Results 1 to 10 of about 7,770 (230)

Activation of superior colliculi in humans during visual exploration [PDF]

open access: goldBMC Neuroscience, 2007
Background Visual, oculomotor, and – recently – cognitive functions of the superior colliculi (SC) have been documented in detail in non-human primates in the past. Evidence for corresponding functions of the SC in humans is still rare.
Karnath Hans-Otto   +2 more
doaj   +7 more sources

Evidence for a push-pull interaction between superior colliculi in monocular dynamic vision mode [PDF]

open access: goldCommunications Biology
Visual perception can operate in two distinct vision modes—static and dynamic—that have been associated with different neural activity regimes in the superior colliculus (SC).
Rita Gil   +3 more
doaj   +7 more sources

Unconscious Cueing via the Superior Colliculi: Evidence from Searching for Onset and Color Targets [PDF]

open access: goldBrain Sciences, 2012
According to the bottom-up theory of attention, unconscious abrupt onsets are highly salient and capture attention via the Superior Colliculi (SC). Crucially, abrupt onsets increase the perceived contrast.
Ulrich Ansorge, Isabella Fuchs
doaj   +9 more sources

Stereological analysis of the vascular network in superior colliculi [PDF]

open access: diamondScripta Medica, 2020
Background/Aim: Superior colliculi have an important role in the visual system, some motor functions and behaviour. Branches of the posterior cerebral artery and surrounding vessels form a collicular arterial network, which gives rise to several ...
Sladojević Igor   +2 more
doaj   +3 more sources

Involvement of the superior colliculi in crossmodal correspondences. [PDF]

open access: hybridAtten Percept Psychophys
AbstractThere is an increasing body of evidence suggesting that there are low-level perceptual processes involved in crossmodal correspondences. In this study, we investigate the involvement of the superior colliculi in three basic crossmodal correspondences: elevation/pitch, lightness/pitch, and size/pitch.
McEwan J, Kritikos A, Zeljko M.
europepmc   +5 more sources

In vivo Probabilistic Structural Atlas of the Inferior and Superior Colliculi, Medial and Lateral Geniculate Nuclei and Superior Olivary Complex in Humans Based on 7 Tesla MRI [PDF]

open access: goldFrontiers in Neuroscience, 2019
Despite extensive neuroimaging research of primary sensory cortices involved in auditory and visual functions, subcortical structures within these domains, such as the inferior and superior colliculi, the medial and lateral geniculate nuclei and the ...
María G. García-Gomar   +7 more
doaj   +4 more sources

Ultra High Field fMRI of Human Superior Colliculi Activity during Affective Visual Processing. [PDF]

open access: goldSci Rep, 2020
AbstractResearch on rodents and non-human primates has established the involvement of the superior colliculus in defensive behaviours and visual threat detection. The superior colliculus has been well-studied in humans for its functional roles in saccade and visual processing, but less is known about its involvement in affect.
Wang YC   +3 more
europepmc   +7 more sources

Dbx1 is a dorsal midbrain-specific determinant of GABAergic neuron fate and regulates differentiation of the dorsal midbrain into the inferior and superior colliculi [PDF]

open access: goldFrontiers in Cell and Developmental Biology
The mechanism underlying the differentiation of the dorsal midbrain into two morphologically and functionally distinct compartments, the inferior colliculus (IC) and superior colliculus (SC), which process auditory and visual information, respectively ...
Hong-Nhung Tran   +2 more
doaj   +4 more sources

Visual pattern discrimination in cats after removal of the superior colliculi [PDF]

open access: bronzePsychonomic Science, 1971
Two groups of cats were trained to make a visual discrimination between two patterns in a standard discrimination apparatus. Animals in Group I were trained until they reached a criterion level of 90% correct responding, had bilateral lesions made in the superior colliculi (SC), and were retrained.
Kenneth V. Anderson   +1 more
openalex   +3 more sources

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