Results 21 to 30 of about 2,175,907 (298)

Inhibitory effects of prepulse stimuli on the electrophysiological responses to startle stimuli in the deep layers of the superior colliculus [PDF]

open access: yesFrontiers in Neuroscience
BackgroundPrepulse inhibition (PPI) is a phenomenon where a weak prepulse stimulus inhibits the startle reflex to a subsequent stronger stimulus, which can be induced by various sensory stimulus modalities such as visual, tactile, and auditory stimuli ...
Yu Ding   +5 more
doaj   +2 more sources

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

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   +1 more source

The Superior Colliculus: Cell Types, Connectivity, and Behavior

open access: yesNeuroscience Bulletin, 2022
The superior colliculus (SC), one of the most well-characterized midbrain sensorimotor structures where visual, auditory, and somatosensory information are integrated to initiate motor commands, is highly conserved across vertebrate evolution.
Xue Liu   +5 more
semanticscholar   +1 more source

Unraveling circuits of visual perception and cognition through the superior colliculus.

open access: yesNeuron, 2021
The superior colliculus is a conserved sensorimotor structure that integrates visual and other sensory information to drive reflexive behaviors. Although the evidence for this is strong and compelling, a number of experiments reveal a role for the ...
M. Basso, M. Bickford, Jianhua Cang
semanticscholar   +1 more source

The tectum/superior colliculus as the vertebrate solution for spatial sensory integration and action.

open access: yesCurrent Biology, 2021
The superior colliculus, or tectum in the case of non-mammalian vertebrates, is a part of the brain that registers events in the surrounding space, often through vision and hearing, but also through electrosensation, infrared detection, and other sensory
T. Isa   +3 more
semanticscholar   +1 more source

Causal role for the primate superior colliculus in the computation of evidence for perceptual decisions

open access: yesNature Neuroscience, 2021
Trained monkeys performed a two-choice perceptual decision-making task in which they reported the perceived orientation of a dynamic Glass pattern, before and after unilateral, reversible, inactivation of a brainstem area—the superior colliculus (SC ...
Elizabeth J. Jun   +6 more
semanticscholar   +1 more source

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

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