Search Results - "Crammond, D J"

Sensing-enabled hippocampal deep brain stimulation in idiopathic nonhuman primate epilepsy by Lipski, W J, DeStefino, V J, Stanslaski, S R, Antony, A R, Crammond, D J, Cameron, J L, Richardson, R M

“…Epilepsy is a debilitating condition affecting 1% of the population worldwide. Medications fail to control seizures in at least 30% of patients, and deep brain…”
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Subthalamic nucleus neurons encode syllable sequence and phonetic characteristics during speech by Lipski, W J, Bush, A, Chrabaszcz, A, Crammond, D J, Fiez, J A, Turner, R S, Richardson, R M

“…Speech is a complex behavior that can be used to study unique contributions of the basal ganglia to motor control in the human brain. Computational models…”
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Motor imagery: never in your wildest dream by Crammond, Donald J

“…Research into motor imagery, the mental rehearsal of a motor act, is providing new insights into the representation of willed action. Results support the…”
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Articulatory Gain Predicts Motor Cortex and Subthalamic Nucleus Activity During Speech by Dastolfo-Hromack, C, Bush, A, Chrabaszcz, A, Alhourani, A, Lipski, W, Wang, D, Crammond, D J, Shaiman, S, Dickey, M W, Holt, L L, Turner, R S, Fiez, J A, Richardson, R M

“…Abstract Speaking precisely is important for effective verbal communication, and articulatory gain is one component of speech motor control that contributes to…”
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Modulation of preparatory neuronal activity in dorsal premotor cortex due to stimulus-response compatibility by Crammond, D J, Kalaska, J F

“…1. Neuronal activity was recorded in the dorsal premotor cortex (PMd) of two monkeys performing a multidirectional, instructed-delay (ID) reaching task in…”
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Simultaneously recorded subthalamic and cortical LFPs reveal different lexicality effects during reading aloud by Chrabaszcz, A., Wang, D., Lipski, W.J., Bush, A., Crammond, D.J., Shaiman, S., Dickey, M.W., Holt, L.L., Turner, R.S., Fiez, J.A., Richardson, R.M.

“…Many language functions are traditionally assigned to cortical brain areas, leaving the contributions of subcortical structures to language processing largely…”
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Differential relation of discharge in primary motor cortex and premotor cortex to movements versus actively maintained postures during a reaching task by CRAMMOND, D. J, KALASKA, J. F

“…The activity of cells in primary motor cortex (MI) and dorsal premotor cortex (PMd) were compared during reaching movements in a reaction-time (RT) task,…”
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Cerebral Cortical Mechanisms of Reaching Movements by Kalaska, John F., Crammond, Donald J.

“…Because reaching movements have a clear objective-to bring the hand to the spatial location of an object-they are well suited to study how the central nervous…”
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Neural Activity in Primary Motor and Dorsal Premotor Cortex In Reaching Tasks With the Contralateral Versus Ipsilateral Arm by Cisek, Paul, Crammond, Donald J, Kalaska, John F

“…Centre de Recherche en Sciences Neurologiques, Département de Physiologie, Université de Montreal, C.P. 6128 Succursale Centre-ville, Montreal, Quebec H3C 3J7,…”
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Neuronal activity in primate parietal cortex area 5 varies with intended movement direction during an instructed-delay period by CRAMMOND, D. J, KALASKA, J. F

“…A monkey was trained to make arm movements to visual targets immediately after presentation of a GO signal, either in a visual reaction-time paradigm (CONTROL…”
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Prior Information in Motor and Premotor Cortex: Activity During the Delay Period and Effect on Pre-Movement Activity by Crammond, Donald J, Kalaska, John F

“…Centre de recherche en sciences neurologiques, Département de Physiologie, Université de Montréal, Montreal, Quebec H3C 3J7, Canada Crammond, Donald J. and…”
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Deciding not to GO: neuronal correlates of response selection in a GO/NOGO task in primate premotor and parietal cortex by Kalaska, J F, Crammond, D J

“…Monkeys performed reaching movements in two opposite directions in a symmetrically rewarded GO/NOGO task with an instructed-delay period. Instructional cues…”
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Neuronal correlates in posterior parietal lobe of the expectation of events by MacKay, W A, Crammond, D J

“…During studies of response properties of single units in the posterior parietal cortex of 6 awake monkeys, 168 neurons were encountered (7.1% of examined…”
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Measurements of human forearm viscoelasticity by MacKay, W A, Crammond, D J, Kwan, H C, Murphy, J T

“…In human subjects, stiffness of the relaxed elbow was measured by three methods, using a forearm manipulandum coupled to a.d.c. torque motor. Elbow stiffness…”
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Human motor cortical activity recorded with Micro-ECoG electrodes, during individual finger movements by Wang, W., Degenhart, A.D., Collinger, J.L., Vinjamuri, R., Sudre, G.P., Adelson, P.D., Holder, D.L., Leuthardt, E.C., Moran, D.W., Boninger, M.L., Schwartz, A.B., Crammond, D.J., Tyler-Kabara, E.C., Weber, D.J.

“…In this study human motor cortical activity was recorded with a customized micro-ECoG grid during individual finger movements. The quality of the recorded…”
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Microvascular Decompression for Hemifacial Spasm: Evaluating Outcome Prognosticators Including the Value of Intraoperative Lateral Spread Response Monitoring and Clinical Characteristics in 293 Patients by Thirumala, Parthasarathy D, Shah, Aalap C, Nikonow, Tara N, Habeych, Miguel E, Balzer, Jeffrey R, Crammond, Donald J, Burkhart, Lois, Chang, Yue-Fang, Gardner, Paul, Kassam, Amin B, Horowitz, Michael B

“…Hemifacial spasm is a socially disabling condition that manifests as intermittent involuntary twitching of the eyelid and progresses to muscle contractions of…”
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A fuzzy logic model for hand posture control using human cortical activity recorded by micro-ECog electrodes by Vinjamuri, R., Weber, D.J., Degenhart, A.D., Collinger, J.L., Sudre, G.P., Adelson, P.D., Holder, D.L., Boninger, M.L., Schwartz, A.B., Crammond, D.J., Tyler-Kabara, E.C., Wang, W.

“…This paper presents a fuzzy logic model to decode the hand posture from electro-corticographic (ECoG) activity of the motor cortical areas. One subject was…”
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Neurophysiologic Intraoperative Monitoring of Olfactory and Optic Nerves by Thirumala, Parthasarathy D, Habeych, Miguel E, Crammond, Donald J, Balzer, Jeffrey R

“…SUMMARYOlfaction and vision are two sensory functions that can be lost during surgery. Intraoperative neurophysiologic monitoring can be used to monitor the…”
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Extraction of Sources of Tremor in Hand Movements of Patients With Movement Disorders by Vinjamuri, R., Crammond, D.J., Kondziolka, D., Heung-No Lee, Zhi-Hong Mao

“…This paper proposes an efficient method to acquire sources of tremor in patients with movement disorders based on blind source separation of convolutive…”
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Evoked potentials from passive elbow movements. II. Modification by motor intent by Crammond, D J, MacKay, W A, Murphy, J T

“…Subjects were instructed to remain passive or to react to a forearm perturbation by opposing the imposed movement. Evoked potentials (EPs) were recorded at 8…”
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