
Tan, Huiling

Publication type:

journal article

Stimulating at the right time: phase-specific deep brain stimulation.

Published in:

2017

By:

Cagnan, Hayriye;
Pedrosa, David;
Little, Simon;
Pogosyan, Alek;
Cheeran, Binith;
Aziz, Tipu;
Green, Alexander;
Fitzgerald, James;
Foltynie, Thomas;
Limousin, Patricia;
Zrinzo, Ludvic;
Hariz, Marwan;
Friston, Karl J.;
Denison, Timothy;
Brown, Peter

Publication type:

journal article

Subthalamic nucleus activity optimizes maximal effort motor responses in Parkinson's disease.

Published in:

2012

By:

Anzak A;
Tan H;
Pogosyan A;
Foltynie T;
Limousin P;
Zrinzo L;
Hariz M;
Ashkan K;
Bogdanovic M;
Green AL;
Aziz T;
Brown P;
Anzak, Anam;
Tan, Huiling;
Pogosyan, Alek;
Foltynie, Thomas;
Limousin, Patricia;
Zrinzo, Ludvic;
Hariz, Marwan;
Ashkan, Keyoumars

Publication type:

journal article

Subthalamic nucleus activity optimizes maximal effort motor responses in Parkinson’s disease.

Published in:

Brain: A Journal of Neurology, 2012, v. 135, n. 9, p. 2766, doi. 10.1093/brain/aws183

By:

Anzak, Anam;
Tan, Huiling;
Pogosyan, Alek;
Foltynie, Thomas;
Limousin, Patricia;
Zrinzo, Ludvic;
Hariz, Marwan;
Ashkan, Keyoumars;
Bogdanovic, Marko;
Green, Alexander L.;
Aziz, Tipu;
Brown, Peter

Publication type:

Article

Alpha oscillations in the pedunculopontine nucleus correlate with gait performance in parkinsonism.

Published in:

Brain: A Journal of Neurology, 2012, v. 135, n. 1, p. 148, doi. 10.1093/brain/awr315

By:

Thevathasan, Wesley;
Pogosyan, Alek;
Hyam, Jonathan A.;
Jenkinson, Ned;
Foltynie, Tom;
Limousin, Patricia;
Bogdanovic, Marko;
Zrinzo, Ludvic;
Green, Alexander L.;
Aziz, Tipu Z.;
Brown, Peter

Publication type:

Article

A block to pre-prepared movement in gait freezing, relieved by pedunculopontine nucleus stimulation.

Published in:

Brain: A Journal of Neurology, 2011, v. 134, n. 7, p. 2085, doi. 10.1093/brain/awr131

By:

Thevathasan, Wesley;
Pogosyan, Alek;
Hyam, Jonathan A.;
Jenkinson, Ned;
Bogdanovic, Marko;
Coyne, Terry J.;
Silburn, Peter A.;
Aziz, Tipu Z.;
Brown, Peter

Publication type:

Article

Resonance in subthalamo-cortical circuits in Parkinson's disease.

Published in:

2009

By:

Eusebio A;
Pogosyan A;
Wang S;
Averbeck B;
Gaynor LD;
Cantiniaux S;
Witjas T;
Limousin P;
Azulay JP;
Brown P;
Eusebio, Alexandre;
Pogosyan, Alek;
Wang, Shouyan;
Averbeck, Bruno;
Gaynor, Louise Doyle;
Cantiniaux, Stéphanie;
Witjas, Tatiana;
Limousin, Patricia;
Azulay, Jean-Philippe;
Brown, Peter

Publication type:

journal article

Resonance in subthalamo-cortical circuits in Parkinsons disease.

Published in:

Brain: A Journal of Neurology, 2009, v. 132, n. 8, p. 2139, doi. 10.1093/brain/awp079

By:

Eusebio, Alexandre;
Pogosyan, Alek;
Wang, Shouyan;
Averbeck, Bruno;
Gaynor, Louise Doyle;
Cantiniaux, Stéphanie;
Witjas, Tatiana;
Limousin, Patricia;
Azulay, Jean-Philippe;
Brown, Peter

Publication type:

Article

Modulation of beta oscillations in the subthalamic area during motor imagery in Parkinson's disease.

Published in:

Brain: A Journal of Neurology, 2006, v. 129, n. 3, p. 695, doi. 10.1093/brain/awh715

By:

Andrea A. Kühn;
Louise Doyle;
Alek Pogosyan;
Kielan Yarrow;
Andreas Kupsch;
Gerd-Helge Schneider;
Marwan I. Hariz;
Thomas Trottenberg;
Peter Brown

Publication type:

Article

Cortico-cortical coupling in Parkinson's disease and its modulation by therapy.

Published in:

Brain: A Journal of Neurology, 2005, v. 128, n. 6, p. 1277, doi. 10.1093/brain/awh480

By:

Paul Silberstein;
Alek Pogosyan;
Andrea A. Kühn;
Gary Hotton;
Stephen Tisch;
Andreas Kupsch;
Patricia Dowsey-Limousin;
Marwan I. Hariz;
Peter Brown

Publication type:

Article

The Cumulative Effect of Transient Synchrony States on Motor Performance in Parkinson's Disease.

Published in:

Journal of Neuroscience, 2020, v. 40, n. 7, p. 1571, doi. 10.1523/JNEUR0SG.1975-19.2019

By:

Tinkhauser, Gerd;
Torrecillos, Flavie;
Pogosyan, Alek;
Mostofi, Abteen;
Bange, Manuel;
Fischer, Petra;
Huiling Tan;
Harutomo Hasegawa;
Glaser, Martin;
Muthuraman, Muthuraman;
Groppa, Sergiu;
Ashkan, Keyoumars;
Pereira, Erlick A.;
Brown, Peter

Publication type:

Article

Motor Cortex Inputs at the Optimum Phase of Beta Cortical Oscillations Undergo More Rapid and Less Variable Corticospinal Propagation.

Published in:

Journal of Neuroscience, 2020, v. 40, n. 2, p. 369, doi. 10.1523/JNEUROSCI.1953-19.2019

By:

Torrecillos, Flavie;
Falato, Emma;
Pogosyan, Alek;
West, Timothy;
Di Lazzaro, Vincenzo;
Brown, Peter

Publication type:

Article

The aperiodic exponent of subthalamic field potentials reflects excitation/inhibition balance in Parkinsonism.

Published in:

eLife, 2023, p. 1, doi. 10.7554/eLife.82467

By:

Wiest, Christoph;
Torrecillos, Flavie;
Pogosyan, Alek;
Bange, Manuel;
Muthuraman, Muthuraman;
Groppa, Sergiu;
Hulse, Natasha;
Hasegawa, Harutomo;
Ashkan, Keyoumars;
Baig, Fahd;
Morgante, Francesca;
Pereira, Erlick A.;
Mallet, Nicolas;
Magill, Peter J.;
Brown, Peter;
Sharott, Andrew;
Huiling Tan

Publication type:

Article

Essential tremor amplitude modulation by median nerve stimulation.

Published in:

Scientific Reports, 2021, v. 11, n. 1, p. 1, doi. 10.1038/s41598-021-96660-6

By:

Reis, Carolina;
Arruda, Beatriz S.;
Pogosyan, Alek;
Brown, Peter;
Cagnan, Hayriye

Publication type:

Article

Phase Dependency of the Human Primary Motor Cortex and Cholinergic Inhibition Cancelation During Beta tACS.

Published in:

Cerebral Cortex, 2016, v. 26, n. 10, p. 3977, doi. 10.1093/cercor/bhw245

By:

Guerra, Andrea;
Pogosyan, Alek;
Nowak, Magdalena;
Huiling Tan;
Ferreri, Florinda;
Di Lazzaro, Vincenzo;
Brown, Peter

Publication type:

Article

Bilateral Functional Connectivity of the Basal Ganglia in Patients with Parkinson’s Disease and Its Modulation by Dopaminergic Treatment.

Published in:

PLoS ONE, 2013, v. 8, n. 12, p. 1, doi. 10.1371/journal.pone.0082762

By:

Little, Simon;
Tan, Huiling;
Anzak, Anam;
Pogosyan, Alek;
Kühn, Andrea;
Brown, Peter

Publication type:

Article

Parkinsonian Beta Oscillations in the External Globus Pallidus and Their Relationship with Subthalamic Nucleus Activity.

Published in:

Journal of Neuroscience, 2008, v. 28, n. 52, p. 14245, doi. 10.1523/JNEUROSCI.4199-08.2008

By:

Mallet, Nicolas;
Pogosyan, Alek;
Márton, László F.;
Bolam, J. Paul;
Brown, Peter;
Magill, Peter J.

Publication type:

Article

High-Frequency Stimulation of the Subthalamic Nucleus Suppresses Oscillatory β Activity in Patients with Parkinson's Disease in Parallel with Improvement in Motor Performance.

Published in:

Journal of Neuroscience, 2008, v. 28, n. 24, p. 6165, doi. 10.1523/JNEUROSCI.0282-08.2008

By:

Kühn, Andrea A.;
Kempf, Florian;
Brücke, Christof;
Doyle, Louise Gaynor;
Martinez-Torres, Irene;
Pogosyan, Alek;
Trottenberg, Thomas;
Kupsch, Andreas;
Schneider, Gerd-Helge;
Hariz, Marwan I.;
Vandenberghe, Wim;
Nuttin, Bart;
Brown, Peter

Publication type:

Article

Disrupted Dopamine Transmission and the Emergence of Exaggerated Beta Oscillations in Subthalamic Nucleus and Cerebral Cortex.

Published in:

Journal of Neuroscience, 2008, v. 28, n. 18, p. 4795, doi. 10.1523/JNEUROSCI.0123-08.2008

By:

Mallet, Nicolas;
Pogosyan, Alek;
Sharott, Andrew;
Csicsvari, Jozsef;
Bolam, J. Paul;
Brown, Peter;
Magill, Peter J.

Publication type:

Article

Patterns of Bidirectional Communication between Cortex and Basal Ganglia during Movement in Patients with Parkinson Disease.

Published in:

Journal of Neuroscience, 2008, v. 28, n. 12, p. 3008, doi. 10.1523/JNEUROSCI.5295-07.2008

By:

Lalo, Elodie;
Thobois, Stéphane;
Sharott, Andrew;
Polo, Gustavo;
Mertens, Patrick;
Pogosyan, Alek;
Brown, Peter

Publication type:

Article

A torque-based method demonstrates increased rigidity in Parkinson's disease during low-frequency stimulation.

Published in:

Experimental Brain Research, 2012, v. 219, n. 4, p. 499, doi. 10.1007/s00221-012-3107-7

By:

Little, Simon;
Joundi, Raed;
Tan, Huiling;
Pogosyan, Alek;
Forrow, Beth;
Joint, Carole;
Green, Alexander;
Aziz, Tipu;
Brown, Peter

Publication type:

Article

Doing better than your best: loud auditory stimulation yields improvements in maximal voluntary force.

Published in:

Experimental Brain Research, 2011, v. 208, n. 2, p. 237, doi. 10.1007/s00221-010-2474-1

By:

Anzak, Anam;
Tan, Huiling;
Pogosyan, Alek;
Brown, Peter

Publication type:

Article

Cortico-cortical coupling patterns during dual task performance.

Published in:

Experimental Brain Research, 2004, v. 157, n. 1, p. 79, doi. 10.1007/s00221-003-1822-9

By:

Serrien, Deborah J.;
Pogosyan, Alek H.;
Brown, Peter

Publication type:

Article

Influence of working memory on patterns of motor related cortico-cortical coupling.

Published in:

Experimental Brain Research, 2004, v. 155, n. 2, p. 204, doi. 10.1007/s00221-003-1720-1

By:

Serrien, Deborah J.;
Pogosyan, Alek H.;
Brown, Peter

Publication type:

Article

Anticipatory cortico-cortical interactions: switching the task configuration between effectors.

Published in:

Experimental Brain Research, 2004, v. 154, n. 3, p. 359, doi. 10.1007/s00221-003-1667-2

By:

Serrien, Deborah J.;
Pogosyan, Alek H.;
Cassidy, Michael J.;
Brown, Peter

Publication type:

Article

Subthalamic beta-targeted neurofeedback speeds up movement initiation but increases tremor in Parkinsonian patients.

Published in:

eLife, 2020, p. 1, doi. 10.7554/eLife.60979

By:

Shenghong He;
Mostofi, Abteen;
Syed, Emilie;
Torrecillos, Flavie;
Tinkhauser, Gerd;
Fischer, Petra;
Pogosyan, Alek;
Hasegawa, Harutomo;
Yuanqing Li;
Ashkan, Keyoumars;
Pereira, Erlick;
Brown, Peter;
Huiling Tan

Publication type:

Article

Decoding gripping force based on local field potentials recorded from subthalamic nucleus in humans.

Published in:

eLife, 2016, p. 1, doi. 10.7554/eLife.19089

By:

Tan, Huiling;
Pogosyan, Alek;
Ashkan, Keyoumars;
Green, Alexander L.;
Aziz, Tipu;
Foltynie, Thomas;
Limousin, Patricia;
Zrinzo, Ludvic;
Hariz, Marwan;
Brown, Peter

Publication type:

Article

Beta-triggered adaptive deep brain stimulation during reaching movement in Parkinson's disease.

Published in:

Brain: A Journal of Neurology, 2023, v. 146, n. 12, p. 5015, doi. 10.1093/brain/awad233

By:

He, Shenghong;
Baig, Fahd;
Merla, Anca;
Torrecillos, Flavie;
Perera, Andrea;
Wiest, Christoph;
Debarros, Jean;
Benjaber, Moaad;
Hart, Michael G;
Ricciardi, Lucia;
Morgante, Francesca;
Hasegawa, Harutomo;
Samuel, Michael;
Edwards, Mark;
Denison, Timothy;
Pogosyan, Alek;
Ashkan, Keyoumars;
Pereira, Erlick;
Tan, Huiling

Publication type:

Article