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Highlights from the 30th Annual Meeting of the Society for the Neural Control of Movement.

Marta Russo, Nofar Ozeri-Engelhard, Kathleen Hupfeld, Caroline Nettekoven, Simon Thibault, Ehsan Sedaghat-Nejad, Daniela Buchwald, David Xing, Omid Zobeiri, Konstantina Kilteni, Scott T Albert, Giacomo Ariani,

J Neurophysiol (Journal of neurophysiology)
[2021, 126(4):967-975]

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A conversion from slow to fast memory in response to passive motion

Mousa Javidialsaadi, Scott Albert, Jinsung Wang,

When the same perturbation is experienced consecutively, learning is accelerated on the second attempt. This savings is a central property of sensorimotor adaptation. Current models suggest that these improvements in learning are due to changes in the brain’s sensitivity to error. Here, we tested whether these increases in error sensitivity ... Read more >>

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An implicit memory of errors limits human sensorimotor adaptation.

Scott T Albert, Jihoon Jang, Hannah R Sheahan, Lonneke Teunissen, Koenraad Vandevoorde, David J Herzfeld, Reza Shadmehr,

During extended motor adaptation, learning appears to saturate despite persistence of residual errors. This adaptation limit is not fixed but varies with perturbation variance; when variance is high, residual errors become larger. These changes in total adaptation could relate to either implicit or explicit learning systems. Here, we found that ... Read more >>

Nat Hum Behav (Nature human behaviour)
[2021, 5(7):920-934]

Cited: 2 times

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Competition between parallel sensorimotor learning systems

Scott Albert, Jihoon Jang, Adrian Haith, Gonzalo Lerner, Valeria Della-Maggiore, John Krakauer, Reza Shadmehr,

Sensorimotor adaptation benefits from learning in two parallel systems: one that has access to explicit knowledge, and another that relies on implicit, unconscious correction. However, it is unclear how these systems interact: does enhancing one system’s contributions, for example through instruction, impair the other, or do they learn independently? Here ... Read more >>

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Spontaneous recovery and the multiple timescales of human motor memory

Simon Orozco, Scott Albert, Reza Shadmehr,

In numerous paradigms, from fear conditioning to motor adaptation, memory exhibits a remarkable property: acquisition of a novel behavior followed by its extinction results in spontaneous recovery of the original behavior. A current model suggests that spontaneous recovery occurs because learning is supported by two different adaptive processes: one fast ... Read more >>

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The Origins of Anterograde Interference in Visuomotor Adaptation.

Gonzalo Lerner, Scott Albert, Pedro A Caffaro, Jorge I Villalta, Florencia Jacobacci, Reza Shadmehr, Valeria Della-Maggiore,

Anterograde interference refers to the negative impact of prior learning on the propensity for future learning. There is currently no consensus on whether this phenomenon is transient or long lasting, with studies pointing to an effect in the time scale of hours to days. These inconsistencies might be caused by ... Read more >>

Cereb Cortex (Cerebral cortex (New York, N.Y. : 1991))
[2020, 30(7):4000-4010]

Cited: 2 times

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Postural control of arm and fingers through integration of movement commands.

Scott T Albert, Alkis M Hadjiosif, Jihoon Jang, Andrew J Zimnik, Demetris S Soteropoulos, Stuart N Baker, Mark M Churchland, John W Krakauer, Reza Shadmehr,

Every movement ends in a period of stillness. Current models assume that commands that hold the limb at a target location do not depend on the commands that moved the limb to that location. Here, we report a surprising relationship between movement and posture in primates: on a within-trial basis, ... Read more >>

Elife (eLife)
[2020, 9:]

Cited: 4 times

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An implicit memory of errors limits human sensorimotor adaptation

Scott Albert, Jihoon Jang, Hannah Sheahan, Lonneke Teunissen, Koenraad Vandevoorde, Reza Shadmehr,

After extended practice, motor adaptation reaches a limit in which learning appears to stop, despite the fact that residual errors persist. What prevents the brain from eliminating the residual errors? Here we found that the adaptation limit was causally dependent on the second order statistics of the perturbation; when variance ... Read more >>

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The origins of anterograde interference in visuomotor adaptation

Gonzalo Lerner, Scott Albert, Pedro Caffaro, Jorge Villalta, Florencia Jacobacci, Reza Shadmehr, Valeria Della-Maggiore,

<h4>ABSTRACT</h4> Anterograde interference refers to the negative impact of prior learning on the propensity for future learning. Previous work has shown that subsequent adaptation to two perturbations of opposing sign, A and B , impairs performance in B . Here, we aimed to unveil the mechanism at the basis of ... Read more >>

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Holding the arm still through subcortical mathematical integration of cortical commands

Scott Albert, Alkis Hadjiosif, Jihoon Jang, John Krakauer, Reza Shadmehr,

A period of holding still follows every movement. It has been assumed that for the arm, moving and holding are functionally independent: movement is via an adaptive, feedback-dependent controller that generates commands to transport the arm, while holding is via setting of reflexes that produce a postural field at movement ... Read more >>

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Estimating properties of the fast and slow adaptive processes during sensorimotor adaptation.

Scott T Albert, Reza Shadmehr,

Experience of a prediction error recruits multiple motor learning processes, some that learn strongly from error but have weak retention and some that learn weakly from error but exhibit strong retention. These processes are not generally observable but are inferred from their collective influence on behavior. Is there a robust ... Read more >>

J Neurophysiol (Journal of neurophysiology)
[2018, 119(4):1367-1393]

Cited: 11 times

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An indeterminate nodule in the cirrhotic liver discovered by surveillance imaging is a prelude to malignancy.

Eliza W Beal, Scott Albert, Megan McNally, Lawrence A Shirley, James Hanje, Anthony J Michaels, Sylvester M Black, Mark Bloomston, Carl R Schmidt,

<h4>Background</h4>Surveillance imaging often shows indeterminate lesions in the cirrhotic liver, which may represent early hepatocellular carcinoma (HCC), dysplastic or regenerative nodules, or vascular shunts. The risk of HCC after identification of an indeterminate nodule is not well described.<h4>Methods</h4>We identified 252 patients with cirrhosis and at least one indeterminate nodule discovered ... Read more >>

J Surg Oncol (Journal of surgical oncology)
[2014, 110(8):967-969]

Cited: 7 times

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Classification of Indeterminate Melanocytic Lesions by MicroRNA Profiling.

Nicholas Latchana, Sara E Martin Del Campo, Valerie P Grignol, Jennifer R Clark, Scott P Albert, Jie Zhang, Lai Wei, Jennifer H Aldrink, Kathleen K Nicol, Mark A Ranalli, Sara B Peters, Alejandro Gru, Prashant Trihka, Philip R O Payne, J Harrison Howard, William E Carson,

<h4>Purpose</h4>Identification of indeterminate melanocytic skin lesions capable of neoplastic progression is suboptimal and may potentially result in unnecessary morbidity from surgery. MicroRNAs (miRs) may be useful in classifying indeterminate Spitz tumors as having high or low risk for malignant behavior.<h4>Methods</h4>RNA was extracted from paraffin-embedded tissues of benign nevi, benign Spitz ... Read more >>

Ann Surg Oncol (Annals of surgical oncology)
[2017, 24(2):347-354]

Cited: 5 times

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The Neural Feedback Response to Error As a Teaching Signal for the Motor Learning System.

Scott T Albert, Reza Shadmehr,

<h4>Unlabelled</h4>When we experience an error during a movement, we update our motor commands to partially correct for this error on the next trial. How does experience of error produce the improvement in the subsequent motor commands? During the course of an erroneous reaching movement, proprioceptive and visual sensory pathways not ... Read more >>

J Neurosci (The Journal of neuroscience : the official journal of the Society for Neuroscience)
[2016, 36(17):4832-4845]

Cited: 20 times

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Outcomes in patients with obstructive jaundice from metastatic colorectal cancer and implications for management.

Shawnn D Nichols, Scott Albert, Lawrence Shirley, Carl Schmidt, Sherif Abdel-Misih, Samer El-Dika, J Royce Groce, Christina Wu, Richard M Goldberg, Tanios Bekaii-Saab, Mark Bloomston,

<h4>Introduction</h4>Patients with metastatic colorectal cancer can develop jaundice from intrahepatic or extrahepatic causes. Currently, there is little data on the underlying causes and overall survival after onset of jaundice. The purpose of this study was to characterize the causes of jaundice and determine outcomes.<h4>Methods</h4>Six hundred twenty-nine patients treated for metastatic ... Read more >>

J Gastrointest Surg (Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract)
[2014, 18(12):2186-2191]

Cited: 2 times

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Influence of the renal artery ostium flow diverter on hemodynamics and atherogenesis.

Scott Albert, Robert S Balaban, Edward B Neufeld, Jenn Stroud Rossmann,

The structure and function of the renal artery ostium flow diverter on the caudal side of the renal branch point were previously reported; in this study, we further evaluate the diverter׳s possible functions. The protrusion of this structure into the abdominal aorta suggests that the diverter may preferentially direct blood ... Read more >>

J Biomech (Journal of biomechanics)
[2014, 47(7):1594-1602]

Cited: 4 times

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Chemically modified tetracycline 3 prevents acute respiratory distress syndrome in a porcine model of sepsis + ischemia/reperfusion-induced lung injury.

Shreyas K Roy, Brian D Kubiak, Scott P Albert, Christopher J Vieau, Louis Gatto, Lorne Golub, Hsi-Ming Lee, Suraj Sookhu, Yoram Vodovotz, Gary F Nieman,

Experimental pharmacotherapies for the acute respiratory distress syndrome (ARDS) have not met with success in the clinical realm. We hypothesized that chemically modified tetracycline 3 (CMT-3), an anti-inflammatory agent that blocks multiple proteases and cytokines, would prevent ARDS and injury in other organs in a clinically applicable, porcine model of ... Read more >>

Shock (Shock (Augusta, Ga.))
[2012, 37(4):424-432]

Cited: 16 times

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Developments in clinical neuropsychology: implications for school psychological services.

Michael J Cleary, Albert J Scott,

<h4>Background</h4>According to the 2000 Report of the Surgeon General's Conference on Children's Mental Health, a significant percentage of children and adolescents have emotional or behavioral problems serious enough to merit a mental health diagnosis. The No Child Left Behind Act of 2001 and the Individuals With Disabilities Education Improvement Act ... Read more >>

J Sch Health (The Journal of school health)
[2011, 81(1):1-7]

Cited: 2 times

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A clinically applicable porcine model of septic and ischemia/reperfusion-induced shock and multiple organ injury.

Brian D Kubiak, Scott P Albert, Louis A Gatto, Christopher J Vieau, Shreyas K Roy, Kathleen P Snyder, Kristopher G Maier, Gary F Nieman,

<h4>Background</h4>Although many sepsis treatments have shown efficacy in acute animal models, at present only activated protein C is effective in humans. The likely reason for this discrepancy is that most of the animal models used for preclinical testing do not accurately replicate the complex pathogenesis of human sepsis. Our objective ... Read more >>

J Surg Res (The Journal of surgical research)
[2011, 166(1):e59-69]

Cited: 20 times

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Peritoneal negative pressure therapy prevents multiple organ injury in a chronic porcine sepsis and ischemia/reperfusion model.

Brian D Kubiak, Scott P Albert, Louis A Gatto, Kathleen P Snyder, Kristopher G Maier, Christopher J Vieau, Shreyas Roy, Gary F Nieman,

Sepsis and hemorrhage can result in injury to multiple organs and is associated with an extremely high rate of mortality. We hypothesized that peritoneal negative pressure therapy (NPT) would reduce systemic inflammation and organ damage. Pigs (n = 12) were anesthetized and surgically instrumented for hemodynamic monitoring. Through a laparotomy, ... Read more >>

Shock (Shock (Augusta, Ga.))
[2010, 34(5):525-534]

Cited: 75 times

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Comparison of "open lung" modes with low tidal volumes in a porcine lung injury model.

Scott Albert, Brian D Kubiak, Christopher J Vieau, Shreyas K Roy, Joseph DiRocco, Louis A Gatto, Jennifer L Young, Sudipta Tripathi, Girish Trikha, Carlos Lopez, Gary F Nieman,

<h4>Background</h4>Ventilator strategies that maintain an "open lung" have shown promise in treating hypoxemic patients. We compared three "open lung" strategies with standard of care low tidal volume ventilation and hypothesized that each would diminish physiologic and histopathologic evidence of ventilator induced lung injury (VILI).<h4>Materials and methods</h4>Acute lung injury (ALI) was ... Read more >>

J Surg Res (The Journal of surgical research)
[2011, 166(1):e71-81]

Cited: 5 times

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Titration of mean airway pressure and FiO2 during high frequency oscillatory ventilation in a porcine model of acute lung injury.

Dominick Maggio, Benjamin Sadowitz, Christopher Vieau, Scott P Albert, Brian D Kubiak, Shreyas Roy, Louis A Gatto, Gary F Nieman,

<h4>Background</h4>High frequency oscillatory ventilation (HFOV) is frequently utilized for patients with acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). However, precise criteria to titrate mean airway pressure (mPaw) and FiO(2) as the patient's condition improves are lacking. We hypothesized that reducing mPaw and FiO(2) too quickly after reaching ... Read more >>

J Surg Res (The Journal of surgical research)
[2010, 164(1):e147-53]

Cited: 0 times

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An evaluation of multidetector computed tomography in detecting pancreatic injury: results of a multicenter AAST study.

Herb A Phelan, George C Velmahos, Gregory J Jurkovich, Randall S Friese, Joseph P Minei, Jay A Menaker, Allan Philp, Heather L Evans, Martin L Gunn, Alexander L Eastman, Susan E Rowell, Carrie E Allison, Ronald L Barbosa, Scott H Norwood, Malek Tabbara, Christopher J Dente, Matthew M Carrick, Matthew J Wall, Jim Feeney, Patrick J O'Neill, Gujjarappa Srinivas, Carlos V R Brown, Andrew C Reifsnyder, Moustafa O Hassan, Scott Albert, Jose L Pascual, Michelle Strong, Forrest O Moore, David A Spain, Mary-Anne Purtill, Byard Edwards, Jason Strauss, Rodney M Durham, Juan C Duchesne, Patrick Greiffenstein, C Clay Cothren,

<h4>Background</h4>Efforts to determine the suitability of low-grade pancreatic injuries for nonoperative management have been hindered by the inaccuracy of older computed tomography (CT) technology for detecting pancreatic injury (PI). This retrospective, multicenter American Association for the Surgery of Trauma-sponsored trial examined the sensitivity of newer 16- and 64-multidetector CT (MDCT) ... Read more >>

J Trauma (The Journal of trauma)
[2009, 66(3):641-6; discussion 646-7]

Cited: 36 times

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Transverse sinus thrombosis after internal jugular vein ligation.

Brian D Kubiak, Scott P Albert, Margaret A Tandoh, John B Fortune, Paul R G Cunningham,

<h4>Background</h4>Cerebral vein and dural sinus thrombosis is a rare condition with a wide range of causes and a highly variable presentation. It can lead to significant morbidity, but scant literature is available describing diagnosis and treatment when this occurs after ligation of the internal jugular vein.<h4>Objectives</h4>To discuss potential risk factors ... Read more >>

J Emerg Med (The Journal of emergency medicine)
[2012, 43(1):e5-9]

Cited: 2 times

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Loss of airway pressure during HFOV results in an extended loss of oxygenation: a retrospective animal study.

Brian D Kubiak, Scott P Albert, Louis A Gatto, Girish Trikha, Ola El-Zammar, Gary F Nieman,

<h4>Background</h4>Patients with acute respiratory distress syndrome (ARDS) are often ventilated with high airway pressure. Brief loss of airway pressure may lead to an extended loss of oxygenation. While using high frequency oscillatory ventilation (HFOV) in a porcine acute lung injury model, two animals became disconnected from the ventilator with subsequent ... Read more >>

J Surg Res (The Journal of surgical research)
[2010, 162(2):250-257]

Cited: 2 times

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