Search Results - "Sheth, Sameer A"

Variability of white matter anatomy in the subcallosal cingulate area by Tsolaki, Evangelia, Sheth, Sameer A., Pouratian, Nader

“…The subcallosal cingulate (SCC) area is a putative hub in the brain network underlying depression. Deep brain stimulation (DBS) targeting a particular…”
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Normative vs. patient-specific brain connectivity in deep brain stimulation by Wang, Qiang, Akram, Harith, Muthuraman, Muthuraman, Gonzalez-Escamilla, Gabriel, Sheth, Sameer A., Oxenford, Simón, Yeh, Fang-Cheng, Groppa, Sergiu, Vanegas-Arroyave, Nora, Zrinzo, Ludvic, Li, Ningfei, Kühn, Andrea, Horn, Andreas

“…Brain connectivity profiles seeding from deep brain stimulation (DBS) electrodes have emerged as informative tools to estimate outcome variability across DBS…”
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Functionally distinct high and low theta oscillations in the human hippocampus by Goyal, Abhinav, Miller, Jonathan, Qasim, Salman E., Watrous, Andrew J., Zhang, Honghui, Stein, Joel M., Inman, Cory S., Gross, Robert E., Willie, Jon T., Lega, Bradley, Lin, Jui-Jui, Sharan, Ashwini, Wu, Chengyuan, Sperling, Michael R., Sheth, Sameer A., McKhann, Guy M., Smith, Elliot H., Schevon, Catherine, Jacobs, Joshua

“…Based on rodent models, researchers have theorized that the hippocampus supports episodic memory and navigation via the theta oscillation, a ~4–10 Hz rhythm…”
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Deep brain stimulation of the dorsal anterior cingulate cortex for the treatment of chronic neuropathic pain by Russo, Jennifer F, Sheth, Sameer A

“…Chronic neuropathic pain is estimated to affect 3%-4.5% of the worldwide population. It is associated with significant loss of productive time, withdrawal from…”
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Direct Electrical Stimulation of the Human Entorhinal Region and Hippocampus Impairs Memory by Jacobs, Joshua, Miller, Jonathan, Lee, Sang Ah, Coffey, Tom, Watrous, Andrew J., Sperling, Michael R., Sharan, Ashwini, Worrell, Gregory, Berry, Brent, Lega, Bradley, Jobst, Barbara C., Davis, Kathryn, Gross, Robert E., Sheth, Sameer A., Ezzyat, Youssef, Das, Sandhitsu R., Stein, Joel, Gorniak, Richard, Kahana, Michael J., Rizzuto, Daniel S.

“…Deep brain stimulation (DBS) has shown promise for treating a range of brain disorders and neurological conditions. One recent study showed that DBS in the…”
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Functionally Distinct Gamma Range Activity Revealed by Stimulus Tuning in Human Visual Cortex by Bartoli, Eleonora, Bosking, William, Chen, Yvonne, Li, Ye, Sheth, Sameer A., Beauchamp, Michael S., Yoshor, Daniel, Foster, Brett L.

“…Neocortical gamma activity has long been hypothesized as a mechanism for synchronizing brain regions to support visual perception and cognition more broadly…”
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Clinical applications of magnetic resonance imaging based functional and structural connectivity by Wu, Chengyuan, Ferreira, Francisca, Fox, Michael, Harel, Noam, Hattangadi-Gluth, Jona, Horn, Andreas, Jbabdi, Saad, Kahan, Joshua, Oswal, Ashwini, Sheth, Sameer A., Tie, Yanmei, Vakharia, Vejay, Zrinzo, Ludvic, Akram, Harith

“…•Connectomics can help treatment planning in epilepsy and neuro-oncology.•Tractography can help motor thalamus targeting and has potential with other…”
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Direct Brain Stimulation Modulates Encoding States and Memory Performance in Humans by Ezzyat, Youssef, Kragel, James E., Burke, John F., Levy, Deborah F., Lyalenko, Anastasia, Wanda, Paul, O’Sullivan, Logan, Hurley, Katherine B., Busygin, Stanislav, Pedisich, Isaac, Sperling, Michael R., Worrell, Gregory A., Kucewicz, Michal T., Davis, Kathryn A., Lucas, Timothy H., Inman, Cory S., Lega, Bradley C., Jobst, Barbara C., Sheth, Sameer A., Zaghloul, Kareem, Jutras, Michael J., Stein, Joel M., Das, Sandhitsu R., Gorniak, Richard, Rizzuto, Daniel S., Kahana, Michael J.

“…People often forget information because they fail to effectively encode it. Here, we test the hypothesis that targeted electrical stimulation can modulate…”
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Lateralized hippocampal oscillations underlie distinct aspects of human spatial memory and navigation by Miller, Jonathan, Watrous, Andrew J., Tsitsiklis, Melina, Lee, Sang Ah, Sheth, Sameer A., Schevon, Catherine A., Smith, Elliot H., Sperling, Michael R., Sharan, Ashwini, Asadi-Pooya, Ali Akbar, Worrell, Gregory A., Meisenhelter, Stephen, Inman, Cory S., Davis, Kathryn A., Lega, Bradley, Wanda, Paul A., Das, Sandhitsu R., Stein, Joel M., Gorniak, Richard, Jacobs, Joshua

“…The hippocampus plays a vital role in various aspects of cognition including both memory and spatial navigation. To understand electrophysiologically how the…”
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MRI-localized biopsies reveal subtype-specific differences in molecular and cellular composition at the margins of glioblastoma by Gill, Brian J., Pisapia, David J., Malone, Hani R., Goldstein, Hannah, Lei, Liang, Sonabend, Adam, Yun, Jonathan, Samanamud, Jorge, Sims, Jennifer S., Banu, Matei, Dovas, Athanassios, Teich, Andrew F., Sheth, Sameer A., McKhann, Guy M., Sisti, Michael B., Bruce, Jeffrey N., Sims, Peter A., Canoll, Peter

“…Glioblastomas (GBMs) diffusely infiltrate the brain, making complete removal by surgical resection impossible. The mixture of neoplastic and nonneoplastic…”
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Aggressive resection at the infiltrative margins of glioblastoma facilitated by intraoperative fluorescein guidance by Neira, Justin A, Ung, Timothy H, Sims, Jennifer S, Malone, Hani R, Chow, Daniel S, Samanamud, Jorge L, Zanazzi, George J, Guo, Xiaotao, Bowden, Stephen G, Zhao, Binsheng, Sheth, Sameer A, McKhann, 2nd, Guy M, Sisti, Michael B, Canoll, Peter, D'Amico, Randy S, Bruce, Jeffrey N

“…OBJECTIVE Extent of resection is an important prognostic factor in patients undergoing surgery for glioblastoma (GBM). Recent evidence suggests that…”
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Computational modeling and minimization of unintended neuronal excitation in a LIFU stimulation by Fan, Boqiang, Goodman, Wayne, Cho, Raymond Y., Sheth, Sameer A., Bouchard, Richard R., Aazhang, Behnaam

“…The neuromodulation effect of low-intensity focused ultrasound (LIFU) is highly target-specific. Unintended off-target neuronal excitation can be elicited when…”
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Deep Brain Stimulation for Obsessive Compulsive Disorder: Evolution of Surgical Stimulation Target Parallels Changing Model of Dysfunctional Brain Circuits by Karas, Patrick J, Lee, Sungho, Jimenez-Shahed, Joohi, Goodman, Wayne K, Viswanathan, Ashwin, Sheth, Sameer A

“…Obsessive compulsive disorder (OCD) is a common, disabling psychiatric disease characterized by persistent, intrusive thoughts and ritualistic, repetitive…”
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Craniotomy and Survival for Primary Central Nervous System Lymphoma by Rae, Ali I, Mehta, Amol, Cloney, Michael, Kinslow, Connor J, Wang, Tony J C, Bhagat, Govind, Canoll, Peter D, Zanazzi, George J, Sisti, Michael B, Sheth, Sameer A, Connolly, E Sander, McKhann, Guy M, Bruce, Jeffrey N, Iwamoto, Fabio M, Sonabend, Adam M

“…Abstract BACKGROUND Cytoreductive surgery is considered controversial for primary central nervous system lymphoma (PCNSL). OBJECTIVE To investigate survival…”
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Stability of ripple events during task engagement in human hippocampus by Chen, Yvonne Y., Aponik-Gremillion, Lyndsey, Bartoli, Eleonora, Yoshor, Daniel, Sheth, Sameer A., Foster, Brett L.

“…High-frequency activity bursts in the hippocampus, known as ripples, are thought to support memory consolidation during “offline” states, such as sleep…”
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The effects of direct brain stimulation in humans depend on frequency, amplitude, and white-matter proximity by Mohan, Uma R., Watrous, Andrew J., Miller, Jonathan F., Lega, Bradley C., Sperling, Michael R., Worrell, Gregory A., Gross, Robert E., Zaghloul, Kareem A., Jobst, Barbara C., Davis, Kathryn A., Sheth, Sameer A., Stein, Joel M., Das, Sandhitsu R., Gorniak, Richard, Wanda, Paul A., Rizzuto, Daniel S., Kahana, Michael J., Jacobs, Joshua

“…Researchers have used direct electrical brain stimulation to treat a range of neurological and psychiatric disorders. However, for brain stimulation to be…”
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Neurosurgery for schizophrenia: an update on pathophysiology and a novel therapeutic target by Mikell, Charles B, Sinha, Saurabh, Sheth, Sameer A

“…The main objectives of this review were to provide an update on the progress made in understanding specific circuit abnormalities leading to psychotic symptoms…”
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Functional neuroimaging of belief, disbelief, and uncertainty by Harris, Sam, Sheth, Sameer A., Cohen, Mark S.

“…Objective The difference between believing and disbelieving a proposition is one of the most potent regulators of human behavior and emotion. When one accepts…”
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Spontaneous neuronal oscillations in the human insula are hierarchically organized traveling waves by Das, Anup, Myers, John, Mathura, Raissa, Shofty, Ben, Metzger, Brian A, Bijanki, Kelly, Wu, Chengyuan, Jacobs, Joshua, Sheth, Sameer A

“…The insula plays a fundamental role in a wide range of adaptive human behaviors, but its electrophysiological dynamics are poorly understood. Here we used…”
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Similar patterns of neural activity predict memory function during encoding and retrieval by Kragel, James E., Ezzyat, Youssef, Sperling, Michael R., Gorniak, Richard, Worrell, Gregory A., Berry, Brent M., Inman, Cory, Lin, Jui-Jui, Davis, Kathryn A., Das, Sandhitsu R., Stein, Joel M., Jobst, Barbara C., Zaghloul, Kareem A., Sheth, Sameer A., Rizzuto, Daniel S., Kahana, Michael J.

“…Neural networks that span the medial temporal lobe (MTL), prefrontal cortex, and posterior cortical regions are essential to episodic memory function in…”
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