Results 61 to 70 of about 31,377 (262)

Gamma Oscillations Distinguish True From False Memories [PDF]

Psychological Science, 2007
To test whether distinct patterns of electrophysiological activity prior to a response can distinguish true from false memories, we analyzed intracranial electroencephalographic recordings while 52 patients undergoing treatment for epilepsy performed a verbal free-recall task.
Sederberg, Per B., Schulze-Bonhage, Andreas, Madsen, Joseph R., Bromfield, Edward B., Litt, Brian, Brandt, Armin, Kahana, Michael J.   +6 more
openaire   +3 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

Coherent Changes in Neural Motor Network Activity during Levodopa-Induced Dyskinesia in a Rat Model of Parkinson’s Disease

Journal of Integrative Neuroscience
Background: Long-term use of levodopa, a metabolic precursor of dopamine (DA) for alleviation of motor symptoms in Parkinson’s disease (PD), can cause a serious side effect known as levodopa-induced dyskinesia (LID).
Elena S. Brazhnik, Ivan E. Mysin, Lyudmila B. Popova, Vladislav V. Minaychev, Nikolay I. Novikov   +4 more
doaj   +1 more source

A neural circuit for gamma-band coherence across the retinotopic map in mouse visual cortex

eLife, 2018
Cortical gamma oscillations have been implicated in a variety of cognitive, behavioral, and circuit-level phenomena. However, the circuit mechanisms of gamma-band generation and synchronization across cortical space remain uncertain.
Richard Hakim, Kiarash Shamardani, Hillel Adesnik   +2 more
doaj   +1 more source

Neocortical gamma oscillations in idiopathic generalized epilepsy [PDF]

Epilepsia, 2016
SummaryObjectiveAbsence seizures in patients with idiopathic generalized epilepsy (IGE) may in part be explained by a decrease in phasic GABAA (type‐A γ‐aminobutyric acid) receptor function, but the mechanisms are only partly understood. Here we studied the relation between ictal and interictal spike‐wave discharges (SWDs) and electroencephalography ...
Benedek, Krisztina, Berenyi, Antal, Gombkoto, Peter, Piilgaard, Henning, Lauritzen, Martin   +4 more
openaire   +4 more sources

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

GABA level, gamma oscillation, and working memory performance in schizophrenia

NeuroImage: Clinical, 2014
A relationship between working memory impairment, disordered neuronal oscillations, and abnormal prefrontal GABA function has been hypothesized in schizophrenia; however, in vivo GABA measurements and gamma band neural synchrony have not yet been ...
Chi-Ming A. Chen, Arielle D. Stanford, Xiangling Mao, Anissa Abi-Dargham, Dikoma C. Shungu, Sarah H. Lisanby, Charles E. Schroeder, Lawrence S. Kegeles   +7 more
doaj   +1 more source

Cooperation and competition of gamma oscillation mechanisms [PDF]

Journal of Neurophysiology, 2016
Oscillations of neuronal activity in different frequency ranges are thought to reflect important aspects of cortical network dynamics. Here we investigate how various mechanisms that contribute to oscillations in neuronal networks may interact.
Viriyopase, A., Memmesheimer, R.M., Gielen, C.C.A.M., Gielen, C.C.A.M.   +3 more
openaire   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Functional interaction of abnormal beta and gamma oscillations on bradykinesia in parkinsonian rats

Brain Research Bulletin
Bradykinesia, a debilitating symptom characterized by impaired movement initiation and reduced speed in Parkinson’s disease (PD), is associated with abnormal oscillatory activity in the motor cortex-basal ganglia circuit.
Xinxin Jiang, Jian Yang, Zirui Wang, Jun Jia, Gang Wang   +4 more
doaj   +1 more source