Results 61 to 70 of about 214,996 (309)

Context-dependent limb movement encoding in neuronal populations of motor cortex

Nature Communications, 2019
Network activity in primary motor cortex (M1) controls dexterous limb movements. Here, the authors show that the M1 population code varies according to contextual motor demands that are conveyed via the secondary motor cortex (M2).
Wolfgang Omlor, Anna-Sophia Wahl, Pia Sipilä, Henry Lütcke, Balazs Laurenczy, I-Wen Chen, Lazar T. Sumanovski, Marcel van ’t Hoff, Philipp Bethge, Fabian F. Voigt, Martin E. Schwab, Fritjof Helmchen   +11 more
doaj   +1 more source

Multisensory integration and motor resonance in the primary motor cortex

Cortex
Humans are endowed with a motor system that resonates to speech sounds, but whether concurrent visual information from lip movements can improve speech perception at a motor level through multisensory integration mechanisms remains unknown. Therefore, the aim of the study was to explore behavioral and neurophysiological correlates of multisensory ...
Serena Giurgola, Emanuele Lo Gerfo, Alessandro Farnè, Alice C. Roy, Nadia Bolognini   +4 more
openaire   +5 more sources

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

FEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho, Rebecca Schmitt, Aneesha Dasgupta, Alexandra Ducharme, Jason Doles   +4 more
wiley   +1 more source

Low-Frequency Local Field Potentials and Spikes in Primary Visual Cortex Convey Independent Visual Information [PDF]

, 2008
Local field potentials (LFPs) reflect subthreshold integrative processes that complement spike train measures. However, little is yet known about the differences between how LFPs and spikes encode rich naturalistic sensory stimuli.
Belitski, A., Logothetis, Nikos K., Magri, C., C. Magri, Montemurro, M.A., Logothetis, N, Panzeri, S, Logothetis, N.K., A. Belitski, Panzeri, Stefano, Murayama, Y., Gretton, A., Y. Murayama, Magri, C, Gretton, A, Murayama, Y, Montemurro, M, Murayama, Yusuke, M. A. Montemurro, N. K. Logothetis, Belitski, Andrei, Panzeri, S., Logothetis, N., Magri, Cesare, Montemurro, Marcelo A., A. Gretton, S. Panzeri, Gretton, Arthur, Belitski, A, Montemurro, M.   +29 more
core   +1 more source

Conversion of Sensory Signals into Motor Commands in Primary Motor Cortex [PDF]

The Journal of Neuroscience, 1998
Movement triggered by sensory stimuli requires that the networks generating the motor commands receive an adequate driving input, which, in general, is a transformed version of the initial sensory signal. We investigated the nature of this transformation in a task in which monkeys categorize the speed of tactile stimuli as either low or high, reaching ...
E, Salinas, R, Romo
openaire   +2 more sources

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Effects of rTMS conditioning over the fronto-parietal network on motor versus visual attention

, 2007
Many studies have shown that visuospatial orienting attention depends on a network of frontal and parietal areas in the right hemisphere. Rushworth et al. [Rushworth, M. F., Krams, M., & Passingham, R. E. The attentional role of the left parietal cortex:
Rounis, E., Rounis, Elisabeth, Yarrow, K., Yarrow, K, Rounis, E, Rothwell, JC, Rothwell, J.C.   +6 more
core   +1 more source

fNIRS Study of Brain Activation during Multiple Motor Control Conditions in Younger and Older Adults

Journal of Integrative Neuroscience
Background: Evidence suggests that aging contributes to decreased cerebral blood flow and brain oxyhemoglobin (HbO2) in the association cortices during rest.
Duoduo Yu, Conghui Wei, Zhen Yuan, Jun Luo   +3 more
doaj   +1 more source

Dual-hemispheric transcranial direct current stimulation (tDCS) over primary motor cortex does not affect movement selection.

PLoS ONE, 2019
Volition and sense of agency are two primary components of a voluntary or internally generated movement. It has been shown that movement selection cannot be altered without interfering with the sense of volition using single pulse transcranial magnetic ...
Nivethida Thirugnanasambandam, Felix G Contreras-Castro, Mark Hallett   +2 more
doaj   +1 more source

Super‐Refractory Status Epilepticus (SRSE) in a Patient With Compound Heterozygous OPA1 Variants: Case Report and Literature Review

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Super‐Refractory Status Epilepticus (SRSE) is a rare, life‐threatening neurological emergency with unclear etiology in many cases. Mitochondrial dysfunction, often due to disease‐causing genetic variants, is increasingly recognized as a cause, with each gene producing distinct pathophysiological mechanisms.
Pouria Mohammadi, Lara Basovic, Christopher Michael McGraw   +2 more
wiley   +1 more source