scholarly journals Space, time and number: common coding mechanisms and interactions between domains

Author(s):  
Deborah J. Serrien ◽  
Michiel M. Spapé

AbstractSpace, time and number are key dimensions that underlie how we perceive, identify and act within the environment. They are interconnected in our behaviour and brain. In this study, we examined interdependencies between these dimensions. To this end, left- and right-handed participants performed an object collision task that required space–time processing and arithmetic tests that involved number processing. Handedness of the participants influenced collision detection with left-handers being more accurate than right-handers, which is in line with the premise that hand preference guides individual differences as a result of sensorimotor experiences and distinct interhemispheric integration patterns. The data further showed that successful collision detection was a predictor for arithmetic achievement, at least in right-handers. These findings suggest that handedness plays a mediating role in binding information processing across domains, likely due to selective connectivity properties within the sensorimotor system that is guided by hemispheric lateralisation patterns.

Author(s):  
Jung-Hwan Kim ◽  
Minjeong Kim ◽  
Jay Kandampully

The purpose of this research is to determine the key dimensions of e-retail environment characteristics which affect consumer e-satisfaction and purchase intent and to examine the mediating role of e-satisfaction and the moderating effects of consumers’ previous e-shopping experience on the relationship between e-retail environment characteristics and consumer responses. The study focused on young adults ranging in age from 18 to 25. The results showed that convenience, customization, security/privacy, web appearance and entertainment value were the key characteristics of e-retail environment impacting e-satisfaction. E-satisfaction fully mediated the effects of e-retail environment characteristics on online purchase intent. Prior e-shopping experience was found to moderate the relationships among the key dimensions of e-retail environment, e-satisfaction, and e-purchase intent. The findings of this study add to the existing literature on e-service quality by focusing on e-retail environment characteristics beyond products and prices, and further by providing e-retailers with practical implications as to how they can improve their website environments for successful e-retailing business.


2020 ◽  
Vol 6 (2) ◽  
pp. eaay6036 ◽  
Author(s):  
R. C. Feord ◽  
M. E. Sumner ◽  
S. Pusdekar ◽  
L. Kalra ◽  
P. T. Gonzalez-Bellido ◽  
...  

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.


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