Results 1 to 10 of about 42,901 (221)

Characterization of primary visual cortex input to specific cell types in the superior colliculus [PDF]

open access: yesFrontiers in Neuroanatomy, 2023
The superior colliculus is a critical brain region involved in processing visual information. It receives visual input directly from the retina, as well as via a projection from primary visual cortex. Here we determine which cell types in the superficial
Shuang Jiang   +3 more
doaj   +2 more sources

Immunohistochemical localization of serotonin in the superior colliculus of porcupine (Hystrix cristata) [PDF]

open access: yesQScience Connect, 2012
The distribution and localization of serotonin immunoreactive cells in the superior colliculus of the porcupine (Hystrix cristata) was studied using the peroxidase-antiperoxidase method and an antiserum against serotonin.
S. Timurkaan   +3 more
doaj   +1 more source

Neural encoding of instantaneous kinematics of eye-head gaze shifts in monkey superior Colliculus

open access: yesCommunications Biology, 2023
The midbrain superior colliculus is a crucial sensorimotor stage for programming and generating saccadic eye-head gaze shifts. Although it is well established that superior colliculus cells encode a neural command that specifies the amplitude and ...
A. John van Opstal
doaj   +1 more source

Whole-body prepulse inhibition protocol to test sensorymotor gating mechanisms in monkeys. [PDF]

open access: yesPLoS ONE, 2014
Prepulse inhibition (PPI) is the decrease of startle reflex amplitude when a slight stimulus is previously generated. This paradigm may provide valuable information about sensorimotor gating functionality.
Patricia G Saletti   +5 more
doaj   +1 more source

Effect of hypoxia on the retina and superior colliculus of neonatal pigs. [PDF]

open access: yesPLoS ONE, 2017
To evaluate the effect of hypoxia on the neonatal pig retina and brain, we analysed the retinal ganglion cells (RGCs) and neurons in the superior colliculus, as well as the response of astrocytes in both these central nervous system (CNS) structures ...
Noelia Ruzafa   +4 more
doaj   +1 more source

Organization of the inputs and outputs of the mouse superior colliculus

open access: yesNature Communications, 2021
The superior colliculus (SC) receives diverse cortical inputs to drive many behaviors. Here, based on comprehensive mapping of cortico-tectal projections, the authors refined the superior colliculus into medial, centromedial, centrolateral, and lateral ...
Nora L. Benavidez   +27 more
doaj   +1 more source

High-density electrode recordings reveal strong and specific connections between retinal ganglion cells and midbrain neurons

open access: yesNature Communications, 2022
The superior colliculus receives visual information from retinal ganglion cells, but it remains unclear how this information is organized and integrated in vivo.
Jérémie Sibille   +7 more
doaj   +1 more source

Effects of Transcranial Ultrasound Stimulation on Trigeminal Blink Reflex Excitability

open access: yesBrain Sciences, 2021
Recent evidence indicates that transcranial ultrasound stimulation (TUS) modulates sensorimotor cortex excitability. However, no study has assessed possible TUS effects on the excitability of deeper brain areas, such as the brainstem.
Andrea Guerra   +10 more
doaj   +1 more source

Superior colliculus modulates cortical coding of somatosensory information

open access: yesNature Communications, 2020
While there is no direct pathway from the superior colliculus to the cortex, the authors find that the superior colliculus modulates sensory-evoked responses in the somatosensory cortex.
Saba Gharaei   +3 more
doaj   +1 more source

The mechanism of saccade motor pattern generation investigated by a large-scale spiking neuron model of the superior colliculus. [PDF]

open access: yesPLoS ONE, 2013
The subcortical saccade-generating system consists of the retina, superior colliculus, cerebellum and brainstem motoneuron areas. The superior colliculus is the site of sensory-motor convergence within this basic visuomotor loop preserved throughout the ...
Jan Morén, Tomohiro Shibata, Kenji Doya
doaj   +1 more source

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