Results 41 to 50 of about 43,261 (267)
Spatial frequency sensitivity in macaque midbrain
Nature Communications, 2018 In primates, the superior colliculus (SC) contributes to rapid visual exploration with saccades. Here the authors show that the superior colliculus preferentially represents low spatial frequencies, which are the most prevalent in natural scenes.
Chih-Yang Chen +4 more
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Effective connectivity in subcortical visual structures in de novo Patients with Parkinson’s Disease
NeuroImage: Clinical, 2022 Background: Parkinson’s disease (PD) manifests with the appearance of non-motor symptoms before motor symptoms onset. Among these, dysfunctioning visual structures have recently been reported to occur at early disease stages.
Emmanuelle Bellot +5 more
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The functional role of GABA and glycine in monaural and binaural processing in the inferior colliculus of horseshoe bats [PDF]
, 1992 The functional role of GABA and glycine in monaural and binaural signal analysis was studied in single unit recordings from the central nucleus of the inferior colliculus (IC) of horseshoe bats (Rhinolophus rouxi) employing microiontophoresis of the ...
Grothe, Benedikt +3 more
core +1 more source
Anatomical Studies on Conduction Pathways of Advcrsive Movement [PDF]
, 1957 1. The descending fi bers from the areas 8 and 6 aβ reaching the lateral and ventral nuclei of the homolateral thalamus are recognized. They are considered to be the conduction pathways of the adversive movements caused by the stimulations on the ...
Hayashi, Mikiya, Jinnai, Dennosuke
core +1 more source
Impaired Auditory Temporal Selectivity in the Inferior Colliculus of Aged Mongolian Gerbils [PDF]
, 2011 Aged humans show severe difficulties in temporal auditory processing tasks (e.g., speech recognition in noise, low-frequency sound localization, gap detection). A degradation of auditory function with age is also evident in experimental animals.
Grothe, Benedikt +2 more
core +1 more source
The Search for Invertebrate Consciousness [PDF]
, 2020 There is no agreement on whether any invertebrates are conscious and no agreement on a methodology that could settle the issue. How can the debate move forward?
Birch, Jonathan
core +3 more sources
Superior Colliculus Control of Vibrissa Movements [PDF]
Journal of Neurophysiology, 2008 This study tested the role of the superior colliculus in generating movements of the mystacial vibrissae—whisking. First, we compared the kinematics of whisking generated by the superior colliculus with those generated by the motor cortex. We found that in anesthetized rats, microstimulation of the colliculus evoked a sustained vibrissa protraction ...
Marie E, Hemelt, Asaf, Keller
openaire +2 more sources
Prenatal VPA exposure and changes in sensory processing by the superior colliculus
Frontiers 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 +1 more source
Stimulus edges induce orientation tuning in superior colliculus
Nature Communications, 2023 Orientation columns exist in the primary visual cortex (V1) of cat and primates but not mouse. Intriguingly, some recent studies reported the presence of orientation and direction columns in the mouse superficial superior colliculus (sSC), while others ...
Yajie Liang +3 more
doaj +1 more source
Cross-Correlation in the Auditory Coincidence Detectors of Owls [PDF]
, 2008 Interaural time difference (ITD) plays a central role in many auditory functions, most importantly in sound localization. The classic model for how ITD is computed was put forth by Jeffress (1948). One of the predictions of the Jeffress model is that the
Christianson, G. Björn +2 more
core +1 more source