Results 81 to 90 of about 259,713 (390)

Layer-specific activation of sensory input and predictive feedback in the human primary somatosensory cortex

open access: yesScience Advances, 2019
Using laminar fMRI, we show that prediction and sensory inputs activate specific layers in human primary somatosensory cortex. When humans perceive a sensation, their brains integrate inputs from sensory receptors and process them based on their ...
Yinghua Yu   +9 more
semanticscholar   +1 more source

A Vertically‐Stacked Optoelectronic Sensor for Localized Hemodynamics Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a hemodynamics monitoring sensor that features vertically stacked microLEDs and a heterogeneously integrated photodetector. The vertically stacked microLEDs enable localized measurements, and by designing the interoptode distance according to the depth of the target region, this vertically stacked optoelectronic sensor is ...
Taeyeon Lee   +9 more
wiley   +1 more source

Oxytocin is implicated in social memory deficits induced by early sensory deprivation in mice [PDF]

open access: yes, 2016
Acknowledgements We thank Miss Jia-Yin and Miss Yu-Ling Sun for their help in breading the mice. Funding This work was supported by grants from the National Natural Science Foundation of China (81200933 to N.-N. Song; 81200692 to L.
Chen, Ling   +11 more
core   +2 more sources

Circuit organization of the excitatory sensorimotor loop through hand/forelimb S1 and M1

open access: yeseLife, 2021
Sensory-guided limb control relies on communication across sensorimotor loops. For active touch with the hand, the longest loop is the transcortical continuation of ascending pathways, particularly the lemnisco-cortical and corticocortical pathways ...
Naoki Yamawaki   +4 more
doaj   +1 more source

Stretching‐Orientation Reinforced Double Network Solvent‐Free Eutectic Gels for Ultrarobust, Flexible Human‐Machine Interaction Devices

open access: yesAdvanced Functional Materials, EarlyView.
This work develops an ultrarobust, flexible, and solvent‐free eutectic gel featuring stretch‐induced orientation. Overcoming hydrogel limitations, the gel achieves record toughness (133.86 MJ m−3) while integrating strain/temperature/capacitive sensing.
Tingzhong Li   +5 more
wiley   +1 more source

Neural Coding of Contact Events in Somatosensory Cortex.

open access: yesCerebral Cortex, 2019
Manual interactions with objects require precise and rapid feedback about contact events. These tactile signals are integrated with motor plans throughout the neuraxis to achieve dexterous object manipulation.
Thierri Callier   +2 more
semanticscholar   +1 more source

Cortical Response to Acute Implantation of the Utah Optrode Array in Macaque Cortex

open access: yesAdvanced Healthcare Materials, EarlyView.
Delivering light deep into the brain over a large volume while causing minimal tissue damage is a major challenge for non‐human primate optogenetics. This study evaluates Utah Optrode Array designs in vivo, revealing how changes in shank geometry, surface texture, and insertion parameters minimize acute damage—offering a path toward high‐precision ...
Adrián Villamarin‐Ortiz   +8 more
wiley   +1 more source

Supraspinal characterization of the thermal grill illusion with fMRI. [PDF]

open access: yes, 2014
BackgroundSimultaneous presentation of non-noxious warm (40°C) and cold (20°C) stimuli in an interlacing fashion results in a transient hot burning noxious sensation (matched at 46°C) known as the thermal grill (TG) illusion.
Duann, Jeng-Ren   +4 more
core   +2 more sources

An fMRI study on cortical responses during active self-touch and passive touch from others

open access: yesFrontiers in Behavioral Neuroscience, 2012
Active, self-touch and the passive touch from an external source engage comparable afferent mechanoreceptors on the touched skin site. However, touch directed to glabrous skin compared to hairy skin will activate different types of afferent ...
Rochelle eAckerley   +5 more
doaj   +1 more source

Superior colliculus modulates cortical coding of somatosensory information

open access: yesNature Communications, 2019
The cortex modulates activity in superior colliculus via a direct projection. What is largely unknown is whether (and if so how) the superior colliculus modulates activity in the cortex.
Saba Gharaei   +3 more
semanticscholar   +1 more source

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