superior colliculus

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an essential visual center between the retina and the striate cortex

References in periodicals archive ?
It is generated by synchronous firing of neurons along auditory nerve, cochlear nuclei, superior olivary nucleus, lateral lemniscus, and inferior colliculus.
For instance, within the superior colliculus (SC) -- a midbrain area that initiates eye movements to peripheral stimuli directly based on input from the eyes -, much more neural tissue is dedicated to processing foveal signals than to processing peripheral signals.
Depaulis, "Evidence for a role of the parafascicular nucleus of the thalamus in the control of epileptic seizures by the superior colliculus," Epilepsia, vol.
27) Conversely, Cornell and colleagues showed that cervical spine muscles respond to stimulation of the superior colliculus (28), which is a primary CNS centre for processing of visual information.
In normal anatomy, the verumontanum or seminal colliculus is a protrusion found on the posterior wall of the prostatic urethra.
In addition, lesions of the parietal lobe and superior temporal lobe in humans have been associated with difficulties in several processes related to orienting (Losier & Klein, 2001), and these areas, along with the pulvinar, superior colliculus and frontal eye fields, form part of the orienting network.
The distance from the most anterior point of the anterior colliculus to the center of the intercollicular groove was 11.
Wave V is believed to originate from the inferior colliculus (19-20).
In addition, the rostral superior colliculus projects to the Edinger-Westphal nucleus via the primary, shorter route through the pretectum and also through a secondary, longer route through the nucleus reticularis tegmenti pontis (pons), cerebellar cortex, and cerebellar nuclei.
82] Wave III is associated with the superior olivary complex and wave V is associated with the inferior colliculus, [82,83] so the differences between groups in these waveforms suggest impairments in these areas.
The 20th chapter discusses the role of the superior colliculus and the mutual influence between cortical and subcortical structures in eye movements and sensory-motor integration.
The exact pathogenesis of the superior colliculus hypointensity is not known.
Neuroimaging (CT and MRI) findings of Mobius syndrome include hypoplasia of the pons or medulla with correspondent CN6 and CN7 hypoplasia, absence of the medial colliculus at the level of the pons, absence of the hypoglossal prominence suggestive of CN12 nuclei hypoplasia, cerebellar hypoplasia, depression of the 4th ventricle, and calcification in the pons in the region of the CN6 nuclei.
Distinct basophilic inclusions were seen in frontal, motor, and parietal cortex, red nucleus, hypoglossal nucleus, pontine nuclei, and superior colliculus.