scholarly journals The role of boundary contours in suprathreshold binocular perception of contrast and spatial phase

2019 ◽  
Vol 19 (10) ◽  
pp. 223
Author(s):  
Chao Han ◽  
Wanyi Huang ◽  
Zijiang J He ◽  
Teng Leng Ooi
Keyword(s):  
Spatial Phase ◽  
Binocular Perception

scholarly journals Prevalence of multiple subtypes of binocularly-modulated visual neurons in the mouse superior colliculus

2020 ◽  
Author(s):  
Ashley Lynn Russell ◽  
Jason W Triplett
Keyword(s):  
Eye Movements ◽  
Superior Colliculus ◽  
Visual Processing ◽  
Spatial Summation ◽  
Stimulus Presentation ◽  
Visual Neurons ◽  
Evoked Activity ◽  
Multiple Species ◽  
Binocular Perception

A central role of the visual system is to integrate inputs from both eyes to form one coherent visual perception. The superior colliculus (SC) plays a central role in visual processing, gaze orientation and vergence eye movements necessary for binocular vision. Indeed, the SC receives direct inputs from both the contralateral and ipsilateral eye and binocularly-modulated neurons have been identified in the SC of multiple species. However, evidence for binocular processing in rodents, particularly mice, has not been functionally confirmed. In this study we recorded visually-evoked activity in the mouse SC while presenting visual stimuli to each eye individually or both together and reveal a surprising diversity of binocularly-modulated responses. Strikingly, we found that ~2/3 of all identified neurons in the anteromedial SC were binocularly-modulated. Furthermore, we identified four binocular subtypes based on their differential responses under varying ocularities of stimulus presentation. Interestingly, we found both orientation- and direction- selective (OS and DS, respectively) neurons in all four binocular subtypes. And, tuning properties of binocular neurons were distinct from neighboring monocular neurons, exhibiting more linear spatial summation. Together, these data suggest that binocular neurons are prevalent in the anteromedial SC of the mouse. Additionally, the distinct tuning properties of binocular neurons suggest a previously unappreciated complexity of visual processing in the SC, which may contribute to binocular perception.

scholarly journals The role of feature density in determining V1 BOLD fMRI sensitivity to spatial phase structure

2004 ◽  
Vol 4 (8) ◽  
pp. 544-544 ◽  
Author(s):  
C. A. Olman ◽  
K. Ugurbil ◽  
D. Kersten
Keyword(s):  
Phase Structure ◽  
Bold Fmri ◽  
Spatial Phase

scholarly journals Role of mean free path in spatial phase correlation and nodal screening

2006 ◽  
Vol 74 (6) ◽  
pp. 999-1005 ◽  
Author(s):  
B. A. van Tiggelen ◽  
D Anache ◽  
A Ghysels
Keyword(s):  
Free Path ◽  
Mean Free Path ◽  
Phase Correlation ◽  
Spatial Phase

scholarly journals The role of spatial phase in texture segmentation and contour integration

10.1167/6.5.5 ◽  
2006 ◽  
Vol 6 (5) ◽  
pp. 5 ◽  
Author(s):  
Bruce C. Hansen ◽  
Robert F. Hess
Keyword(s):  
Texture Segmentation ◽  
Contour Integration ◽  
Spatial Phase

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor
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