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The Distinct Role of the Amygdala, Superior Colliculus and Pulvinar in Processing of Central and Peripheral Snakes. [PDF]

open access: goldPLoS ONE, 2015
Visual processing of ecologically relevant stimuli involves a central bias for stimuli demanding detailed processing (e.g., faces), whereas peripheral object processing is based on coarse identification.
Inês Almeida   +2 more
doaj   +3 more sources

Prenatal VPA exposure and changes in sensory processing by the superior colliculus [PDF]

open access: goldFrontiers in Integrative Neuroscience, 2011
Disorders involving dysfunctional sensory processing are characterized by an inability to filter sensory information, particularly simultaneously arriving multimodal inputs. We examined the effects of prenatal exposure to valproic acid (VPA), a teratogen
Georgia eDendrinos   +2 more
doaj   +2 more sources

Involvement of the Superior Colliculus in SIDS Pathogenesis [PDF]

open access: yesBiomedicines, 2023
The aim of this study was to investigate the involvement of the mesencephalic superior colliculus (SC) in the pathogenetic mechanism of SIDS, a syndrome frequently ascribed to arousal failure from sleep.
Anna M. Lavezzi   +3 more
doaj   +2 more sources

Multisensory Information Facilitates Reaction Speed by Enlarging Activity Difference between Superior Colliculus Hemispheres in Rats [PDF]

open access: gold, 2011
Animals can make faster behavioral responses to multisensory stimuli than to unisensory stimuli. The superior colliculus (SC), which receives multiple inputs from different sensory modalities, is considered to be involved in the initiation of motor ...
Junya Hirokawa   +5 more
openalex   +6 more sources

Detecting biological motion signals in human and monkey superior colliculus: a subcortical-cortical pathway for biological motion perception [PDF]

open access: yesNature Communications
Most vertebrates, including humans, are highly adept at detecting and encoding biological motion, even when it is portrayed by just a few point lights attached to the head and major joints.
Xiqian Lu   +7 more
doaj   +2 more sources

Preference-independent saliency map in the mouse superior colliculus [PDF]

open access: yesCommunications Biology
Detecting salient stimuli in a visual scene is crucial for animal survival, yet how the brain encodes visual saliency remains unclear. Here, using two-photon calcium imaging, we reveal a preference-independent saliency map in the superficial superior ...
Ruixiang Wu   +6 more
doaj   +2 more sources

Rat superior colliculus encodes the transition between static and dynamic vision modes [PDF]

open access: yesNature Communications
The visual continuity illusion involves a shift in visual perception from static to dynamic vision modes when the stimuli arrive at high temporal frequency, and is critical for recognizing objects moving in the environment.
Rita Gil, Mafalda Valente, Noam Shemesh
doaj   +2 more sources

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

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

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