scholarly journals The Contribution of Left and Right Visual Fields to Perceived Orientation

2010 ◽  
Vol 10 (7) ◽  
pp. 865-865
Author(s):  
R. R. Dearing ◽  
L. R. Harris ◽  
R. T. Dyde
Keyword(s):  
Visual Fields ◽  
Left And Right

scholarly journals Cuttlefish use stereopsis to strike at prey

2020 ◽  
Vol 6 (2) ◽  
pp. eaay6036 ◽  
Author(s):  
R. C. Feord ◽  
M. E. Sumner ◽  
S. Pusdekar ◽  
L. Kalra ◽  
P. T. Gonzalez-Bellido ◽  
...  
Keyword(s):  
Information Processing ◽  
Visual Information ◽  
Convergent Evolution ◽  
Visual Fields ◽  
Three Dimensional ◽  
Visual Information Processing ◽  
Depth Information ◽  
Cephalopod Species ◽  
Left And Right

The camera-type eyes of vertebrates and cephalopods exhibit remarkable convergence, but it is currently unknown whether the mechanisms for visual information processing in these brains, which exhibit wildly disparate architecture, are also shared. To investigate stereopsis in a cephalopod species, we affixed “anaglyph” glasses to cuttlefish and used a three-dimensional perception paradigm. We show that (i) cuttlefish have also evolved stereopsis (i.e., the ability to extract depth information from the disparity between left and right visual fields); (ii) when stereopsis information is intact, the time and distance covered before striking at a target are shorter; (iii) stereopsis in cuttlefish works differently to vertebrates, as cuttlefish can extract stereopsis cues from anticorrelated stimuli. These findings demonstrate that although there is convergent evolution in depth computation, cuttlefish stereopsis is likely afforded by a different algorithm than in humans, and not just a different implementation.

Masked priming is abstract in the left and right visual fields

2005 ◽  
Vol 95 (3) ◽  
pp. 414-422 ◽  
Author(s):  
Jeffrey S. Bowers ◽  
Emma L. Turner
Keyword(s):  
Visual Fields ◽  
Masked Priming ◽  
Left And Right

Vowel processing in the left and right visual fields

1982 ◽  
Vol 16 (1) ◽  
pp. 147-157 ◽  
Author(s):  
D. Salmaso ◽  
C. Umiltà
Keyword(s):  
Visual Fields ◽  
Left And Right

Cerebral Asymmetry in the Perceived Duration of Color Stimuli

1980 ◽  
Vol 50 (3_suppl) ◽  
pp. 1239-1246
Author(s):  
Sue A. Koch ◽  
Donald J. Polzella ◽  
Frank Da Polito
Keyword(s):  
Time Perception ◽  
Visual Information ◽  
Process Model ◽  
Visual Fields ◽  
Positive Function ◽  
Logarithmic Function ◽  
Cerebral Asymmetry ◽  
Left And Right ◽  
Hemispheric Control ◽  
Perceived Duration

20 right-handed males judged the duration of small and large colored circles, which were briefly exposed in the left, center, and right visual fields. Perceived duration was a logarithmic function of exposure duration and a positive function of size and chromaticity. Over-all accuracy was equivalent in the left and right visual fields, but the effects of chromaticity and duration on subjects' judgments were asymmetrical. These and other findings suggest a two-process model of time perception in which there is right hemispheric control over a visual information processor and left hemispheric control over a timer.

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